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Environmental science homework help

September 18, 2025/in General Questions /by Besttutor

Number of Pages: 2 (Double Spaced)

Number of sources: 2

Writing Style: APA

Type of document: Essay

Academic Level:Undergraduate

Category: Environmental Issues

Language Style: English (U.S.)

Order Instructions: Attached

Week 2 – Assignment 1

PLEASE NEED TO TAKE A PHOTO AND DO THE LAB, SEE BELOW THE TEMPLATE:

Properties of Soil, Agriculture and Water Availability Impacts Laboratory

[WLO: 2] [CLOs: 1, 3, 5]

This lab enables you to analyze the natural porosity and particle size of soil samples along with the chemical composition and profile of different soil types.

The Process:

Take the required photos and complete all parts of the assignment (calculations, data tables, etc.). On the “Lab Worksheet,” answer all of the questions in the “Lab Questions” section. Finally, transfer all of your answers and visual elements from the “Lab Worksheet” into the “Lab Report.” You will submit both the “Lab Report” and the “Lab Worksheet” to Waypoint.

The Assignment:

Make sure to complete all of the following items before submission:

Before you begin the assignment, read the Properties of Soil: Agricultural and Water Availability Impacts Investigation ManualPreview the document and review The Scientific Method (Links to an external site.)Links to an external site. presentation video.

Complete Activities 1 through 4 using materials in your kit, augmented by additional materials that you will supply. Photograph each activity following these instructions:

When taking lab photos, you need to include in each image a strip of paper with your name and the date clearly written on it.

Complete all parts of the Week 2 Lab WorksheetPreview the document, and answer all of the questions in the “Lab Questions” section.

Transfer your responses to the lab questions and the data tables and your photos from the “Lab Worksheet” into the “Lab Report” by downloading the Lab Report TemplatePreview the document.

Submit your completed “Lab Report” and “Lab Worksheet” through Waypoint.

Carefully review the Grading Rubric (Links to an external site.)Links to an external site. for the criteria that will be used to evaluate your assignment.

Name of Lab

Your Name

SCI 207: Our Dependence Upon the Environment

Instructor’s Name

Date

*This template will enable you to turn your lab question responses into a polished Lab Report. Simply copy paste your answers to the lab questions, as well as all data tables, graphs, and photographs, in the locations indicated. Before you submit your Lab Report, it is recommended that you run it through Turnitin, using the student folder, to ensure protection from accidental plagiarism. Please delete this purple text before submitting your report.

Name of Lab

Introduction

Copy and paste your response to Question One here.

Copy and paste your response to Question Two here.

Copy and paste your response to Question Three here.

Materials and Methods

Copy and paste your response to Question Four here.

Results

Copy and paste your completed Data Tables here.

Copy and paste any Graphs here. Include a numbered figure caption below it, in APA format.

Copy and paste your Photographs here, in the order they were taken in the lab. Include numbered figure captions below them, in APA format.

Discussion

Copy and paste your response to Question Five here.

Copy and paste your response to Question Six here.

Copy and paste your response to Question Seven here.

Copy and paste your response to Question Eight here.

References

Copy and paste your response to Question

2)

ACTIVITY

Lab Worksheet

Hypotheses

Activity 1.

Activity 2.

Activity 3.

Activity 4.

Observations/Data Tables

Data Table 1. Particle Size Distribution and Soil Type

Depth of Clay Layer (cm) Depth of Silt Layer (cm) Depth of Sand Layer (cm) Total Depth (cm) %

Clay %

Silt %

Sand Soil Texture

Soil Sample A

Data Table 2. Determination of Soil Porosity

Time Taken for First Drop to Emerge from Column (s)

Sand Sample

Clay Sample

Soil Sample A

continued on next page

Data Table 3. pH Comparison of Soil Samples

Soil Sample A Soil Sample B

(Location Description: )

pH

Data Table 4. Nitrogen, Phosphorus, and Potash Comparison in Soil Samples

Nitrogen Phosphorus Potash

Soil Sample A

Soil Sample B

Photographs

Activity 1. Activity 2.

Activity 3. Activity 4.

 

Lab Questions

Please answer the following entirely in your own words and in complete sentences: Introduction

1. Background—What is important to know about the topic of this lab? Use at least one outside source (other than course materials) to answer this question. Cite the source using APA format. Answers should be 5–7 sentences in length.

[Write your answers here]

2. Outcomes—What was the main purpose of this lab?

[Write your answers here]

3. Hypotheses—What were your hypotheses for the activities of this lab? Identify each hypothesis clearly, and explain your reasoning.

[Write your answers here]

Materials and Methods

4. Using your own words, briefly describe what materials and methods you used in each of the activities. Your answer should be sufficiently detailed so that someone reading it would be able to replicate what you did. Explain any measurements you made.

[Write your answers here]

Discussion

5. Based upon the results of each activity, explain whether you accepted or rejected your hypotheses and why.

[Write your answers here]

6. What important information have you learned from this lab? Use at least one outside source (scholarly for full credit) to answer this question. Cite the source using APA format.

Answers should be 5–7 sentences in length.

[Write your answers here]

7. What challenges did you encounter when doing this lab? Name at least one.

[Write your answers here]

8. What additional information would you need to know, beyond what you did in this lab, to

determine whether a farm would be agriculturally productive or not? Provide at least 3 examples.

[Write your answers here]

Literature Cited

9. List the references you used to answer these questions. (Use APA format, and alphabetize by the last name.)

[Write your answers here]

USE THE RESOURCES REQUIRE BELOW:

Text

Bensel, T., & Turk, J. (2014). Contemporary environmental issues (2nd ed.). Retrieved from https://content.ashford.edu

Chapter 3: Feeding the World

Supplemental Material

Carolina Distance Learning. (n.d.). Properties of soil: Agricultural and water availability impacts investigation manual [PDF]. Retrieved from https://ashford.instructure.com

This lab manual provides background information on soil properties and will assist you in your Properties of Soil: Agricultural and Water Availability Impacts Laboratory assignment. This manual is available for download in your online classroom.

Recommended Resources

Multimedia

Happen Films. (2017, May 21). Organic sustainable farming is the future of agriculture – The future of food (Links to an external site.)Links to an external site. [Video file]. Retrieved from https://youtu.be/hWkYtZxpQUo

This video provides information about community supported sustainable agriculture and may assist you in your Sustaining our Agricultural Resources assignment this week.

Accessibility Statement (Links to an external site.)Links to an external site.

Privacy Policy (Links to an external site.)Links to an external site.

Web Pages

GRACE Communications Foundation. (n.d.). Sustainable agriculture: The basics (Links to an external site.)Links to an external site.. Retrieved from http://www.sustainabletable.org/246/sustainable-agriculture-the-basics

This web page provides information about the basic elements of sustainable agriculture and may assist you in your Sustaining our Agricultural Resources Assignment.

Accessibility Statement does not exist.

Privacy Policy (Links to an external site.)Links to an external site.

UC Davis, Agricultural Sustainability Institute. (n.d.). What is sustainable agriculture? (Links to an external site.)Links to an external site. Retrieved from http://asi.ucdavis.edu/programs/sarep/about/what-is-sustainable-agriculture

This web page provides information about the philosophy behind sustainable agriculture and may assist you in your Sustaining our Agricultural Resources Assignment.

Accessibility Statement (Links to an external site.)Links to an external site.

Privacy Policy (Links to an external site.)Links to an external site.

Union of Concerned Scientists. (n.d.). What is sustainable agriculture? (Links to an external site.)Links to an external site. Retrieved from https://www.ucsusa.org/food-agriculture/advance-sustainable-agriculture/what-is-sustainable-agriculture#.W1Ekbdgzqu4

This web page provides information about sustainable agricultural practices and may assist you in your Sustaining our Agricultural Resources Assignment.

Accessibility Statement does not exist.

Privacy Policy (Links to an external site.)Links to an external site.

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week 3

September 18, 2025/in General Questions /by Besttutor

As you know, our world is heavily dependent on fossil fuels for meeting our energy needs. In Chapter 6 of Contemporary Environmental Issues, you have read that there is concern about the possibility of reaching a peak in oil production, and even coal and natural gas will eventually run out. (Next week, in Chapter 7 of the textbook, we will read about an even more pressing reason for no longer relying on fossil fuels: global climate change.) Chapter 8 of Contemporary Environmental Issues introduces a variety of possible alternative energy sources, including nuclear power and many renewable options like wind power and solar energy. Next week, you will be participating in a collaborative project aimed at developing an alternative energy plan for a particular community – the details of which won’t be revealed until then. For now, let’s all pool our research into what possible energy choices might be able to help us move away from fossil fuels.In your main post this week, pleaseIdentify two alternatives to fossil fuels that are currently available.Discuss the barriers that keep these alternatives from replacing coal, oil, and natural gas as our primary means of energy.Discuss the role that government plays in ensuring a transition to these renewable alternatives in a post-carbon world.Be creative here – the ideas you explore now might become the building blocks for next week’s sustainable energy plan. Your initial post should be at least 250 words in length. Utilize at least two scholarly or reputable resources and your textbook to support your claims, using the Scholarly, Peer Reviewed, and Other Credible Sources (Links to an external site.)Links to an external site. document for guidance. Cite your sources in APA style (Links to an external site.)Links to an external site., as outlined in Ashford Writing Center (Links to an external site.)Links to an external site.. Quoted text should constitute no more than ten percent of your post.

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Stream Morphology Laboratory

September 18, 2025/in General Questions /by Besttutor

Prior to beginning work on this lab, read the Stream Morphology investigation manual. This lab enables you to construct a physical scale model of a stream system to help you understand how streams and rivers shape the landscape and how human actions can affect river ecosystems. This lab is done with materials that you will need to supply; the list of items you will need to obtain is in the Stream Morphology investigation manual.

The Process

Take the required photos and complete all parts of the lab assignment (calculations, data tables, etc.). Use the Lab Worksheet as a resource to complete the Lab Report Template. Transfer any answers and visual elements from the Lab Worksheet into the Lab Report Template. You will submit the Lab Report Template through Waypoint in the classroom.

The Assignment

Make sure to complete all of the following items before submission:

· Before you begin the assignment, read the Stream Morphology investigation manual and review SCI207 – The Scientific Method (Links to an external site.) presentation video.

· Complete all activities using the materials that you supply. Photograph each activity following these instructions:

o When taking lab photos, you need to include in each image a strip of paper with your name and the date clearly written on it.

· Use the Lab Worksheet as a resource to complete the Lab Report Template.

· Must use at least two credible sources outside of the textbook and lab manual.

· Submit your completed “Lab Report” via Waypoint.

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Assignment Description

September 18, 2025/in General Questions /by Besttutor

Pollutants can harm ecosystem function and may also harm human health.

You will write an APA-style research paper about pollutants, their impacts, and mitigation of harmful effects. Include the following:

  • Select 1 example of an environmental pollutant from the following list:
    • Acid precipitation/ Acid rain
    • Smog
    • DDT pesticide use
    • Eutrophication
  • Answer the following questions about the pollution problem that you chose:
    • Describe the pollutant chosen and the source of the pollutants. Include both natural and human sources, as applicable.
      • Is this a point-source pollutant or nonpoint-source pollutant? Explain.
    • What are the harmful impacts of the pollution?
      • Describe impacts to both humans and to ecosystem structure and function.
    • What steps are in place to eliminate the pollutant or to mitigate harm from the pollutant?
      • Describe examples of laws or regulations that apply to the pollution and its sources.
      • Also, describe educational programs, technology, or other initiatives that are used to help control the pollution.
    • Have the programs, best management practices, or regulations been effective in resolving harm from the pollutant?
      • Give examples of progress, or explain with examples what more could be done.

Please submit your assignment.

For assistance with your assignment, please use your text, other credible references, intellipath, and course materials.

The following rubric will be used for grading:

Grading Rubric
70% Content Development/Critical Thinking: Student uses relevant content to fully and accurately answer all questions. Student demonstrates critical thinking by synthesizing original answers in student’s own words based on reading and research, and includes relevant examples.
20% Organization, Grammar, and Presentation: Organization is clear. Writing clearly and effectively communicates relevant content. Few if any errors in grammar, spelling, and sentence structure.
10% 5% Information Literacy and Research: Student selects and uses high-quality, credible references relevant to the assignment questions.

5% Sources are correctly cited using APA style: The paper follows APA format and includes a title page, abstract, body of paper, and reference list.

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EHS Projects 4 thru 8 and final project

September 18, 2025/in General Questions /by Besttutor

OSH 4308, Advanced Concepts in Environmental Safety Management 1

 

Course Description A comprehensive overview of the occupational safety and health field to include the application of quantitative problem solving related to workplace safety and health. This course is also designed to be helpful for students in preparation for the ASP and CSP exams.

Course Textbook Yates, W. D. (2011). Safety professional’s reference and study guide. Boca Raton, FL: CRC Press.

Course Learning Outcomes Upon completion of this course, students should be able to:

1. Recognize safety, health, and environmental hazards dealing with ergonomic, electrical, natural, biological,

radiological, physical, mechanical, and other relevant sources.

2. Apply appropriate measurement and evaluation techniques to safety, health, and environmental hazards.

3. Explain important laws, codes, and regulations related to occupational safety and health and the environment.

4. Recommend appropriate means for controlling safety, health, and environmental hazards.

5. Perform appropriate calculations in relation to measurement, evaluation, and control of safety, health, and

environmental hazards.

6. Recognize and discuss safety, health, and environmental training and management techniques.

7. Recognize and discuss fundamental business principles, practices, and metrics commonly applied to safety,

health, and environmental practice.

8. Explain scientific facts and concepts important to the occupational safety and health professional.

 

Credits Upon completion of this course, the students will earn three (3) hours of college credit.

Course Structure

1. Unit Learning Outcomes: Each unit contains Learning Outcomes that specify the measurable skills and knowledge students should gain upon completion of the unit.

2. Unit Lesson: Each unit contains a Unit Lesson, which discusses unit material. 3. Reading Assignments: Each unit contains Reading Assignments from one or more chapters from the

textbook. Suggested Readings are provided in Unit I, II, IV, and V Study Guides to aid students in their course of study. The readings themselves are not provided in the course, but students are encouraged to read the resources listed if the opportunity arises as they have valuable information that expands upon the lesson material. Students will not be tested on their knowledge of the Suggested Readings.

4. Learning Activities (Non-Graded): These non-graded Learning Activities are provided in Units I-VIII to aid students in their course of study.

5. Discussion Boards: Discussion Boards are a part of all CSU term courses. Information and specifications regarding these assignments are provided in the Academic Policies listed in the Course Menu bar.

6. Unit Quizzes: This course contains eight Unit Quizzes, one to be completed at the end of each unit. Quizzes are used to give students quick feedback on their understanding of the unit material and are composed of multiple-choice questions.

OSH 4308, Advanced Concepts in Environmental Safety Management Course Syllabus

 

 

OSH 4308, Advanced Concepts in Environmental Safety Management 2

7. Unit Assignments: Students are required to submit for grading Unit Assignments in Units II-VIII. Unit VIII contains two Assignments. Specific information and instructions regarding these assignments are provided below. Grading rubrics are included with the Unit II-VIII Assignments. Specific information about accessing these rubrics is provided below.

8. Ask the Professor: This communication forum provides you with an opportunity to ask your professor general or course content related questions.

9. Student Break Room: This communication forum allows for casual conversation with your classmates.

CSU Online Library The Library is available to support your courses and programs. The online library includes: databases, journals, e-books, research guides, and other support services. The eResources are accessible 24/7 and can be accessed through the Online Portal. To access the library, log into myCSU Student Portal and then click on CSU Online Library. The CSU Library offers several reference services. E-mail (library@columbiasouthern.edu) and telephone assistance is available (1.877.268.8046) Monday – Thursday 8 am to 5 pm, and Friday from 8 am to 3 pm. Ask Librarian! is available 24/7: look for the chat box on the online library page. Librarians can help you develop your research plan or to assist you in any way in finding relevant, appropriate and timely information. Reference requests can include customized keyword search strategies, links to articles, database help and other services.

Unit Assignments Overview of the Unit Assignments In this course, you are asked to prepare a Comprehensive Report as the Unit VIII Final Project, which is made up of various scenarios throughout each unit. Units II through VIII each contain a scenario for you to solve and to provide recommendations. By the end of the course, you are asked to collect all of the individual responses from each scenario and to insert them into a Comprehensive Report as the Unit VIII Final Project. Theme and Setting for Unit Assignments You are employed by Be Safe Consulting, Inc. (BSCI), as an entry-level safety consultant. You report directly to Bob Sanders, the supervising Certified Safety Professional (CSP). For the last two months, you have been assigned to conduct a comprehensive safety evaluation for Acme Manufacturing Co. Based on the observations, calculations, and recommendations in Unit II through Unit VIII, prepare a Comprehensive Report to Bob Sanders, who will in turn use this information to prepare a final report to Acme Manufacturing Co. Board of Directors. While the Board of Directors may be looking for detailed business implications, Bob Sanders is looking for a detail of potential employee-hazard exposures and your recommendation rationale (calculations, observations, and/or regulations). Unit II Project Ventilation Report You are employed by Be Safe Consulting, Inc. (BSCI) as an entry-level safety consultant. You report directly to Bob Sanders, the supervising Certified Safety Professional (CSP). BSCI has been contracted by Acme Manufacturing Co. to conduct a study to determine employee exposures to various particulates and gases. In addition, your company has been contracted to determine if the current ventilation systems that are in place are adequate to protect employees from an over exposure to these chemicals. After conducting a field assessment, prepare a written report that Bob Sanders can utilize to prepare a final comprehensive report for the Board of Directors. During your field investigation, you find the following field observations: Welding Room The company has six welding booths, or areas that are partitioned only for the use of welding curtains. The booth is open to mixing in the front and top. The company is worried about the welder’s exposure to iron oxide (PEL 10 mg/m3). For a valid sample, you must have a minimum of six hours of sampling (The remaining two hours of the work day is considered

 

mailto:library@columbiasouthern.edu

 

OSH 4308, Advanced Concepts in Environmental Safety Management 3

to be equal to or less than the sampled exposure. As a result of your air sampling over an eight-hour time period (i.e., the work schedule), you receive the following analytical report:

Name Location Conc. 1 Time 1 Conc. 2 Time 2 Conc. 3 Time 3

Anne Welding

Booth #1 4.3 mg/m3 150 min. 3.7 mg/m3 150 min 2.2

mg/m3 240 min

Frank Worldly

Booth #2 2.1 mg/m3 180 min 2.8 mg/m3 120 min 3.1

mg/m3 240 min

Jim Young Booth #3 1.7 mg/m3 205 min 1.25

mg/m3 125 min

1.03 mg/m3

150 min

Betty Johnson

Booth #4 12.8

mg/m3 165 min

11.2 mg/m3

72 min 9.8

mg/m3 123 min

Jack Jones Booth #5 7.8 mg/m3 190 min 14.2

mg/m3 149 min

8.8 mg/m3

140 min

Joey Apperton

Booth #6 3.9 mg/m3 155 min 4.6 mg/m3 90 min 2.1

mg/m3 46 min

Based on this information, determine the employee’s actual exposure to iron oxide, whether the samples were valid, and if not, why? Show your work either in the report or as an appendix. During further evaluations of the welding booths, you determine that each booth utilizes a local exhaust system to remove the iron oxide and other contaminants prior to mixing with the breathing air. You take the following measurements:

Location Air Velocity

(fpm)

Work distance from exhaust opening (in

inches)

Duct Diameter (in inches)

Flow Rate (cfm)

Booth #1 683 18 8 Unknown

Booth #2 Unknown 16 8 12,375

Booth #3 710 16 12 Unknown

Booth #4 184 26 8 Unknown

Booth #5 Unknown 22 8 9721

Booth #6 Unknown 18 12 11421

After taking the air samples for employee exposures to iron oxide, then measuring and calculating the performance of the local exhaust ventilation (paying particular attention to the specifics), what recommendations would you make to reduce the employee’s overexposure, if any, to the ventilation systems? Hazardous Materials Storage Area As part of your assessment, you have been asked to evaluate and determine if the hazardous materials storage area has adequate ventilation. In addition to the federal requirements, Acme’s insurance carrier requires that they have a minimum of 12 air changes per hour. In your evaluation, you collect the following information:

Area Width (ft.)

Area Length (ft.)

Area Height (ft.)

Ventilation Supply #1

(volume – cfm)

Ventilation Supply #2

(volume – cfm)

22 30 14 874 993

Determine if the current hazardous materials storage area is adequate and meets the requirements of Acme’s insurance carrier. What recommendations would you make to correct the discrepancies, if any?

 

 

OSH 4308, Advanced Concepts in Environmental Safety Management 4

Foundry Room Acme has a foundry room, which is nearing the point of being outdated in terms of engineering controls. For example, one employee stands near an operation that has a canopy hood exhaust and routinely puts his face in the flow of the hood, causing him to inhale particulates and gases that are directly being drawn into the hood. Part of your evaluation is to make a recommendation for a new type of exhaust system. Which one would you recommend, and why? Your report should be in APA style and be at least one page in length, double-spaced (not including title, references, and appendix pages). Respond to the details in each section and be sure to include at least each of the following sections in your report for this unit:

 Introduction: Briefly describe why the studies were performed (why you started the study).

 Report details: Briefly discuss the details of the scenario (what you found from the study).

 Conclusions and recommendations: Briefly describe your recommendations based on your findings (what you recommend to resolve any deficiencies).

 Appendix: Provide measurements and calculations (show your work). Unit III Project Radiation Safety Report The executives at Acme Manufacturing Co. were impressed by your first report, and they have asked you and BSCI to return for more work. BSCI has been contracted by Acme Manufacturing Co. to conduct a study to determine employee exposures to radiation. In addition, your company has been contracted to determine the effectiveness of engineering controls, including shielding. After conducting a field assessment, prepare a written report for Bob Sanders (CSP) to present to the Board of Directors. During your field investigation, you find the following field observations: Test Equipment and Repair Facility The company has an on-site test equipment and repair facility. Much of the test equipment contains a radiation source. Normal practice inside the facility is to limit the time of exposure of employees working on this equipment as a method of control. However, the company is looking at the possibility of installing lead shields or increasing the distance from the source, thus increasing employee time working on equipment. Based on the following information determine the employee’s exposure:

Location Employee Distance (Initial)

Distance (Proposed)

Intensity (Initial)

Intensity at proposed distance

Bench #3 Rita Ray D’Ashun 0.5 ft. 2 ft. 110 mrem/h Unknown

Bench #5 Robert Long 1 ft. 3 ft. 137 mrem/h Unknown

Bench #6 Paul Row 0.75 ft. 1.5 ft. 102 mrem/h Unknown

Based on this information, determine the employee’s actual exposure rate to the radiation source. Show your work (either in the report or as an appendix). The second option under consideration is to install lead shields in order to reduce the employee’s dose rate. Using the information provided in the table above, determine the intensity at the same distances listed above if a 5 cm lead shield was placed between the source and the detector. [µ for lead, (662 keV gamma ray) = 1.23 cm-1] Radar Testing Facility As part of your assessment, you have been asked to evaluate the estimated power density levels for both near and far fields. You have conducted your assessment and measurements with the following data:

Location Diameter

(cm) Antenna Power

(watts)

Power Density (Near Field)

(mW/cm2)

Power Density (Far Field) (mW/cm2)

Radar Unit #1 48 in 50,000

Radar Unit #2 26 110,000

 

 

 

OSH 4308, Advanced Concepts in Environmental Safety Management 5

Laser Laboratory Acme Manufacturing is currently considering constructing a laser laboratory, which will contain Class III, IIIA, and IIIB lasers. Identify the safety control measures that the client must consider before proceeding to the design phase of the project. Your report should be in APA style and be at least one page in length, double-spaced (not including title, references, and appendix pages). Respond to the details in each section and be sure to include at least each of the following sections in your report for this unit:

 Introduction: Briefly describe why the studies were performed (why you started the study).

 Report details: Briefly discuss the details of the scenario (what you found from the study).

 Conclusions and recommendations: Briefly describe your recommendations based on your findings (what you recommend to resolve any deficiencies).

 Appendix: Provide measurements and calculations (show your work). Unit IV Project Hazardous Noises Report After receiving good remarks from your previous work, you hear that Acme Manufacturing Co. has asked you and BSCI to return for some additional work. BSCI has been contracted by Acme Manufacturing Co. to conduct a study to determine employee exposures to noise. In addition, Acme Manufacturing Co. has requested that while on site, you conduct a needs analysis to determine the development of a new safety training program. Explain your methodology and the steps in conducting this needs analysis. After conducting a field assessment, prepare a written report for Bob Sanders (CSP) to present to the Board of Directors. During your field investigation, you find the following field observations: Machine Shop #1 The company has an on-site maintenance and repair facility. Inside Machine Shop #1, there are five employees that operate a variety of machines, ranging from stationary and portable grinders, drill presses, and metal shearers. Based on the information provided in the following table, determine the individual employee’s exposure: (DO NOT COMBINE NOISE LEVELS)

Location Employee Sample

#1 Sample Time #1

Sample #2

Sample Time #2

Sample #3

Sample Time #3

Stationary Grinding Wheel

Robert Jones 82 dBA 90 min 91 dBA 125 min 83 dBA 265 min

Drill Press #4 Clara Tucker 89 dBA 135 min 79 dBA 249 min 81 dBA 96 min

Metal Shear #2 Rick Starnes 75 dBA 283 min 94 dBA 39 min 84 dBA 158 min

Metal Shear #3 Jennie Gump 83 dBA 114 min 73 dBA 239 min 95 dBA 127 min

Bench Press #7 Bernie Edwards 73 dBA 203 min 79 dBA 172 min 83 dBA 105 min

Carpentry Shop #2 Inside Carpentry Shop #2, there are six machines operating almost continuously, including table saws, planers, exhaust systems, jointers, with 10 employees working in this area. To determine whether this table should be designated as a hazardous noise environment, thus requiring employees to be entered into the hearing conservation program, you must calculate combined exposures and treat the entire area as one noise source. The following table indicates the recorded measurements that you collected during your on-site assessment. Does the data from this table indicate a hazardous noise environment, and do you recommend entering employees into a hearing conservation program?

Machine Noise Level (dBA)

Table Saw #3 92 dBA

Jointer #4 87 dBA

Table Saw #5 90 dBA

Exhaust Ventilation System 80 dBA

Planer #2 84 dBA

Drill Press #1 79 dBA

 

 

OSH 4308, Advanced Concepts in Environmental Safety Management 6

Electronic Communication Repair Shop Acme Manufacturing is currently considering remodeling this shop in order to install a new noise absorbing wall and floor insulation. They have asked that you review the previous history of noise level exposures in this area and provide your recommendations. However, this data is given in measurements of N/m2, but the Project Engineer is requesting the information in W/m2. Given the following data, convert N/m2 to W/m2 and include it in your report:

Date Location SPL (N/m2)

4/12/10 East Wall 0.0683 N/m2

4/12/10 West Wall 0.0742 N/m2

4/14/10 South Wall 0.0813 N/m2

4/14/10 North Wall 0.0699 N/m2

Your report should be in APA style and be at least one page in length, double-spaced (not including title, references, and appendix pages). Respond to the details in each section and be sure to include at least each of the following sections in your report for this unit:

 Introduction: Briefly describe why the studies were performed (why you started the study).

 Report details: Briefly discuss the details of the scenario (what you found from the study).

 Conclusions and recommendations: Briefly describe your recommendations based on your findings (what you recommend to resolve any deficiencies).

 Appendix: Provide measurements and calculations (show your work). Unit V Project Thermal Stressors Report Bob Sanders (your supervisor) has another job for you. Acme Manufacturing Co. was impressed by your last report, and they have asked you to return to complete another job. BSCI has been contracted by Acme Manufacturing Co. to conduct a study at one of its facilities to determine employee exposures to various thermal stressors at different times. You are to conduct this study in January and July of 2012. After collecting and recording data from the field assessments, prepare a written report for Bob Sanders (CSP) to present to the Board of Directors. During your field investigations, you find the following field observations: Security Personnel The security personnel, while contracted by Acme, are still employees that need to be monitored. There are three main entries that are staffed with security personnel. These entries have a booth, which is roughly 5’x5’ with no heating or cooling. Each security officer works an eight hour shift, with two separate fifteen minute breaks (one during the first half of the shift, and the second during the second half of the shift) and one 30-minute meal break. The only opportunity to rehydrate is made during the break or meal periods. There are no drinking fountains or coolers in the security booths. Calculate the wind chill factor and wet bulb globe temperature (WBGT) for each location.

January findings

Location Temperature

0F

Wind Velocity (mph)

Wind Chill Factor (Calculated)

North Entrance -3 20

South Entrance -4 26

East Entrance -6 17

 

 

 

OSH 4308, Advanced Concepts in Environmental Safety Management 7

July findings

Location Wet Bulb

(0F) Dry Bulb

(0F)

Globe Temp (0F)

Calculated WBGT Index

North Entrance 98 89 92

South Entrance 102 91 94

East Entrance 99 88 87

Based on this information, determine which category each security location is exposed to and make a recommendation as to what changes, if any, you would make. Your report should be in APA style and be at least one page in length, double-spaced (not including title, references, and appendix pages). Respond to the details in each section and be sure to include at least each of the following sections in your report for this unit:

 Introduction: Briefly describe why the studies were performed (why you started the study).

 Report details: Briefly discuss the details of the scenario (what you found from the study).

 Conclusions and recommendations: Briefly describe your recommendations based on your findings (what you recommend to resolve any deficiencies).

 Appendix: Provide measurements and calculations (show your work). Unit VI Project Hydrostatics and Hydraulics Report BSCI has another job for you at Acme Manufacturing Co., and Bob Sanders (your supervisor) has asked you to complete it. BSCI has been contracted by Acme Manufacturing Co. to collect measurements of various industrial storage facilities and certain aspects of its fire suppression system. After collecting field measurements and calculating values, prepare a written report for Bob Sanders (CSP) to present to the Board of Directors. During your field investigations, you find the following field observations: Piping System Repair A piping system repair must be made to a vertical piping system. The pipe is 60 ft. long prior to its turn to a horizontal direction. There is a repair that must be done at 35 feet above the floor. The pipe is filled with a liquid having the same properties as water. Due to operational considerations, the pipe cannot be drained. The fluid is considered non-hazardous due to its chemical properties. Before the repair can be completed, a decision has to be made about the material to use and the method in which the repair can occur safely. At the location of the pipe repair, what is the pressure of the fluid? (NOTE: the height of the cylinder is the length of the pipe minus the height of the repair from the floor.) Water Storage Tank Some repairs have been made to the existing water storage tank. New valves and piping systems are to be installed in the distribution system. You have been asked to calculate the velocity of the fluid through the bottom drain opening and prior to entry into the distribution system. This velocity will help to determine the specific valve that must be installed prior to the distribution system. The tank at its highest point is 24 feet. Determine the velocity of the fluid at fluid heights of 24 feet, 18 feet, 12 feet, and 6 feet. Fire Suppression System In a horizontally installed piping system, water flows through a 10 inch pipe. The head loss in a 500 foot section is 40 feet. The residual pressure at Point A is 55 psi and the velocity at Point A is 7 ft./s. If the velocity at Point B is 8.5 ft/s, what is the residual pressure at Point B? Your report should be in APA style and be at least one page in length, double-spaced (not including title, references, and appendix pages). Respond to the details in each section and be sure to include at least each of the following sections in your report for this unit:

 Introduction: Briefly describe why the studies were performed (why you started the study).

 Report details: Briefly discuss the details of the scenario (what you found from the study).

 

 

OSH 4308, Advanced Concepts in Environmental Safety Management 8

 Conclusions and recommendations: Briefly describe your recommendations based on your findings (what you recommend to resolve any deficiencies).

 Appendix: Provide measurements and calculations (show your work). Unit VII Project Fire Prevention and Protection Report Acme Manufacturing Co. has another job for BSCI, and Bob Sanders (your supervisor) asks you to complete it. BSCI has been contracted by Acme Manufacturing Co. to conduct a fire protection and prevention inspection. During the inspection, you make several notes, which you use to prepare a written report. Later, Bob Sanders (CSP) intends to utilize your report as he presents the details to the Board of Directors. During your field investigations, you find the following data: Welding Shop In the welding shop, you collect measurements of the floor space which measures 125 ft. x 80 ft. In the center of the room, near a column, you notice that there is one fire extinguisher, which is a 2A10B:C rated extinguisher. Determine if this is an adequate number of extinguishers for this area. Explain. Molding Shop In the molding shop, employees prepare resins to shape the molds used in creating one of the products manufactured by Acme. The area has a strong odor of acetone, which is used significantly in the preparation of the resin molds. In this area, you notice that there is a sprinkler system, and the sprinkler head is green. What is the maximum ceiling temperature for this area? As mentioned, employees in this shop use a significant amount of acetone in the preparation process. Also while conducting the inspection of this shop, you notice an overhead gas space heater with an open flame. What are the UEL/UFL and LEL/LFL of acetone? What actions would you take immediately in this area? Explain. Your report should be in APA style and be at least one page in length, double-spaced (not including title, references, and appendix pages). Respond to the details in each section and be sure to include at least each of the following sections in your report for this unit:

 Introduction: Briefly describe why the studies were performed (why you started the study).

 Report details: Briefly discuss the details of the scenario (what you found from the study).

 Conclusions and recommendations: Briefly describe your recommendations based on your findings (what you recommend to resolve any deficiencies).

 Appendix: Provide measurements and calculations (show your work). Unit VIII Project Ergonomics Report Bob Sanders (your supervisor) has another job for you to complete for BSCI. This time, you have been asked to examine the ergonomic details at Acme Manufacturing Co. Specifically, Acme Manufacturing Co. has asked you to conduct an ergonomic evaluation of the packing line. Given the following worksheet (see the link below to download the worksheet), calculate the (1) RWL and (2) the Lifting Index. Using the data and results, provide your written recommendations for corrective action. Click here to download a copy of the job analysis worksheet included with data. Your report should be in APA style and be at least one page in length, double-spaced (not including title, references, and appendix pages). Respond to the details in each section and be sure to include at least each of the following sections in your report for this unit:

 Introduction: Briefly describe why the studies were performed (why you started the study).

 Report details: Briefly discuss the details of the scenario (what you found from the study).

 Conclusions and recommendations: Briefly describe your recommendations based on your findings (what you recommend to resolve any deficiencies).

 Appendix: Provide measurements and calculations (show your work).

 

https://online.columbiasouthern.edu/CSU_Content/Courses/Emergency_Services/OSH/OSH4308/12A/UnitVIII_JobAnalysisWorksheet_forProject.docx

 

OSH 4308, Advanced Concepts in Environmental Safety Management 9

Unit VIII Final Project Comprehensive Report For the Final Project, you are asked to prepare a Comprehensive Report, which is made up of various scenarios from previous units. Units II through VIII each contain a scenario for you to solve and to provide recommendations. For this assignment, you are asked to compile your responses from each scenario and frame them into a Comprehensive Report. The Comprehensive Report requires each of the following:

I. Title page: Use APA style for the title page and all other components of this report (be sure to cite and reference any outside sources).

II. Executive summary: Summarize the entire report by briefly identifying the main points of each individual report. III. Table of contents: Construct a table of contents for your report. IV. Reports: Provide each of the individual reports (with any necessary corrections or improvements). V. Appendix: Include each appendix from the individual reports (with any necessary corrections or improvements).

The purpose of this project and its constituent reports is to provide you with an opportunity to gather data, calculate data, make recommendations, and prepare reports as an advanced safety professional. Once complete, keep your Comprehensive Report as a demonstration of your ability to perform as an advanced safety professional, as well as a representation of your attention to detail. Bosses like that kind of thing, and so do future employers.

APA Guidelines CSU requires that students use APA style for papers and projects. Therefore, the APA rules for formatting, quoting, paraphrasing, citing, and listing of sources are to be followed. Students can find CSU’s Citation Guide in the myCSU Student Portal by clicking on the “Citation Resources” link in the “Learning Resources” area of the myCSU Student Portal. This document includes examples and sample papers and provides information on how to contact the CSU Success Center.

Blackboard Grading Rubrics Assignment Rubrics One or more assignments in this course utilizes a Blackboard Grading Rubric. A rubric is a tool that lists evaluation criteria and can help you organize your efforts to meet the requirements of an assignment. Your professor will use the Blackboard Grading Rubric to assign points and provide feedback for the assignment. You are encouraged to view the assignment rubric before submitting your work. This will allow you to review the evaluation criteria as you prepare your assignments. You may access the rubric in “My Grades” through the “Tools” button in your course menu. Click the “View Rubric” link to see the evaluation criteria for the assignment. Upon receiving your assignment grade, you may view your grade breakdown and feedback in the rubric.

CSU Grading Rubrics for Papers/Projects, Discussion Boards, and Assessments The Learning Resource area of the myCSU Student Portal provides the rubrics, and information on how to use them, for Discussion Boards, written response questions in Unit Assessments, and Research Papers/Projects. The course writing assignments will be graded based on the CSU Grading Rubric for all types of writing assignments, unless otherwise specified within assignment instructions. In addition, all papers will be submitted for electronic evaluation to rule out plagiarism. Course projects will contain project-specific grading criteria defined in the project directions. To view the rubrics, click the Academic Policies link on the Course Menu, or access them through the CSU Grading Rubric link found in the Learning Resources area of the myCSU Student Portal.

 

 

OSH 4308, Advanced Concepts in Environmental Safety Management 10

Communication Forums These are non-graded discussion forums that allow you to communicate with your professor and other students. Participation in these discussion forums is encouraged, but not required. You can access these forums with the buttons in the Course Menu. Instructions for subscribing/unsubscribing to these forums are provided below. Click here for instructions on how to subscribe/unsubscribe and post to the Communication Forums. Ask the Professor This communication forum provides you with an opportunity to ask your professor general or course content questions. Questions may focus on Blackboard locations of online course components, textbook or course content elaboration, additional guidance on assessment requirements, or general advice from other students. Questions that are specific in nature, such as inquiries regarding assessment/assignment grades or personal accommodation requests, are NOT to be posted on this forum. If you have questions, comments, or concerns of a non- public nature, please feel free to email your professor. Responses to your post will be addressed or emailed by the professor within 48 hours. Before posting, please ensure that you have read all relevant course documentation, including the syllabus, assessment/assignment instructions, faculty feedback, and other important information. Student Break Room This communication forum allows for casual conversation with your classmates. Communication on this forum should always maintain a standard of appropriateness and respect for your fellow classmates. This forum should NOT be used to share assessment answers.

Grading

Discussion Boards (8 @ 2%) = 16% Unit Projects (7 @ 4%) = 28% Quizzes (8 @ 3%) = 24% Unit VIII Final Project = 32% Total = 100%

 

Course Schedule/Checklist (PLEASE PRINT) The following pages contain a printable Course Schedule to assist you through this course. By following this schedule, you will be assured that you will complete the course within the time allotted.

 

https://online.columbiasouthern.edu/CSU_Content/common_files/instructions/DB/Create_New_Thread_Subscribe.pdf

 

OSH 4308, Advanced Concepts in Environmental Safety Management 11

OSH 4308, Advanced Concepts in Environmental Safety Management Course Schedule

By following this schedule, you will be assured that you will complete the course within the time allotted. Please keep this schedule for reference as you progress through your course.

 

Unit I Safety Regulations and OSHA Record Keeping

Review:  Unit Study Guide  Learning Activities (Non-Graded): See Study Guide

Read:  Chapter 2: Regulations and OSHA Record Keeping  Suggested Reading: See Study Guide

Discuss:

 Discussion Board Response: Submit your response to the Discussion Board question by Saturday, Midnight (Central Time)

 Discussion Board Comment: Comment on another student’s Discussion Board response by Tuesday, Midnight (Central Time)

Submit:  Quiz by Tuesday, Midnight (Central Time)

Notes/Goals:

 

Unit II Particulates, Gases, and Ventilation

Review:  Unit Study Guide  Learning Activities (Non-Graded): See Study Guide

Read:  Chapter 4: Particulates and Gases  Chapter 7: Ventilation  Suggested Reading: See Study Guide

Discuss:

 Discussion Board Response: Submit your response to the Discussion Board question by Saturday, Midnight (Central Time)

 Discussion Board Comment: Comment on another student’s Discussion Board response by Tuesday, Midnight (Central Time)

Submit:  Quiz by Tuesday, Midnight (Central Time)  Project by Tuesday, Midnight (Central Time)

Notes/Goals:

 

Unit III Radiation Safety

Review:  Unit Study Guide  Learning Activities (Non-Graded): See Study Guide

Read:  Chapter 26: Radiation Safety

Discuss:

 Discussion Board Response: Submit your response to the Discussion Board question by Saturday, Midnight (Central Time)

 Discussion Board Comment: Comment on another student’s Discussion Board response by Tuesday, Midnight (Central Time)

Submit:  Quiz by Tuesday, Midnight (Central Time)  Project by Tuesday, Midnight (Central Time)

Notes/Goals:

 

 

 

OSH 4308, Advanced Concepts in Environmental Safety Management 12

OSH 4308, Advanced Concepts in Environmental Safety Management Course Schedule

Unit IV Noise, OSHA’s Hearing Conservation Program, and Training

Review:  Unit Study Guide  Learning Activities (Non-Graded): See Study Guide

Read:  Chapter 8: Noise and OSHA’s Hearing Conservation Program  Chapter 17: Training  Suggested Reading: See Study Guide

Discuss:

 Discussion Board Response: Submit your response to the Discussion Board question by Saturday, Midnight (Central Time)

 Discussion Board Comment: Comment on another student’s Discussion Board response by Tuesday, Midnight (Central Time)

Submit:  Quiz by Tuesday, Midnight (Central Time)  Project by Tuesday, Midnight (Central Time)

Notes/Goals:

 

Unit V Thermal Stressors and Electrical Safety

Review:  Unit Study Guide  Learning Activities (Non-Graded): See Study Guide

Read:  Chapter 11: Thermal Stressors  Chapter 14: Electrical Safety  Suggested Reading: See Study Guide

Discuss:

 Discussion Board Response: Submit your response to the Discussion Board question by Saturday, Midnight (Central Time)

 Discussion Board Comment: Comment on another student’s Discussion Board response by Tuesday, Midnight (Central Time)

Submit:  Quiz by Tuesday, Midnight (Central Time)  Project by Tuesday, Midnight (Central Time)

Notes/Goals:

 

Unit VI Hydrostatics and Hydraulics

Review:  Unit Study Guide  Learning Activities (Non-Graded): See Study Guide

Read:  Chapter 16: Hydrostatics and Hydraulics

Discuss:

 Discussion Board Response: Submit your response to the Discussion Board question by Saturday, Midnight (Central Time)

 Discussion Board Comment: Comment on another student’s Discussion Board response by Tuesday, Midnight (Central Time)

Submit:  Quiz by Tuesday, Midnight (Central Time)  Project by Tuesday, Midnight (Central Time)

Notes/Goals:

 

 

 

OSH 4308, Advanced Concepts in Environmental Safety Management 13

OSH 4308, Advanced Concepts in Environmental Safety Management Course Schedule

Unit VII Fire Protection and Prevention

Review:  Unit Study Guide  Learning Activities (Non-Graded): See Study Guide

Read:  Chapter 10: Fire Protection and Prevention

Discuss:

 Discussion Board Response: Submit your response to the Discussion Board question by Saturday, Midnight (Central Time)

 Discussion Board Comment: Comment on another student’s Discussion Board response by Tuesday, Midnight (Central Time)

Submit:  Quiz by Tuesday, Midnight (Central Time)  Project by Tuesday, Midnight (Central Time)

Notes/Goals:

 

Unit VIII Ergonomics

Review:  Unit Study Guide  Learning Activities (Non-Graded): See Study Guide

Read:  Chapter 22: Ergonomics

Discuss:

 Discussion Board Response: Submit your response to the Discussion Board question by Saturday, Midnight (Central Time)

 Discussion Board Comment: Comment on another student’s Discussion Board response by Tuesday, Midnight (Central Time)

Submit:  Quiz by Tuesday, Midnight (Central Time)  Project by Tuesday, Midnight (Central Time)  Final Project by Tuesday, Midnight (Central Time)

Notes/Goals:

 

 

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Apply macroeconomic concepts to current and personal economic events and decisions.

September 18, 2025/in General Questions /by Besttutor

This assignment is aligned to this course outcome:

  • Apply macroeconomic concepts to current and personal economic events and decisions.

In addition to writing about macroeconomic concepts, it’s equally important to be able to convey your understanding of these concepts by communicating them to others. In the workplace you might do this by writing briefs (like you did for Assignment 1), creating presentations, or writing reports for your manager or team. An example final report and optional template are provided below.

For this Final Report assignment, you can build off your previous economic brief and selected industry from Assignment 1, or you can select another industry such as Finance and Insurance, Health Care, or Manufacturing, and examine one of the macroeconomic indicators or policies below:

  • GDP growth
  • Unemployment rates
  • Inflation rates
  • Interest rates
  • Imports and exports
  • Government fiscal policy and issues related to taxation, government spending, and budget deficits
  • FED (central bank) monetary policy and issues related to the FED’s mission to stabilize the economy

Example Final Report, Assignment 2 Template, Strayer Writing Standards

  1. Review an example final report.
  2. Use the optional template to help you get started.
  3. Review the Strayer Writing Standards. (See Instructions below.)

Instructions

Use Microsoft Word to prepare a Final Report that is a minimum of two to three (2-3) pages long in which you:

1. Introduce your selected industry with a brief one-paragraph introduction. Refer to the NAICS (North American Industry Classification System) to review the details about your industry.

2. Assess your selected industry’s relative size and growth rate in the economy.

These macroeconomic resources will help you find the size and growth rate of your industry in the U.S. economy and/or relative to GDP:

• Real GDP – Select Section 1, then table 1.1.6 (select MODIFY to change the year range and frequency). Data is from Bureau of Economic Analysis (bea.gov).

• % Change in Real GDP – Select Section 1, then table 1.1.1 (select MODIFY to change the year range and frequency). Data is from Bureau of Economic Analysis (bea.gov).

• GDP by Industry – Steps:

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FUNDAMENTALS OCCUPTIONAL SAFETY AND HEALTH

September 18, 2025/in General Questions /by Besttutor

Question 1

 

1.       

 

Which of the following is NOT one of the primary causes of falls?

 

[removed] twist while lifting the load to gain momentum.
[removed] plan ahead.
[removed] push, do not pull.
[removed] lift with your legs, not with your back.

 

 

 

 

 

Question 6

 

1.       

 

Describe the differences between flash point, fire point, and auto-ignition temperature. Which are more stable, combustible liquids or flammable liquids? Why?

Your response must be at least 200 words in length. You are required to use  All sources used,  must be referenced; paraphrased and quoted material must have accompanying citations.

 

 

 

Question 7

 

There is often an overlap between OSHA standards and local or state building, electrical, and life safety codes. Is this overlap helpful or not helpful to the safety manager in doing his or her job?

 

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Fire Protection Technology

September 18, 2025/in General Questions /by Besttutor

The course project is a scenario-based case study, which will be due in Unit VIII. A scenario-based case study is similar to other case studies you may have experienced. The scenario-based case study used in this course provides descriptive information and data to help you make decisions as if you were actively participating in a real-life investigation of a warehouse fire. There are eight assignments for the scenario-based case study (one per unit). You will complete and submit Part 1, Sections I and II of the course project in this unit. Use APA level one headings for each section. The heading should be indicative of the major section to follow. Here is a tutorial on level headings.

For the course project, you will utilize what you learn throughout the course to solve a real-world problem of what fire protection is needed to create plausible actions, concepts, or inventions to solve fire protection deficiencies that resulted in a large-scale fire in a warehouse distribution center.

From Unit I through Unit VII, you will complete one part of your recommendation in each unit, and in Unit VIII, you will write an executive summary and conclusion. You will then compile all parts into one document as your final project. You can arrange each part in any order you would like before submitting the final project. For instance, this assignment about fire pumps is covered in Chapter 6 of the textbook; however, you may choose to cover fire protection, detection, and suppression systems (completed in Unit II) as the first part of your final project and to place fire pumps after another topic of your choice. You are able to organize the final report sections in any order that makes logical sense to you.

During each part, you will prepare a well-organized narrative consisting of two sections. Only submit the assignment for that unit until the final case study is compiled from all units and submitted as a single document in Unit VIII. However, you should evaluate and revise the recommendations as needed during the process for each previous unit as you learn more during the progression of this course.

This scenario-based case study is designed to draw upon your imagination to think creatively on potential concerns with fire and explosive hazards, fire controls, and fire and emergency management. You should look at fire protection technology in a holistic way. This way of design thinking is significantly different from what was previously designed by thinking in isolation. You will evaluate and develop recommendations to resolve potential fires in the future.

Please click here to view the background information of the scenario.

Through the scenario-based case study process, you will begin developing a tool that will synchronize suggestions to improve life safety. You will accomplish this by utilizing recommendations to improve fire protection after a warehouse distribution center fire.

Section I

Section I will address the foreign-made fire pump and your recommendations after reviewing the background information.

Your narrative will consist of your evaluation of the foreign-made fire pump and your choice of fire pump that you would recommend for the rebuild of the warehouse. The background information will provide you the needed material to identify the basic components common to fire protection for the City of Washington Distribution Warehouse. As you review the material, make sure you do the following actions:

  1. examine what contributed to the fire,
  2. analyze building components and existing fire suppression systems, and
  3. prepare and disseminate recommendations.

Fire protection design involves an integrated approach where designers need to analyze the building’s use, occupancy, footprint, and existing fire protection systems or components. This assignment is not looking for compliance with building codes nor expecting you to be a fire protection system designer. However, the purpose of this assignment is for you to apply the concepts and knowledge you learned in this unit as you begin writing your final project covering protection systems that will detect, contain, control, and extinguish a fire. In addition, this assignment provides you with the opportunity to use your skills, expertise, and experience to enrich your response.

Section II

Section II will address the ethical dilemma of using the foreign-made fire pump, as described in the Points to Ponder Scenario within this unit, as a right versus right action or a right versus wrong action.

As we saw in the unit lesson, Kidder (1995) described four basic paradigms that deal with most ethical dilemmas of right versus right choices. He believed ethical decisions often involve choices of the individual versus community, truth versus loyalty, short-term versus long-term, and justice versus mercy. Pick one of the paradigms below, and answer the question.

  • Is it right to use the foreign-made fire pump because others were not available in order to provide fire protection so the warehouse could re-open and the workers could go back to work?  -OR-
  • Do you believe using the fire pump dilemma was a right versus wrong action based on your own values, professional ethics, and institutional values?

For this assignment, you will write a two-page narrative (one page per section) supporting your positions. You must have a title page and references page. An abstract is not required. You may use information from reputable, reliable journal articles, case studies, scholarly papers, and other sources that you feel are pertinent. You should use at least three sources, one of which must be your textbook. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations following proper APA style.

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Environmental Safety Management

September 18, 2025/in General Questions /by Besttutor

1. Calculate a t-test for the following scenario. An engineer is designing a stationary parts bin at a work table and considers using an established functional grip reach of 29.55 inches taken from the overall population mean, which was published in a textbook. However, the individuals who work in the facility represent a demographic that the engineer has noticed to be a bit small in stature. She decides to take a small sample to test her theory and randomly selects seven individuals and measures their reach. She comes up with the following data: 27.87, 29.49, 28.34, 28.20, 29.00, 29.56, 27.95 (inches). Calculate a mean and sample standard deviation, and use these values to perform a t-test on this data. Report all of these values. Also, discuss the concept of the p value and whether the data was significantly different from the population mean. Discuss whether the engineer was correct in assuming the reach of the worker population may be less than the population mean.
Your response should be at least 75 words in length.

2. A review of 200 days-away-from-work injuries for a large, multi-facility corporation was conducted, and it was determined that 18 of them were due to lower back injuries. Only 14.3 were expected under normal conditions. The rest of the injuries were due to other causes where 185.7 were expected. What is the chi-square value? Discuss whether there was a significant difference in observed data vs. the expected data. Also, discuss how the process of hypothesis testing might prove helpful to the safety professional.

Summary of the data:

Observed data: 18 lower back injuries and 182 other injuries

Expected: 14.3 lower back injuries and 185.7 other injuries

Your response should be at least 200 words in length.

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Solenoids, Relays, And Motors

September 18, 2025/in General Questions /by Besttutor

Questions 1–25:

Select the best answer to each question.

1. An electromagnet becomes stronger when the

A. current through the magnetizing coil is increased.

B. core of the magnet is removed.

C. size of wire in the coil is increased.

D. number of turns in the coil is reduced.

2. The purpose of the shading coil in some appliance motors is to

A. increase the current flow through the rotor.

B. cause imbalance in the magnetic field.

C. place more weight on one pole.

D. strengthen the iron form of the motor.

3. The rotor in a shaded-pole motor consists of

A. coils energized by alternating current. C. a permanent magnet.

B. a short-circuited loop of copper wire. D. an iron cylinder.

4. Why does a shaded-pole motor run at a constant speed?

A. The lines of force do not change direction.

B. The current through the rotor circuit is constant.

C. The inertia of the load is at a minimum.

D. The frequency of the applied voltage is constant.

5. What will happen if you place too many washers on the end of a shaded-pole motor shaft?

A. The motor will become noisy. C. The bearings will become too heavy.

B. The rotor will jam. D. The shaft will loosen.

6. A shaded-pole motor coil will have a resistance of approximately

A. 2 to 4 ohms. C. 15 to 40 ohms.

B. 5 to 10 ohms. D. 100 to 200 ohms.

7. The device which disconnects the start winding in some split-phase motor circuits after a preset speed is obtained is the

A. thermostat. C. brush spring.

B. commutator. D. relay.

8. It is essential for a relay energized by alternating current to have

A. many turns of small wire.

B. a laminated core and a shading coil.

C. high resistance and light weight.

D. double-pole double-throw contacts.

9. Which one of the following statements is true of a split-phase motor when it is starting?

A. The speed is high. C. The current is low.

B. The torque is high. D. The voltage is low.

10. An important difference between a universal and a split-phase motor is that the split-phase motor has

A. two brushes attached to the stator.

B. a single coil formed on the rotor.

C. two windings on the stator.

D. an armature with a commutator.

11. The function of a start winding in a split-phase motor is to

A. provide the starting torque.

B. reduce the starting current.

C. decrease the strength of the magnetic field.

D. improve the steady running at full speed.

12. Which one of the following parts of a universal motor does not move?

A. The armature C. The shaft

B. The field coil D. The commutator

13. A universal motor uses brushes made of

A. steel. C. copper.

B. brass. D. carbon.

14. Why should you not use emery cloth for polishing the commutator of an appliance motor?

A. It wears the surface too much.

B. Its dust conducts electricity.

C. It fails to remove oily, discolored spots.

D. Its material reacts chemically with copper.

15. The commutator of a universal motor connects each armature coil to

A. the rotor. C. the gearbox.

B. the shaft. D. a brush.

16. The part you should check first when you are servicing a sparking universal motor is the

A. commutator. C. brushes.

B. armature. D. field windings.

17. The range of motion for most pull-type solenoids is approximately

A. 50 mm. (2 in.) C. 3.0 cm. (1.25 in.)

B. 2.5 cm. (1 in.) D. 3.5 cm. (1.5 in.)

18. In a solenoid valve system, if the voltage on the coil is 118 VAC and a continuity test of the solenoid’s coil measures 80 ohms, yet the solenoid will not allow water flow, the most likely cause of failure is a

A. broken spring. C. faulty coil.

B. stuck plunger. D. cracked disk.

19. If, when a relay is energized, you measure 0.05 VAC across a set of normally open contacts, the

A. relay is operating properly. C. contacts must be pitted.

B. contacts must be burnt. D. coil is open.

20. If a shaded-pole motor is chattering or buzzing while it is turning, the problem is most likely caused by

A. an open shading pole. C. a shorted rotor winding.

B. a faulty coil. D. a faulty or worn bearing.

21. The centrifugal switch contacts on a split-phase motor will open when the motor reaches what percentage of full speed?

A. 20% C. 70%

B. 50% D. 90%

22. What will be the normal rotating speed in RPM for a split-phase motor with six poles covered by each run winding?

A. 900 C. 2400

B. 1200 D. 3600

23. The calculated speed of a four-pole split-phase motor is 1800 RPM. However, if you measure the shaft speed, you will find it to be 1725 RPM. What causes this loss of rotational speed?

A. Counter electromagnet force C. Centrifugal mechanism loading

B. Magnetic slip D. Power line frequency changes

24. Which one of the following is NOT a method of universal motor speed control?

A. Tapped field windings with a switch selector.

B. Varying the voltage using semiconductor devices.

C. Dynamic braking of the motor’s shaft.

D. Using an adjustable centrifugal switch in parallel with a resistor.

25. If you need to disassemble a permanent-magnet motor, you should always

A. avoid match marking the case for fear of loosening the magnets.

B. replace the bearings since the case is open.

C. pull the armature out of the case.

 

D. pull the case from the armature which is held in a vise.

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https://getspsshelp.com/wp-content/uploads/2024/12/logo-8.webp 0 0 Besttutor https://getspsshelp.com/wp-content/uploads/2024/12/logo-8.webp Besttutor2025-09-18 04:37:472025-09-18 04:37:47Solenoids, Relays, And Motors
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