Unit 8 safety | Engineering homework help

 

Unit VIII Project

Read the background and scenario descriptions in Sections I and II of the instructions. Prepare a paper addressing each 

of the subsections of Section III. Make sure you read each section completely and carefully before preparing your paper.

I.

Background

Acme International has a small manufacturing shop that includes two welding stations and a separate paint room. Two 

welders produce small components for automobiles using stainless steel and MIG welding. After grinding has been 

performed in the welding bays, the parts are painted in the paint room. The only ventilation present is a ceiling fan in each

room that is used for general dilution ventilation.

Note: Because of specifications from their cli

ent, substitution is not a viable control method for either the welding or 

painting operations.

An industrial hygienist (IH) recently conducted air monitoring at the facility. In the welding bays, the IH conducted initial

monitoring with a personal sample

collected on each welder and analyzed for hexavalent chromium (Cr

+6

). The results 

showed that time weighted average (TWA) exposures were 6.2 micrograms per cubic meter (μg/m

3

) and 6.6 μg/m

3

. The 

OSHA TWA PEL is 5 μg/m

with an action level of 2.5 μg/m

3

.

MOS 5201, Safety Engineering

3

The paint area uses primer and paint containing benzene, ethyl benzene, toluene, and xylene. Workers in the area also 

use acetone on rags to clean surfaces. One employee was sampled for the entire work shift. A second employee was 

sampled for 15 minutes (S

TEL sample) while cleaning with the acetone and for 15 minutes (STEL sample) while mixing 

the primer and paint. The table below summarizes the results of the sampling, along with the applicable permissible 

exposure limits (PELs) established by OSHA and the

guidelines (threshold limit values or TLVs) published by the 

American Conference of Governmental Industrial Hygienists (AGGIH).

Table 1

Analyte

Sample 

Type

Analytical 

Results

OSHA PEL

ACGIH TLV

TWA

STEL

TWA

STEL

Benzene

TWA

STEL

12 ppm

25 ppm

1 ppm

5 ppm

0.5 ppm

2.5 ppm

Ethyl Benzene

TWA

STEL

20 ppm

35 ppm

100 ppm

NE

20 ppm

NE

Toluene

TWA

STEL

15 ppm

30 ppm

200 ppm

500 ppm 

(10 min.)

20 ppm

NE

Xylene

TWA

STEL

24 ppm

36 ppm

100 ppm

NE

100 ppm

150 ppm

Acetone

TWA

STEL

14 ppm

124 ppm

1000 ppm

NE

200 ppm

500 ppm

ppm = parts per million

NE = None Established

II.

The Scenario

You have been hired by Acme International to evaluate the work areas, recommend controls, design the controls, and 

install the controls. 

III.

Assignment

1.

Analyze the hazards 

in both areas of the facility using one of the methods described in Chapter 3 of the 

textbook. You should identify at least two hazards in each area (welding and painting).

2.

Perform a risk assessment on at least two hazards in each area using the 4X4 matrix

in Table 17

3 of the 

textbook.

3.

Prioritize the need for controls for the hazards you selected based on the results of the risk assessment.

4.

Using the hierarchy of engineering controls listed on page 420 of the textbook, recommend a control 

method for each hazard that you believe would be the most effective in reducing risk to an acceptable level. 

Use the 4X4 matrix to show the reduction in risk for each hazard. 

Note: At least one control method must be 

a local exhaust ventilation (LEV) system.

5.

For the LEV, specify the hood configuration, a recommended capture velocity, and a recommendation for 

treatment of the exhaust stream. Explain why you made the choices and support your decisions with at least one reference other than the text.

6.

Discuss how Prevention through Design could be used to reduce the risks associated with these operations 

if you were hired to design a new facility performing these same activities from scratch.

Prepare your paper in a properly formatted APA document, including a title page, a brief abstract section, the body of the 

paper, and a reference page. The body of your paper must be a minimum of four pages in length and double

spaced (title 

page, abstract, and reference page do not count toward the four

page minimum). You must use your textbook and at least 

one other source.

Calculate your paper price
Pages (550 words)
Approximate price: -

Why Choose Us

Quality Papers

We value our clients. For this reason, we ensure that each paper is written carefully as per the instructions provided by the client. Our editing team also checks all the papers to ensure that they have been completed as per the expectations.

Professional Academic Writers

Over the years, our Acme Homework has managed to secure the most qualified, reliable and experienced team of writers. The company has also ensured continued training and development of the team members to ensure that it keep up with the rising Academic Trends.

Affordable Prices

Our prices are fairly priced in such a way that ensures affordability. Additionally, you can get a free price quotation by clicking on the "Place Order" button.

On-Time delivery

We pay strict attention on deadlines. For this reason, we ensure that all papers are submitted earlier, even before the deadline indicated by the customer. For this reason, the client can go through the work and review everything.

100% Originality

At Essay USA, all papers are plagiarism-free as they are written from scratch. We have taken strict measures to ensure that there is no similarity on all papers and that citations are included as per the standards set.

Customer Support 24/7

Our support team is readily available to provide any guidance/help on our platform at any time of the day/night. Feel free to contact us via the Chat window or support email: support@acmehomework.com.

Try it now!

Calculate the price of your order

We'll send you the first draft for approval by at
Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

Essay USA has stood as the world’s leading custom essay writing services providers. Once you enter all the details in the order form under the place order button, the rest is up to us.

Essays

Essay Writing Services

At Essay USA, we prioritize on all aspects that bring about a good grade such as impeccable grammar, proper structure, zero-plagiarism and conformance to guidelines. Our experienced team of writers will help you completed your essays and other assignments.

Admissions

Admission and Business Papers

Be assured that you’ll definitely get accepted to the Master’s level program at any university once you enter all the details in the order form. We won’t leave you here; we will also help you secure a good position in your aspired workplace by creating an outstanding resume or portfolio once you place an order.

Editing

Editing and Proofreading

Our skilled editing and writing team will help you restructure you paper, paraphrase, correct grammar and replace plagiarized sections on your paper just on time. The service is geared toward eliminating any mistakes and rather enhancing better quality.

Coursework

Technical papers

We have writers in almost all fields including the most technical fields. You don’t have to worry about the complexity of your paper. Simply enter as much details as possible in the place order section.