Professional Writers
We assemble our team by selectively choosing highly skilled writers, each boasting specialized knowledge in specific subject areas and a robust background in academic writing
Order For Similar Custom Papers & Assignment Help Services
Fill the order form details - writing instructions guides, and get your paper done.
Posted: March 4th, 2021
Explain why a logarithmic scale is used to describe and compare sound levels.
Assignment 3
Due: 20 October
Value: 20%
1. Explain why a logarithmic scale is used to describe and compare sound levels.
[10 marks]
2. Noise calculations
a) Four different machines in a factory have noise levels of 88dB, 90dB, 90dB and 96dB respectively. What is the overall noise level? If the loudest machine was taken out, what would the resulting overall noise level be for the 3 remaining machines?
b) A group of workers are exposed to varying noise levels as different machines in their workplace are used. Determine:
i. The Total Daily Noise Exposure (Pa2.h) ii. The Noise Exposure Level (LAeq.8h) iii. The class of hearing protection that should be used, if appropriate.
Time Sound level dB(A)
8.00 am – 10.00 am
10.00 am – 10.30 am
10.30 am – 1.00 pm
1.00 pm – 1.30 pm
1.30 pm – 2.00 pm
2.00 pm – 4.00 pm 85
83
88
80
97
92
[15 marks]
3. The most important effect of excessive noise exposure in the workplace is the risk of noiseinduced hearing loss. However, there may be other effects of noise in the workplace. What might some of these be? Describe and discuss.
[20 marks]
4. For two (2) different types of non-ionising radiation, outline some control strategies for a specific workplace exposure to each type, and group these according to the control hierarchy.
[15 marks]
5. Ace my homework – Write short reports on two biological hazards which workers may be exposed to in specific workplace settings. You should write about one bacterial infection and one viral infection.
You should give a brief description of the biological agent then use the following headings:
• occupational setting and workers at risk
• routes of transmission and infective process
• prevention and control measures
Your reports should not exceed two pages for each substance. You should summarise and explain the key information clearly and simply. Reference your sources but do not attach this material.
[40 marks]
Total: 100 marks
Why choose us
You Want Quality and That’s What We Deliver
Discounted Prices
Our service is committed to delivering the finest writers at the most competitive rates, ensuring that affordability is balanced with uncompromising quality. Our pricing strategy is designed to be both fair and reasonable, standing out favorably against other writing services in the market.
AI & Plagiarism-Free
Rest assured, you'll never receive a product tainted by plagiarism or AI-generated content. Each paper is research-written by human writers, followed by a rigorous scanning process of the final draft before it's delivered to you, ensuring the content is entirely original and maintaining our unwavering commitment to providing plagiarism-free work.
How it works
When you decide to place an order with Nurscola, here is what happens: