Unit 2 Noise Survey

Question 1

What is Potential Hazardous Noise

Answer 1

An exposure to steady state noise over a 8 hour TWA exceeding 85 regardless of duration

Question 2

What is Potential Hazardous Noise Area

Answer 2

Exposure to a noise greater than 85 over an 8 hour TWA or a impact over 145dB

Question 3

What is community noise

Answer 3

Military bases, Private neighborhoods and base communities have Noise regulations that very from state to state the level it should be kept at 55dB

Question 4

What is the Criterion Level?

Answer 4

Standard for noise is 85 dB

Question 5

What is Exchange Rate?

Answer 5

The increase or decrease in sound level and corresponding change in allowed exposure time
When sound level increase by 3 time allowed is halved

Question 6

Noise Exposure Limit what is it?

Answer 6

Limits are determined based on sound level and duration. AFI 48-127 provides these limits.

Question 7

Whole Body Effects Noise Exposure Limits

Answer 7

At certain sounds level other organs besides can be affected said limit is No octave or one third may exceed 145 dB

Question 8

Pregnant Workers

Answer 8

A Noise level over 115 dB TWA or peak 155 dB in C weighting could effect the fetus

Question 9

What is a Noise Survey?

Answer 9

A survey used to classify if a noise exceeds sound level 85 dB in accordance with AFI 48-127

Question 10

What is a Worker Exposure Survey?

Answer 10

When the Potential to exceed Noise exposure limits worker exposures shall be evaluated

Question 11

What is a Hazardous Noise Area Survey?

Answer 11

Surveys used to define noise exposure in Hazardous areas or identify a hazardous area noise zone around a certain piece of equipment.