Question 4 The time required to develop permanent hearing loss depends on the fo

Question

Question 4 The time required to develop permanent hearing loss depends on the following Noise level Exposure duration. individual susceptibility the source of sound Question 5 Impulsive or impact noise is considered to be those variations in noise levels that involve maxima O At intervals of one per second o At intervals of greater than one per second O At intervals of less than one per second None of the above Question 6 is an unpla 7 is an unplanned event that happened weather it results in loss or not. However

Explanation / Answer

question4

(a)noise level

the louder the sound, the shorter the amount of time it takes to develop permanent hearing loss.

question 5

(c) at intervals of less than one per second.

Impact noise is a sound that occurs as a brief interval. It is a sudden burst of high intensity sound, such as that which results from an explosion or a hammer strike.

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