Question

post - test
for situations where sounds of 105 decibels or more will be present for 8 hours, which of the following ear protection items must be used?
a. earplugs
b. earmuffs
c. both earplugs and earmuffs
d. neither earplugs nor earmuffs

Explanation:

When sounds of 105 decibels or more are present for 8 hours, the most effective protection is to use both earplugs and earmuffs for maximum noise - reduction.

Answer:

C. Both earplugs and earmuffs