Which of the following conditions or sources can lead to loss of hearing? (Select all that apply.)

• A.  Ear infections

• B.  Aging

• C.  Earplugs

• D.  Childhood diseases

• E.  Repeated exposure to

       excessive noise

Hearing loss due to damaged stereocilia is permanent and cannot be repaired with medical treatments.

• A.  True

• B.  False

Noise levels at 85 decibels for an 8-hour TWA is called the "________ level."

• A.  noisy

• B.  action

• C.  decibel danger

• D.  noise reduction

If a hazard can't be eliminated, then ________ solution should be attempted.

• A.  a permanent

• B.  an engineering

• C.  an administrative

An STS could be caused by a number of things, such as a head cold, listening to loud music, or working without ear protection. If an STS is detected, a retest will usually be performed.

• A. True

• B. False

If an employee will be exposed to noise levels that meet or exceed the action level, the employer is required to develop and implement a noise monitoring program.

• A. True

• F. False

Which of the following should be considered when choosing hearing protection? (Select all that apply.)

• A.  If the hearing protection is practical and will not interfere with work

• B.  The color of the hearing protection

• C.  If the NRR is adequate for the noise exposure in the work environment

• D.  If the device fits properly

Which of the following are advantages of earmuffs over earplugs? (Select all that apply.)

• A.  Heavier than earplugs

• B.  Easy to put on and adjust

• C.  Can be uncomfortable if working

       in a hot environment

• D.  Won't irritate the ear canal

Prior to a hearing test, avoid loud noises for ________.

• A.  30 minutes

• B.  2 hours

• C.  14 hours

• D.  24 hours

Which of the following are advantages of earplugs over earmuffs? (Select all that apply.)

• A.  Small, lightweight

• B.  May irritate the ear canal

• C.  Easy to lose

• D.  Inexpensive