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Volume 2 > 5- Unit review Exercises > Flashcards

5- Unit review Exercises Flashcards

1
Q

Upon conducting a noise survey of an Air Force (AF) industrial workplace, identifying
concerns, and developing questions about noise characteristics on a new piece of equipment,
who would you consult for information on this noise source?
a. Wing safety.
b. Aerospace medicine squadron commander.
c. Environmental Safety and Occupational Health (ESOH) council.
d. United States Air Force School of Aerospace Medicine (USAFSAM).

A

d. United States Air Force School of Aerospace Medicine (USAFSAM).

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2
Q

Who is responsible for the proper fitting of hearing protection devices (HPD)?
a. Wing safety.
b. Public health (PH).
c. Workplace supervisor.
d. Bioenvironmental engineering (BE).

A

b. Public health (PH).

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3
Q

Which office is responsible for conducting noise surveys and dosimetry?
a. Public health (PH).
b. Wing safety.
c. Bioenvironmental engineering (BE).
d. United States Air Force School of Aerospace Medicine (USAFSAM).

A

c. Bioenvironmental engineering (BE)

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4
Q

The distance from one point of a sound wave to an identical point on the next wave is
known as the
a. velocity.
b. amplitude.
c. frequency.
d. wavelength.

A

d. wavelength

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5
Q

The amount of sound power per unit area is known as sound
a. wave.
b. intensity.
c. weighting.
d. power level.

A

b. intensity

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6
Q

The characteristic of sound that we measure and report when quantifying sound is
called the sound
a. weightings.
b. intensity.
c. pressure.
d. power.

A

c. pressure

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7
Q

What weighting is used to measure sound when assessing hazardous noise?
a. A-weighting.
b. B-weighting.
c. C-weighting.
d. Flat weighting.

A

a. A-weighting

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8
Q

Whole body effects are also known as
a. non-auditory effects.
b. auditory effects.
c. threshold shifts.
d. hearing effects.

A

a. non-auditory effects

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9
Q

On what two factors are hazardous noise exposure limits based?
a. Auditory and non-auditory effects.
b. Sound levels and duration of exposure.
c. Control methods available and sound levels.
d. Number of workers and control methods available.

A

b. Sound levels and duration of exposure

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10
Q

What type of survey is used to classify whether a particular piece of noise-producing
equipment exceeds the criterion level of 85 A-weighted decibels (dB[A]) and could present a
potential exposure hazard to workers?
a. Noise source.
b. Noise dosimetry.
c. Worker exposure.
d. Hazardous noise area.

A

a. Noise source

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11
Q

What sound level meter response time would you select to determine the average noise
levels for industrial type operations and when taking Occupational Safety and Health
Administration (OSHA) compliance measurements?
a. Fast.
b. Slow.
c. Impulse.
d. Moderate.

A

b. Slow

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12
Q

When performing a noise source survey, at what weighting and response time should
you set your sound level meter?
a. Flat, medium response.
b. C-weighting, fast response.
c. A-weighting, fast response.
d. A-weighting, slow response.

A

d. A-weighting, slow response

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13
Q

What environmental factors may affect the performance of noise measurement
instruments and their readings?
a. Wind chill index, altitude, density, and humidity.
b. Wind chill index, temperature, humidity, and barometric pressure.
c. Temperature, humidity, atmospheric pressure, and magnetic fields.
d. Density, wet bulb globe barometer, moisture, and atmospheric pressure.

A

c. Temperature, humidity, atmospheric pressure, and magnetic fields

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14
Q

At what angle to the sound source must you hold a random incidence microphone when
collecting sound level readings?
a. 0 degrees.
b. 45 degrees.
c. 70 degrees.
d. 90 degrees.

A

c. 70 degrees

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15
Q

What can be used to evaluate the whole body effects of sound?
a. A noise dosimeter.
b. An audiometric booth.
c. An octave band analysis.
d. An acoustic trauma meter.

A

c. An octave band analysis.

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16
Q

What parameters must you set the octave band analyzer before performing the octave
band survey?
a. Z-weighting, fast, sound pressure level (SPL).
b. C-weighting, slow, impulse.
c. Z-weighting, slow, impulse.
d. A-weighting, fast, SPL.

A

a. Z-weighting, fast, sound pressure level (SPL).

17
Q

How often are audiometric test booths monitored when all measurements taken are
within the Air Force (AF) criteria?
a. Monthly.
b. Annually.
c. Quarterly.
d. Bi-annually.

A

b. Annually

18
Q

At what exchange rate in decibels (dB) should a noise dosimeter be set for
measurements to be compared to Air Force (AF) standards?
a. 1 dB.
b. 3 dB.
c. 80 dB.
d. 85 dB.

A

b. 3 dB.

19
Q

Which is the conversion needed by noise dosimeters that indicate the daily dose as a
percentage?
a. Compliance factor.
b. Average daily factor.
c. Time weighted average.
d. Daily equivalent sound level.

A

d. Daily equivalent sound level.

20
Q

What type of noise control should be considered first?
a. Path.
b. Source.
c. Surface.
d. Receiver.

A

b. Source.

21
Q

What type of machine treatment control at the source is the most direct method used to
reduce noise hazards associated with equipment vibration?
a. Isolate the source.
b. Reduce the driving force.
c. Build a barrier to enclose the source.
d. Move the worker away from the source.

A

b. Reduce the driving force.

22
Q

How is attenuation estimated to combine the noise reduction rating (NRR) for earplugs
and earmuffs worn together?
a. Subtract 3 decibels (dB) from the highest NRR of the plug or earmuff.
b. Subtract 10 dB from the combined NRR of the plugs and earmuffs.
c. Add 3 dB to the highest NRR of the plug or earmuff.
d. Add the two NRRs together.

A

c. Add 3 dB to the highest NRR of the plug or earmuff.

23
Q

What occupational illness gradually develops from chronic exposure to poor ergonomic
conditions in the workplace?
a. Ergonomic injury disorder.
b. Musculoskeletal injury disorder.
c. Workplace occupational disorder.
d. Work-related musculoskeletal disorder (WMSD).

A

d. Work-related musculoskeletal disorder (WMSD).

24
Q

How can the presence of ergonomic risk factors affect the likelihood of work-related
musculoskeletal disorders (WMSD)?
a. Ensuring.
b. Reducing.
c. Elevating.
d. Eliminating.

A

c. Elevating.

25
Q

What is the first step in performing an ergonomic assessment?
a. Gather information about the work place.
b. Know how many workers are employed in each job.
c. Establish the characteristics of the work force (i.e., gender and age).
d. Determine if there are opportunities for workers to rotate between jobs.

A

a. Gather information about the work place.

26
Q

Which type of ergonomic control is implementing a preventive maintenance (PM)
program for equipment?
a. Process.
b. Engineering.
c. Administrative.
d. Personal protective equipment (PPE).

A

c. Administrative.

27
Q

What would be considered an indicator of long-term ergonomic hazard control success?
a. Providing a safe and healthy workplace.
b. Redesign of workplace conditions and processes.
c. Implementing recommended controls and procedures.
d. Reductions in musculoskeletal disorder incidence rates.

A

d. Reductions in musculoskeletal disorder incidence rates.

27
Q

Reversible freezing of superficial skin layers usually marked by numbness, whiteness of
the skin, and possible itching or pain is known as
a. frostnip.
b. frostbite.
c. chilblain.
d. hypothermia.

A

a. frostnip.

28
Q

Provided with the fighter index of thermal stress (FITS) zone, which office is
responsible for determining the zone applicability within the aircrew working environment
and provide appropriate warnings to the aircrew?
a. Bioenvironmental engineering (BE).
b. Meteorological/weather staff.
c. Squadron operations flight.
d. Public health (PH).

A

c. Squadron operations flight.

29
Q

Which office is responsible for the determination of wind chill index zones and
notifying the installation command post of the resulting frostbite risk level (FRL)?
a. Public Health (PH).
b. Squadron operation flight.
c. Meteorological/weather staff.
d. Bioenvironmental engineering (BE).

A

d. Bioenvironmental engineering (BE).

30
Q

The thermal components used to assess heat stress are air temperature,
a. humidity, and air speed.
b. air speed, and radiant heat.
c. humidity, air speed, and radiant heat.
d. barometric pressure, humidity, and air speed.

A

c. humidity, air speed, and radiant heat.

31
Q

Which is an important precaution with the black globe thermometer before the
measurements are taken?
a. Unshielded from radiant heat and wetted with distilled water.
b. Exposed for 25 minutes before reading.
c. Unshielded from radiant heat.
d. Shielded from radiant heat.

A

b. Exposed for 25 minutes before reading.

32
Q

When calculating a wet bulb globe temperature (WBGT) index, which situation
requires the formula that does not use the dry bulb temperature?
a. Indoors with solar load.
b. Outdoor with solar load.
c. Indoors/outdoors with solar load.
d. Indoors/outdoors without solar load.

A

d. Indoors/outdoors without solar load.

33
Q

What is the hierarchy of thermal stress controls?
a. Engineering, administrative, and personal protective equipment (PPE).
b. Engineering, PPE, and administrative.
c. Administrative, engineering, and PPE.
d. PPE, administrative, and engineering.

A

a. Engineering, administrative, and personal protective equipment (PPE).

34
Q

What type of administrative control includes a schedule of increasing exposure and
occurs during the first 10 to 14 days of heat exposure?
a. Pace of work.
b. Acclimatization.
c. Personal monitoring.
d. Scheduling of work.

A

b. Acclimatization.

35
Q

What illnesses can Airmen potentially suffer from when working hard while wearing
the chemical protective over garment (CPO) with heavy, cold weather clothing?
a. Cold stress.
b. Heat stress.
c. Hypothermia.
d. Heat exhaustion.

A

d. Heat exhaustion.

Volume 2 (5 decks)

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