Volume 2: unit 5

Question 1

Upon conducting a noise survey of an 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?

Answer 1

United States Air Force of Aerospace Medicine (USAFSAM)

Question 1

Who is responsible for the proper fitting of hearing protection devices (HPD)?

Answer 1

Public Health

Question 1

Which office is responsible for conducting noise surveys and dosimetry?

Answer 1

Bioenvironmental engineering (BE)

Question 1

The distance from one point of a sound wave to an identical point on the next wave is known as the ______

Answer 1

Wavelength

Question 1

The amount of sound power per unit area is known as sound ______

Answer 1

Intensity

Question 1

The characteristic of sound that we measure and report when quantifying sound is called the sound ______

Answer 1

Pressure

Question 1

What weighting is used to measure sound when assessing hazardous noise?

Answer 1

A-weighting

Question 1

Whole body effects are also known as ______

Answer 1

non-auditory effects

Question 1

On what two factors are hazardous noise exposure limits based?

Answer 1

Sound Levels and Duration of exposure

Question 1

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 and could present an exposure hazard to workers?

Answer 1

Noise Source Survey

Question 2

When performing a noise source survey, at what weighting and response time should you set your sound level meter?

Answer 2

A-weighting and Slow response

Question 2

What sound level meter response time would you select to determine the average noise levels for industrial type operations and when taking OSHA compliance measurements?

Answer 2

Slow response

Question 3

At what angle to the sound source must you hold a random incidence microphone when collecting sound level readings?

Answer 3

70 degrees

Question 3

What can be used to evaluate the whole-body effects of sound?

Answer 3

An octave band analysis

Question 4

What environmental factors may affect the performance of noise measurement instruments and their readings?

Answer 4

Temperature, humidity, atmospheric pressure, and magnetic fields

Question 5

What parameters must you set the octave band analyzer before performing the octave band survey?

Answer 5

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

Question 6

How often are audiometric test booths monitored when all measurements taken are within the Air Force (AF) criteria?

Answer 6

Annually

Question 7

At what exchange rate in decibels (dB) should a noise dosimeter be set for measurements to be compared to Air Force (AF) standards?

Answer 7

3 dB

Question 7

Which is the conversion needed by noise dosimeters that indicate the daily dose as a percentage?

Answer 7

Daily equivalent sound level

Question 8

What type of noise control should be considered first?

Answer 8

Source

Question 9

How is attenuation estimated to combine the noise reduction rating (NRR) for earplugs and earmuffs worn together?

Answer 9

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

Question 9

What type of machine treatment control at the source is the most direct method used to reduce noise hazards associated with equipment vibration?

Answer 9

Reduce the driving force

Question 10

What occupational illness gradually develops from chronic exposure to poor ergonomic conditions in the workplace?

Answer 10

Work-related musculoskeletal disorder

Question 11

How can the presence of ergonomic risk factors affect the likelihood of work-related musculoskeletal disorders (WMSD)?

Answer 11

Elevating

Question 12

What is the first step in performing an ergonomic assessment?

Answer 12

Gather information about the workplace

Question 13

Which type of ergonomic control is implementing a preventive maintenance (PM) program for equipment?

Answer 13

Administrative

Question 14

What would be considered an indicator of long-term ergonomic hazard control success?

Answer 14

Reductions in musculoskeletal disorder rates

Question 15

Reversible freezing of superficial skin layers usually marked by numbness, whiteness of the skin, and possible itching or pain is known as ________

Answer 15

Frostnip

Question 16

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?

Answer 16

Squadron operations flight

Question 17

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)?

Answer 17

Bioenvironmental engineering (BE)

Question 18

The thermal components used to assess heat stress are air temperature, _______

Answer 18

Humidity, air speed, and radiant heat

Question 19

What is an important precaution with the black globe thermometer before the measurements are taken?

Answer 19

Expose for 25 minutes before reading

Question 20

When calculating a wet bulb globe temperature (WBGT) index, which situation requires the formula that does not use the dry bulb temperature?

Answer 20

Indoors/outdoors without solar load

Question 21

What type of administrative control includes a schedule of increasing exposure and occurs during the first 10 to 14 days of heat exposure?

Answer 21

Acclimatization

Question 22

What is the hierarchy of thermal stress controls?

Answer 22

Engineering, administrative, PPE

Question 23

What illnesses can Airmen potentially suffer from when working hard while wearing the chemical protective over garment (CPO) with heavy, cold weather clothing?

Answer 23

Heat exhaustion