Volume 2: unit 5 Flashcards
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?
United States Air Force of Aerospace Medicine (USAFSAM)
Who is responsible for the proper fitting of hearing protection devices (HPD)?
Public Health
Which office is responsible for conducting noise surveys and dosimetry?
Bioenvironmental engineering (BE)
The distance from one point of a sound wave to an identical point on the next wave is known as the ______
Wavelength
The amount of sound power per unit area is known as sound ______
Intensity
The characteristic of sound that we measure and report when quantifying sound is called the sound ______
Pressure
What weighting is used to measure sound when assessing hazardous noise?
A-weighting
Whole body effects are also known as ______
non-auditory effects
On what two factors are hazardous noise exposure limits based?
Sound Levels and Duration of exposure
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?
Noise Source Survey
When performing a noise source survey, at what weighting and response time should you set your sound level meter?
A-weighting and Slow response
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?
Slow response
At what angle to the sound source must you hold a random incidence microphone when collecting sound level readings?
70 degrees
What can be used to evaluate the whole-body effects of sound?
An octave band analysis
What environmental factors may affect the performance of noise measurement instruments and their readings?
Temperature, humidity, atmospheric pressure, and magnetic fields
What parameters must you set the octave band analyzer before performing the octave band survey?
Z-weighting, fast, sound pressure level (SPL)
How often are audiometric test booths monitored when all measurements taken are within the Air Force (AF) criteria?
Annually
At what exchange rate in decibels (dB) should a noise dosimeter be set for measurements to be compared to Air Force (AF) standards?
3 dB
Which is the conversion needed by noise dosimeters that indicate the daily dose as a percentage?
Daily equivalent sound level
What type of noise control should be considered first?
Source
How is attenuation estimated to combine the noise reduction rating (NRR) for earplugs and earmuffs worn together?
Add 3 dB to the highest NRR of the plug or earmuff
What type of machine treatment control at the source is the most direct method used to reduce noise hazards associated with equipment vibration?
Reduce the driving force
What occupational illness gradually develops from chronic exposure to poor ergonomic conditions in the workplace?
Work-related musculoskeletal disorder
How can the presence of ergonomic risk factors affect the likelihood of work-related musculoskeletal disorders (WMSD)?
Elevating
What is the first step in performing an ergonomic assessment?
Gather information about the workplace
Which type of ergonomic control is implementing a preventive maintenance (PM) program for equipment?
Administrative
What would be considered an indicator of long-term ergonomic hazard control success?
Reductions in musculoskeletal disorder rates
Reversible freezing of superficial skin layers usually marked by numbness, whiteness of the skin, and possible itching or pain is known as ________
Frostnip
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?
Squadron operations flight
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)?
Bioenvironmental engineering (BE)
The thermal components used to assess heat stress are air temperature, _______
Humidity, air speed, and radiant heat
What is an important precaution with the black globe thermometer before the measurements are taken?
Expose for 25 minutes before reading
When calculating a wet bulb globe temperature (WBGT) index, which situation requires the formula that does not use the dry bulb temperature?
Indoors/outdoors without solar load
What type of administrative control includes a schedule of increasing exposure and occurs during the first 10 to 14 days of heat exposure?
Acclimatization
What is the hierarchy of thermal stress controls?
Engineering, administrative, PPE
What illnesses can Airmen potentially suffer from when working hard while wearing the chemical protective over garment (CPO) with heavy, cold weather clothing?
Heat exhaustion
