RESPIRATORY PROTECTION
What does HEPA stand for?
High Efficiency Particulate Air
The temporary gradual adaptation of the body to work in the heat
Acclimatization
The term Hertz (Hz) can best be described as
a) The distance traveled by a sound wave in one sound cycle
b) 3 Sound pressure cycles per minute
c) A car rental company
d) Threshold of pain
a) The distance traveled by a sound wave in one sound cycle.
The emergency Wildfire Smoke Standard applies to these two types of workers who may be exposed to wildfire smoke
a) Indoor workers
b) Outdoor workers
c) Both a and b
d) Workers with pre-existing conditions
c) Both a and b
This term refers to the use of chemicals to kill germs on surfaces
Disinfection
Name the two classes of respirators?
Air Purifying Respirators, Supplied Air Respirators
Heat index is the combination of air temperature and
a) Wind speed
b) % Relative humidity
c) Body temperature
d) Particulate matter
b) % Relative humidity
A young person's hearing has been typically quantified to fall between:
a) 2000 Hz to 4000 Hz.
b) 12,000 Hz to 50,000 Hz.
c) 20 Hz to 20,000 Hz.
d) All young people are hearing impaired.
c) 20 Hz to 20,000 Hz
These microscopic particles can remain suspended in the air for long periods of time and penetrate deep into the lungs, and are considered the principal pollutant of concern from wildfire smoke
PM2.5
What is the incubation period for COVID-19?
2-14 Days
The Assigned Protection Factor for a full face powered air purifying respirator is?
1,000
Under the Heat Illness Prevention Standard, employers are required to provide workers with water, shade, rest breaks, and training
a) True
b) False
True
In the process of hearing, the inner ear primarily:
a) Modifies the acoustic wave.
b) Converts/amplifies the modified acoustic wave.
c) Increases sound pressure levels to "11"
d) Transforms mechanical movement of the wave into nerve impulses which will travel to the brain.
d) Transforms mechanical movement of the wave into nerve impulses which will travel to the brain.
A daily measurement of local air pollution and potential associated health effects
Air Quality Index
What California county has the highest number of both COVID cases and deaths?
Los Angeles County
What are the three mechanisms a filter element uses to trap dusts and particulates?
Impaction, Interception, Diffusion
Under the Heat Illness Prevention Standard, access to drinking water must be
a) Made available and water sources are at the employers’ discretion
b) Made available and relatively inexpensive to employees
c) Made available at certain intervals throughout the day
d) Potable, and readily available and accessible for consumption
d) Potable, and readily available and accessible for consumption
The SPL which requires employers to implement an effective hearing conservation program is:
a) 8-Hour TWA of 90 dBA.
b) 8-Hour TWA of 85 dBA
c) 8-Hour TWA of 88 dBA
d) 8-Hour TWA of 80 dBA.
b) 8-Hour TWA of 85 dBA
Under the Wildfire Smoke Standard, employers must protect workers from wildfire smoke when the current AQI for PM2.5 is 151 or greater through work modifications by
a) Providing adequate water and shade
b) Providing enclosed structures with filtered air, relocating work, or adjusting work schedules
c) Practicing yoga to help workers manage their breathing techniques
b) Providing enclosed structures with filtered air, relocating work, or adjusting work schedules
What Cal/OSHA standard applies if new cleaning or disinfecting chemicals are introduced to the workplace?
Hazard Communication Standard
What criteria must be satisfied before using an
Air Purifying Respirator?
Oxygen levels, Chemical ID, Chemical concentration, Fit testing, Warning properties, Training
Acclimatization is NOT required under the proposed Indoor Heat Illness Prevention Standard
a) True
b) False
b) False
According to 8 CCR 5095 Appendix E, you can ascribe an actual NRR of ________ to a pair of disposable ear plugs with an NRR of 33 dBA
a) 33 dBA
b) 30 dBA
c) 33 dBA - 7 dB = 26 dBA
d) 16.5 dBA
c) 33 dBA - 7 dB = 26 dBA
Under voluntary respirator use, employers are NOT required to provide workers with any information on its use and limitation
a) True
b) False
b) False
Name an example of an engineering control to help prevent the spread of coronavirus
Increased ventilation
Use of barriers or partitions
Restricting access to the worksite