Air Monitoring & Controls/Drum Handling
The content of a drum has not been identified, but you notice a crystallizing material on top. Until identified the drum should be:
a. Treated as shock sensitive
b. Moved from the work area
c. Treated as containing acids
d. Treated as radioactive
a. Treated as shock sensitive
What level of PPE provides some breathing protection and some skin protection?
a. Level A
b. Level B
c. Level C
d. Level D
a. Level C
True or False:
Supplied air respirators, equipped with a 5-minute escape cylinder, are approved for use in IDLH (Immediately Dangerous to Life or Health) atmospheres.
True
Which statement about colorimetric indicator tubes is true?
a. May be used to detect a wide variety of gases and vapors
b. Difficult to operate
c. Very accurate for quantitative results
d. Normally used to give a time-weighted average concentration
a. May be used to detect a wide variety of gases and vapors
Provides maximum breathing and maximum skin protection?
a. Level A
b. Level B
c. Level C
d. Level D
a. Level A
Which type of respirator has the highest protection factor?
a. Powered air purifying (PAPR)
b. Pressure-demand SCBA or airline respirator
c. Half-mask air purifying (not powered)
d. Full-face air purifying (not powered)
b. Pressure-demand SCBA or airline respirator
Which of the following is the EPA’s recommended BEST method of opening an unidentified drum?
a. Elect a member of the Emergency Response team to open it with a bung wrench
b. Wait for the drum to corrode so that you can then test the vapors
c. Use a remote drum opener, while keeping employees at a safe distance
c. Use a remote drum opener, while keeping employees at a safe distance
Provides maximum breathing and SOME skin protection?
a. Level A
b. Level B
c. Level C
d. Level D
b. Level B
A warning bell on a Self Contained Breathing Apparatus (SCBA) sounds if:
a. The regulator has been hooked up improperly
b. Exposure levels are above protection limits provided by the SCBA
c. It is time to switch to the back up air supply
d. About 20-25 % of the air supply is left in the tank
d. About 20-25 % of the air supply is left in the tank
Before entering a small storage shed full of containers of unidentified chemical wastes. Which instrument in conjunction with the radiation monitor is required upon entry?
a. Combustible gas indicator
b. Colorimetric detector tubes (e.g. Drager pump)
c. Photo-ionization detector (e.g. HNu)
d. H2S meter
a. Combustible gas indicator
Regular Tyvek (non-coated) coveralls offer protection against which ONE of the following:
a. Gases and vapors
b. Particulates (dusts, mists, and fumes)
c. Direct dermal contact with liquids
d. IDLH concentrations for skin absorption
b. Particulates (dusts, mists, and fumes)
True or False:
An air purifying respirator may be worn when the amount of oxygen in air is less than 19.5%.
False
True or False:
The LEL sensor found in a CGI (combustible gas indicator) may detect flammable gas and beep when it reaches 10% of the LEL.
True
Permeation and degradation of chemical protective clothing is dependent on:
a. Concentration of chemicals
b. Duration of contact of personal protective equipment with chemicals
c. Type of chemicals
d. All of the above
d. All of the above
In order to wear respiratory protection, a worker must:
a. Have training on the hazards that he/she will be exposed to
b. Have been fit tested
c. Also wear eye protection
d. a and b
d. a and b