In which atmosphere might the use of an air-purifying respirator be permissible?
a. IDLH conditions
b. Oxygen-deficient atmosphere
c. Atmosphere contaminated with a known substance
d. Suspended dust of unknown composition
Answer: c. Atmosphere contaminated with a known substance
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Which of the following hose-lines is considered the workhorse of the fire service?
A) -inch or -inch hose-line B) Large-diameter hose C) -inch hose-line D) Master stream
A design that increases surface area and enhances evaporation by incorporating an absorbent ma-terial partially submerged in a water reservoir that is surrounded by a heating element best de-scribes what type of humidifier?
a. Bubble b. Wick c. Cascade d. Hygroscopic
Which of the following conditions must be met before payment is made under an indemnity plan?
A. payment of the copayment B. payment of the premium and coinsurance C. payment of the deductible D. payment of premium, deductible, and coinsurance
Salmonella species could be isolated from a ____________________.
Fill in the blank(s) with the appropriate word(s).