COMPREHENSIVE QUESTIONS AND
SOLUTIONS GRADED A+
◉ Class B fire extinguisher. Answer: Red Square symbol. Flammable
or combustible liquids, flammable gases and greases. Remember by
B=barrel
◉ Class C fire extinguisher. Answer: Blue circle symbol. Energized
electrical equipment. Remember by C=circuit
◉ Class D extinguisher. Answer: Yellow star symbol. Fire in certain
combustible metals, such as magnesium, titanium, zirconium,
sodium and potassium.
◉ For operating a fire extinguisher remember the acronym PASS..
Answer: P=pull pin, A=aim at the base of the fire, S=squeeze the
handle, S=sweep the extinguisher from side to side.
◉ Most extinguishers have a stream range of:. Answer: 5-20 feet
◉ There are currently over how many different haz mat materials in
the US?. Answer: 75,000
, ◉ DOT estimates that what percent of all commercial cargo is haz
mat materials.. Answer: 10%
◉ Estimated that how many tons of haz mat materials enter the NC
annually?. Answer: 2 millions tons
◉ NC ranks what number in the US for total tonnage?. Answer: 7th
◉ Injuries to volunteer firefighters?. Answer: 10%
◉ Injuries to professional firefighters?. Answer: 10%
◉ Injuries to unknown responders?. Answer: 30%
◉ Injuries to police officers?. Answer: 50%
◉ Who is responsible for enforcing DOT regulations?. Answer:
NCSHP
◉ What regulates response levels/training?. Answer: OSHA 29 CFR
1910.120