FIREFIGHTER HAZMAT OPS COMPREHENSIVE ASSESSMENT 2026 FULL QUESTIONS AND ANSWERS EXPERT REVIEWED

FIREFIGHTER HAZMAT OPS
COMPREHENSIVE ASSESSMENT 2026 FULL
QUESTIONS AND ANSWERS EXPERT
REVIEWED

●● A safety data sheet will include information on _____.
Answer: Accident release measures


●● In the United States, chemical safety information can be obtained by
calling _____.
Answer: CHEMTREC


●● Vaporization of ethanol produces a _____.
Answer: Gas


●● The gas state of a substance is sometimes referred to as _____.
Answer: Vapor


●● _____ stress can be heat created by fire or cold generated by
environmental factors or by cryogenics that could cause a container to
breach.
Answer: Thermal

,●● Puncturing a container with a forklift is an example of a _____ stress
that can cause a container to fail.
Answer: Mechanical


●● A substance gives off sufficient flammable vapors to ignite when the
temperature of the substance reaches its _____ because of heat from an
external source or the surrounding environment.
Answer: Flash point


●● A _____ fire involves only the vapor phase and will go out once the
vapor fuel is consumed.
Answer: Flash


●● _____ fuel heated beyond its ignition temperature will ignite without
an external ignition source.
Answer: Only liquid


●● All liquified compressed gas cylinders have a small vapor space
called the _____ above the liquid.
Answer: Headspace


●● Liquids with low flash points typically have _____.
Answer: Higher vapor pressures and higher ignition temperatures

,●● The flash point of _____ is -45°F.
Answer: Gasoline


●● The temperature at which the vapor pressure of a liquid equals the
surrounding atmospheric pressure is its _____ point.
Answer: Boiling


●● The boiling point of water at sea level is _____.
Answer: 212 degrees


●● As the molecular weight of a flammable liquid increases, the _____
decreases.
Answer: Vapor pressure


●● Vapors with a density value of _____ will sink.
Answer: 1.2


●● The vapor density of propane is _____.
Answer: 1.55


●● The specific gravity of water is _____.
Answer: 1.0

, ●● If water is gently applied to a puddle of _____, the water will rise to
the top.
Answer: Carbon disulfide


●● Gasoline spilled into a river will _____.
Answer: Float


●● Water solubility describes _____.
Answer: The ability of a substance to dissolve in water


●● Adding water to _____ will cause violent reactions.
Answer: Concentrated sulfuric acid


●● Water can be used to extinguish fires involving _____.
Answer: Common combustibles


●● The corrosivity of a substance is based on its _____.
Answer: PH


●● A substance with a pH of _____ is considered a strong acid.
Answer: 2