Firefighter HazMat 4th Set UPDATED 2026 Complete
Hazardous Materials Study Guide & Practice Questions for
Fire Academy and Certification Prep (GUARANTEED PASS)
When considering using an overflow dam, the material needing to be contained
should have a specific gravity of:
Select one:
a. less than 1.0
B. 1.0
C. greater than 1.0
D. less than 0.1 - VERIFIED ANSWER✅ C. greater than 1.0
The _____ phase includes the completion of records necessary to document the
incident.
Select one:
a.recovery
b. index
c. after-action
d. planning - VERIFIED ANSWER✅ A. Recovery
,___ can be used to soak up liquid hazardous materials and can be easily stored on
an
apparatus while taking up minimal space.
Select one:
a. Spill pads
b. Spill booms
c. Neutralization kit
d. Hay bales - VERIFIED ANSWER✅ A. Spill pads
In some cases, the process of __ can produce heat.
Select one:
a. retention
B. diking
c. vapor dispersion
d. adsorption - VERIFIED ANSWER✅ d. adsorption
__is a containment technique that is used when liquid is flowing in a natural
channel or
depression and its progress can be stopped by blocking the channel.
Select one:
,•a.Diversion
b.Dispersion
c. Damming
d.Dilution - VERIFIED ANSWER✅ c. Damming
__ is is the placement of material to form a barrier that will keep a hazardous
material in liquid form from entering an unwanted area or hold the material in a
specific location.
Select one:
a. Retention
b.Remote valve shutoff
c.Diversion
d. Diking - VERIFIED ANSWER✅ d. Diking
Vapor ___is the process of controlling the vapors or fumes that are given off by
certain
materials, particularly flammable liquids, to prevent ignition.
Select one:
A. Dilution
b.retention
c. dispersion
, d. Supression - VERIFIED ANSWER✅ d. Supression
The application of a(n) ___ agent does not change the chemical properties of the
hazardous material.
Select one:
a. dilution
b. absorbing
c. Deactivating
d. Neutralizing - VERIFIED ANSWER✅ b. absorbing
An acid with a pH of ___ would require a large amount of water for dilution
strategies.
a. 9
b. 3
c. 8
d. 7 - VERIFIED ANSWER✅ B. 3
Which type of transport tanker has shut-off valves located at both ends of the
tank, internal shutoff valves, a rotary gauge depicting product pressure, and top-
mounted vents?
Hazardous Materials Study Guide & Practice Questions for
Fire Academy and Certification Prep (GUARANTEED PASS)
When considering using an overflow dam, the material needing to be contained
should have a specific gravity of:
Select one:
a. less than 1.0
B. 1.0
C. greater than 1.0
D. less than 0.1 - VERIFIED ANSWER✅ C. greater than 1.0
The _____ phase includes the completion of records necessary to document the
incident.
Select one:
a.recovery
b. index
c. after-action
d. planning - VERIFIED ANSWER✅ A. Recovery
,___ can be used to soak up liquid hazardous materials and can be easily stored on
an
apparatus while taking up minimal space.
Select one:
a. Spill pads
b. Spill booms
c. Neutralization kit
d. Hay bales - VERIFIED ANSWER✅ A. Spill pads
In some cases, the process of __ can produce heat.
Select one:
a. retention
B. diking
c. vapor dispersion
d. adsorption - VERIFIED ANSWER✅ d. adsorption
__is a containment technique that is used when liquid is flowing in a natural
channel or
depression and its progress can be stopped by blocking the channel.
Select one:
,•a.Diversion
b.Dispersion
c. Damming
d.Dilution - VERIFIED ANSWER✅ c. Damming
__ is is the placement of material to form a barrier that will keep a hazardous
material in liquid form from entering an unwanted area or hold the material in a
specific location.
Select one:
a. Retention
b.Remote valve shutoff
c.Diversion
d. Diking - VERIFIED ANSWER✅ d. Diking
Vapor ___is the process of controlling the vapors or fumes that are given off by
certain
materials, particularly flammable liquids, to prevent ignition.
Select one:
A. Dilution
b.retention
c. dispersion
, d. Supression - VERIFIED ANSWER✅ d. Supression
The application of a(n) ___ agent does not change the chemical properties of the
hazardous material.
Select one:
a. dilution
b. absorbing
c. Deactivating
d. Neutralizing - VERIFIED ANSWER✅ b. absorbing
An acid with a pH of ___ would require a large amount of water for dilution
strategies.
a. 9
b. 3
c. 8
d. 7 - VERIFIED ANSWER✅ B. 3
Which type of transport tanker has shut-off valves located at both ends of the
tank, internal shutoff valves, a rotary gauge depicting product pressure, and top-
mounted vents?
