HAZMAT AWARENESS PRACTICE
EXAMINATION 2026 QUESTIONS WITH
ANSWERS GRADED A+
◍ Vent and burn is the last option at a Hazardous Materials/WMD scene.
A. True
B. False.
Answer: A. True
◍ A reaction that is associated with over-pressurization of closed containers
and occurs at a rate of one second or less is called a:
A. rapid relief.
B. violent rupture.
C. detonation.
D. spill..
Answer: B. violent rupture.
◍ Back-up personnel should be advised of the incident action plan and
positioned in the zone.
A. hot
B. warm
C. cold
D. emergency.
Answer: C. cold
◍ Self-contained breathing apparatus and supplied air respirators are two types
of:
A. rebreather equipment.
B. air-purification devices.
C. air-filtration devices.
D. atmosphere supplied devices..
, Answer: D. atmosphere supplied devices.
◍ When initiating an Incident Management System at hazardous
materialsincidents, it is important to remember that an individual's span of
control is:
A. 1 to 5.
B. 3 to 9.
C. 2 to 7.
D. 5 to 10..
Answer: C. 2 to 7.
◍ In the UN/DOT Marking System, Hazard Class 3 includes:
A. black powder.
B. gasoline.
C. ammonium nitrate.
D. magnesium..
Answer: B. gasoline.
◍ Determining whether a vapor will rise or fall is commonly referred to as:
A. vapor dispersion.
B. vapor density.
C. vaporization.
D. specific gravity..
Answer: B. vapor density.
◍ Directions: Read the following statements regarding remote shutoffs
andselect your answers from choices A through
D. Statement 1: Remote shutoffs are usually well marked and in an
easy-to-find location.Statement 2: Remote shutoffs in fixed facilities are
typically located near the entrance.Statement 3: On vehicles, the two most
common locations for remote shutoffs are at the valve controls and behind
the driver's door.
A. Statement 1 is true; statements 2 and 3 are false.
B. Statements 1 and 2 are true; statement 3 is false.
C. Statements 2 and 3 are true; statement 1 is false.
, D. All three statements are true..
Answer: D. All three statements are true.
◍ The products that IM 101 intermodal portable tanks typically carry are:
A. molten sulfur.
B. flammable gases.
C. flammable liquids.
D. radioactive materials..
Answer: C. flammable liquids.
◍ What would be the likely result of allowing a contaminated individual to
leave the hot zone without being decontaminated?
A. Nothing. All contaminates would likely be gone after the individual
exitedthe hot zone.
B. The contaminates would likely be transferred to other personnel or
equipment resulting in secondary contamination.
C. The individual would be treated for exposure but is no risk to others.
D. There would be direct contamination of the warm zone..
Answer: B. The contaminates would likely be transferred to other personnel
or equipment resulting in secondary contamination.
◍ One of the symptoms of poisonous gases such as chlorine and
anhydrousammonia is severe irritation to the __________ system.
A. respiratory
B. skeletal
C. cardiac
D. muscular.
Answer: A. respiratory
◍ When applying water to a highway tanker or railway tank car with
flameimpingement, the minimum amount of water to be used is __________
gpm at the point of flameimpingement.
A. 500
B. 1,000
C. 250
, D. 2,000.
Answer: A. 500
◍ Neutron radiation is commonly used in commercial and industrial
operations.
A. True
B. False.
Answer: B. False
◍ The physical destruction or decomposition of chemical protective clothing
(CPC) by a chemical action is called:
A. degradation.
B. breakthrough time.
C. penetration.
D. permeation..
Answer: A. degradation.
◍ Directions: Read the following statements regarding safety briefings prior
toallowing personnel to work at a hazardous material incident and select
your answer from choices A through
D. Statement 1: Pre-incident survey information is vital to establishing
briefing items.Statement 2: MSDS information can be an important part of
the briefing process.Statement 3: Risk/benefit assessment is the most
important item to be considered.
A. Statement 1 is true; statements 2 and 3 are false.
B. Statements 1 and 2 are true; statement 3 is false.
C. Statement 1 is false; statements 2 and 3 are true.
D. All three statements are true..
Answer: D. All three statements are true.
◍ When a pressurized tanker fails violently due to over-pressurizing, the
phenomenon is called:
A. detonation.
B. SAO
T. C. BLEV
EXAMINATION 2026 QUESTIONS WITH
ANSWERS GRADED A+
◍ Vent and burn is the last option at a Hazardous Materials/WMD scene.
A. True
B. False.
Answer: A. True
◍ A reaction that is associated with over-pressurization of closed containers
and occurs at a rate of one second or less is called a:
A. rapid relief.
B. violent rupture.
C. detonation.
D. spill..
Answer: B. violent rupture.
◍ Back-up personnel should be advised of the incident action plan and
positioned in the zone.
A. hot
B. warm
C. cold
D. emergency.
Answer: C. cold
◍ Self-contained breathing apparatus and supplied air respirators are two types
of:
A. rebreather equipment.
B. air-purification devices.
C. air-filtration devices.
D. atmosphere supplied devices..
, Answer: D. atmosphere supplied devices.
◍ When initiating an Incident Management System at hazardous
materialsincidents, it is important to remember that an individual's span of
control is:
A. 1 to 5.
B. 3 to 9.
C. 2 to 7.
D. 5 to 10..
Answer: C. 2 to 7.
◍ In the UN/DOT Marking System, Hazard Class 3 includes:
A. black powder.
B. gasoline.
C. ammonium nitrate.
D. magnesium..
Answer: B. gasoline.
◍ Determining whether a vapor will rise or fall is commonly referred to as:
A. vapor dispersion.
B. vapor density.
C. vaporization.
D. specific gravity..
Answer: B. vapor density.
◍ Directions: Read the following statements regarding remote shutoffs
andselect your answers from choices A through
D. Statement 1: Remote shutoffs are usually well marked and in an
easy-to-find location.Statement 2: Remote shutoffs in fixed facilities are
typically located near the entrance.Statement 3: On vehicles, the two most
common locations for remote shutoffs are at the valve controls and behind
the driver's door.
A. Statement 1 is true; statements 2 and 3 are false.
B. Statements 1 and 2 are true; statement 3 is false.
C. Statements 2 and 3 are true; statement 1 is false.
, D. All three statements are true..
Answer: D. All three statements are true.
◍ The products that IM 101 intermodal portable tanks typically carry are:
A. molten sulfur.
B. flammable gases.
C. flammable liquids.
D. radioactive materials..
Answer: C. flammable liquids.
◍ What would be the likely result of allowing a contaminated individual to
leave the hot zone without being decontaminated?
A. Nothing. All contaminates would likely be gone after the individual
exitedthe hot zone.
B. The contaminates would likely be transferred to other personnel or
equipment resulting in secondary contamination.
C. The individual would be treated for exposure but is no risk to others.
D. There would be direct contamination of the warm zone..
Answer: B. The contaminates would likely be transferred to other personnel
or equipment resulting in secondary contamination.
◍ One of the symptoms of poisonous gases such as chlorine and
anhydrousammonia is severe irritation to the __________ system.
A. respiratory
B. skeletal
C. cardiac
D. muscular.
Answer: A. respiratory
◍ When applying water to a highway tanker or railway tank car with
flameimpingement, the minimum amount of water to be used is __________
gpm at the point of flameimpingement.
A. 500
B. 1,000
C. 250
, D. 2,000.
Answer: A. 500
◍ Neutron radiation is commonly used in commercial and industrial
operations.
A. True
B. False.
Answer: B. False
◍ The physical destruction or decomposition of chemical protective clothing
(CPC) by a chemical action is called:
A. degradation.
B. breakthrough time.
C. penetration.
D. permeation..
Answer: A. degradation.
◍ Directions: Read the following statements regarding safety briefings prior
toallowing personnel to work at a hazardous material incident and select
your answer from choices A through
D. Statement 1: Pre-incident survey information is vital to establishing
briefing items.Statement 2: MSDS information can be an important part of
the briefing process.Statement 3: Risk/benefit assessment is the most
important item to be considered.
A. Statement 1 is true; statements 2 and 3 are false.
B. Statements 1 and 2 are true; statement 3 is false.
C. Statement 1 is false; statements 2 and 3 are true.
D. All three statements are true..
Answer: D. All three statements are true.
◍ When a pressurized tanker fails violently due to over-pressurizing, the
phenomenon is called:
A. detonation.
B. SAO
T. C. BLEV
