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Hazmat Ops Test Prep |New
Comprehensive Q&A For Certification
Success 2026
A hazard class of 3, within the U.N. labeling system indicates a ________ product.
-Flammable gas
-Flammable solid
-Flammable liquid
-Poisonous liquid - correct-answer -Flammable Liquid
A substance that readily yields oxygen to support combustion of fuels, would be
labeled hazard class ______ under the U.N. Labeling system.
-3
-5
-7
-9 - correct-answer -5
A container of flammable solids would receive a UN label or placard with a
hazardous classification number of:
-1
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-2
-3
-4 - correct-answer -4
Using the DOT labeling system, a flammable liquid would receive a hazard
classification of:
-1
-2
-3
-4 - correct-answer -3
Within the UN system, a container labeled with a hazard class 4 contains a:
-Combustible liquid
-flammable gas
-flammable solid
-flammable liquid - correct-answer -flammable solid
Of the references listed below, the MOST SPECIFIC source of information on a
hazardous material is/are:
-The DOT Emergency Response Guidebook
-The Material Safety Data Sheet (MSDS)
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-DOT placards
-The NFPA 704 system - correct-answer -The Material Safety Data Sheet (MSDS)
Physical data, chemical name, exposure limits, health hazard data, and special
precautions are all parts of the:
-Dangerous Cargo Manifest
-Emergency Response Guidebook
-Material Safety Data Sheet
-UN ID system - correct-answer -Material Safety Data Sheet
The background color of a placard that would signify a poisonous substance
hazard and that contains a skull and crossbones is:
-Yellow
-Orange
-Red
-White - correct-answer -White
Referring to the U.S. Military Marking System for Hazardous Materials, an
octagon-shaped placard with a #1 on it denotes a:
-Moderate fire hazard
-Chemical fire hazard
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-Mass detonation
-Mass Escape - correct-answer -Mass Detonation
Referring to the U.S. Military Marking system for hazardous materials, the symbol
for a mass fire hazard is:
-#3 in a triangle
-#1 in a square
-#2 in a square
-#4 in a circle - correct-answer -#3 in a triangle
Given the DOT Emergency Response Guidebook, the hazard class number
assigned for Vinyl Chloride with the I.D. #1086 is:
-2
-4
-9
-1 - correct-answer -2
An explosive with a fragment hazard is denoted by the U.S. Military Marking
System as a:
-#3 in an X
-#4 in an X
Hazmat Ops Test Prep |New
Comprehensive Q&A For Certification
Success 2026
A hazard class of 3, within the U.N. labeling system indicates a ________ product.
-Flammable gas
-Flammable solid
-Flammable liquid
-Poisonous liquid - correct-answer -Flammable Liquid
A substance that readily yields oxygen to support combustion of fuels, would be
labeled hazard class ______ under the U.N. Labeling system.
-3
-5
-7
-9 - correct-answer -5
A container of flammable solids would receive a UN label or placard with a
hazardous classification number of:
-1
,2|Page
-2
-3
-4 - correct-answer -4
Using the DOT labeling system, a flammable liquid would receive a hazard
classification of:
-1
-2
-3
-4 - correct-answer -3
Within the UN system, a container labeled with a hazard class 4 contains a:
-Combustible liquid
-flammable gas
-flammable solid
-flammable liquid - correct-answer -flammable solid
Of the references listed below, the MOST SPECIFIC source of information on a
hazardous material is/are:
-The DOT Emergency Response Guidebook
-The Material Safety Data Sheet (MSDS)
,3|Page
-DOT placards
-The NFPA 704 system - correct-answer -The Material Safety Data Sheet (MSDS)
Physical data, chemical name, exposure limits, health hazard data, and special
precautions are all parts of the:
-Dangerous Cargo Manifest
-Emergency Response Guidebook
-Material Safety Data Sheet
-UN ID system - correct-answer -Material Safety Data Sheet
The background color of a placard that would signify a poisonous substance
hazard and that contains a skull and crossbones is:
-Yellow
-Orange
-Red
-White - correct-answer -White
Referring to the U.S. Military Marking System for Hazardous Materials, an
octagon-shaped placard with a #1 on it denotes a:
-Moderate fire hazard
-Chemical fire hazard
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-Mass detonation
-Mass Escape - correct-answer -Mass Detonation
Referring to the U.S. Military Marking system for hazardous materials, the symbol
for a mass fire hazard is:
-#3 in a triangle
-#1 in a square
-#2 in a square
-#4 in a circle - correct-answer -#3 in a triangle
Given the DOT Emergency Response Guidebook, the hazard class number
assigned for Vinyl Chloride with the I.D. #1086 is:
-2
-4
-9
-1 - correct-answer -2
An explosive with a fragment hazard is denoted by the U.S. Military Marking
System as a:
-#3 in an X
-#4 in an X
