HAZMAT OPS PRACTICE TEST QUESTIONS WITH 100% ACCURATE SOLUTIONS

HAZMAT OPS PRACTICE TEST QUESTIONS WITH 100%
ACCURATE SOLUTIONS 2024-2025


1) Within the UN system, a container labeled with a hazard class 4 contains a:
v, v, v, v, v, v, v, v, v, v, v, v, v,




A) Combustible liquid v,




B) flammable gas v,




C) flammable solid v,




D) flammable liquid -- Correct Answer ✔✔ flammable solid v, v, v, v, v, v, v,




2) Of the references listed below, the MOST SPECIFIC source of information on a
v, v, v, v, v, v, v, v, v, v, v, v,




hazardous material is/are:
v, v, v,




A) The DOT Emergency Response Guidebook
v, v, v, v,




B) The Material Safety Data Sheet (MSDS)
v, v, v, v, v,




C) DOT placards v,




D) The NFPA 704 system -- Correct Answer ✔✔ The Material Safety Data Sheet
v, v, v, v, v, v, v, v, v, v, v, v,




(MSDS) v,




3) Physical data, chemical name, exposure limits, health hazard data, and special
v, v, v, v, v, v, v, v, v, v,




precautions are all parts of the:
v, v, v, v, v, v,




A) Dangerous Cargo Manifest v, v,




B) Emergency Response Guidebook v, v,




C) Material Safety Data Sheet v, v, v,




D) UN ID system -- Correct Answer ✔✔ Material Safety Data Sheet
v, v, v, v, v, v, v, v, v, v,




4) The background color of a placard that would signify a poisonous substance hazard and
v, v, v, v, v, v, v, v, v, v, v, v, v,




that contains a skull and crossbones is:
v, v, v, v, v, v, v,




A) Yellow
B) Orange
C) Red
D) White -- Correct Answer ✔✔ White v, v, v, v, v,

,5) Referring to the U.S. Military Marking System for Hazardous Materials, an octagon-
v, v, v, v, v, v, v, v, v, v, v,




shaped placard with a #1 on it denotes a:
v, v, v, v, v, v, v, v,




A) Moderate fire hazard v, v,




B) Chemical fire hazard v, v,




C) Mass detonation v,




D) Mass Escape -- Correct Answer ✔✔ Mass Detonation v, v, v, v, v, v, v,




6) Referring to the U.S. Military Marking system for hazardous materials, the symbol for a
v, v, v, v, v, v, v, v, v, v, v, v, v,




mass fire hazard is:
v, v, v, v,




A) #3 in a triangle v, v, v,




B) #1 in a square v, v, v,




C) #2 in a square v, v, v,




D) #4 in a circle -- Correct Answer ✔✔ #3 in a triangle
v, v, v, v, v, v, v, v, v, v, v,




7) Given the DOT Emergency Response Guidebook, the hazard class number assigned
v, v, v, v, v, v, v, v, v, v,




for Vinyl Chloride with the I.D. #1086 is:
v, v, v, v, v, v, v, v,




A) 2
B) 4
C) 9
D) 1 -- Correct Answer ✔✔ 2 v, v, v, v, v,




8) An explosive with a fragment hazard is denoted by the U.S. Military Marking System as
v, v, v, v, v, v, v, v, v, v, v, v, v, v,




a:
v,




A) #3 in an X v, v, v,




B) #4 in an X v, v, v,




C) #2 in an X v, v, v,




D) #4 in a circle -- Correct Answer ✔✔ #2 in an X
v, v, v, v, v, v, v, v, v, v, v,




9) When referring to the U.S. military marking system, if a circle with a symbol of a
v, v, v, v, v, v, v, v, v, v, v, v, v, v, v,




person wearing a mask is seen, it is necessary to assume that:
v, v, v, v, v, v, v, v, v, v, v, v,




A) Protective mask or breathing apparatus must be used v, v, v, v, v, v, v,




B) Fumigants are being used v, v, v,




C) Turn-out clothing must be used v, v, v, v,




D) Hazardous material is of an odorous nature -- Correct Answer ✔✔ Protective v, v, v, v, v, v, v, v, v, v, v,




mask or breathing apparatus must be used
v, v, v, v, v, v, v,

, 10) A tractor-trailer carrying 975 lbs. of organic peroxides requires:
v, v, v, v, v, v, v, v,




A) a white placard v, v,




B) an orange placard v, v,




C) a yellow placard v, v,




D) no placard -- Correct Answer ✔✔ No Placard
v, v, v, v, v, v, v,




11) the NFPA 704 system provides the:
v, v, v, v, v,




A) General hazard information v, v,




B) Product's chemical name v, v,




C) Four digit UN number v, v, v,




D) Number used to look up the product's name -- Correct Answer ✔✔ General v, v, v, v, v, v, v, v, v, v, v, v,




Hazard Informationv, v,




12) Some materials can become explosive as they age. One example of this type of
v, v, v, v, v, v, v, v, v, v, v, v, v,




material is:
v, v,




A) Radioactive material v,




B) Poison
C) Flammable gas v,




D) Organic peroxide -- Correct Answer ✔✔ Organic Peroxide v, v, v, v, v, v, v,




13) The primary hazard of an oxidizer is its ability to:
v, v, v, v, v, v, v, v, v,




A) disintegrate tissue and steel v, v, v,




B) accelerate combustion v,




C) form combustible mixtures in air v, v, v, v,




D) cause harm when inhaled -- Correct Answer ✔✔ accelerate combustion
v, v, v, v, v, v, v, v, v,




14) The DOT hazard class 2 includes:
v, v, v, v, v,




A) flammable solids v,




B) poison liquid v,




C) nonflammable gases v,




D) corrosive poisons -- Correct Answer ✔✔ Nonflammable gases v, v, v, v, v, v, v,




15) The DOT hazard class 1 includes:
v, v, v, v, v,




A) etiologic agents v,




B) explosives
C) corrosives