semplr.

Exams · Certifications · Licensing

CDL Hazardous Materials (H) Endorsement Test

Emergencies and reporting: practice questions

Our CDL Hazmat bank has 25 questions on this topic. Here are 5 of them with answers; the full mock exam draws from every topic, like the real one.

Start the free mock exam

Question 1

When sending someone for help, what should you give them?

  1. Only your phone number and the truck's license plate
  2. The emergency, location, your and the carrier's names, and the material's name, class and ID number
  3. Only the shipper's address
  4. Only the truck's plate number
Show the answer

B. The emergency, location, your and the carrier's names, and the material's name, class and ID number — Give a description, exact location and direction, your name, the carrier and terminal city, and the proper shipping name, class and ID number (CDL Manual 9.7.3)

Question 2

You think a poison might also be flammable. What should you do?

  1. Treat it only as a poison and use water to dilute the spill
  2. Use water to dilute it
  3. Light a flare to warn traffic
  4. Take the added precautions for flammable materials
Show the answer

D. Take the added precautions for flammable materials — If you think a 2.3 or 6.1 might be flammable, take the added precautions needed for flammable liquids or gases (CDL Manual 9.7.4)

Question 3

What is the National Response Center's toll-free number?

  1. 800-424-8802
  2. 800-424-9300
  3. 800-222-1222
  4. 800-535-5053
Show the answer

A. 800-424-8802 — 49 CFR 171.15(a): notice by telephone to the NRC on 800-424-8802 (toll free)

Question 4

A marine pollutant is released. Above what amount must it be reported to the NRC?

  1. 55 gallons of liquid or 500 pounds of solid
  2. 1,000 gallons of liquid or 2,205 pounds of solid
  3. Any amount
  4. 119 gallons of liquid or 882 pounds of solid
Show the answer

D. 119 gallons of liquid or 882 pounds of solid — 49 CFR 171.15(b)(4): a release exceeding 450 L (119 gallons) for a liquid or 400 kg (882 pounds) for a solid

Question 5

If compressed gas is involved in any accident, whom must you notify?

  1. The consignee
  2. The state DMV
  3. The shipper
  4. The tire company
Show the answer

C. The shipper — You must notify the shipper if compressed gas is involved in any accident (CDL Manual 9.7.4)

More CDL Hazmat topics