Community QuestionSeen on 10 CBTs

You have loaded a hazardous material into a cargo tank. What must you do before you move the vehicle?

Community-sourced. Answers may be wrong or out of date. Always verify with your official training portal before submitting. Not affiliated with any branch, agency, or vendor. Details.

Answer

Close all manholes and valves. Be sure they are free of leaks

8 of 10 indexed CBT versions give this answer·Answer index rebuilt Aug 16, 2026

The indexed versions don't agree on this one

This question appears on 10 CBT versions we've indexed, and they don't all give the same answer. Exam editions change and answer keys get re-cut, so more than one of these was correct on the test it came from. Here is each of them, and how many versions give it.

8 of 10 versionsmost versions

Close all manholes and valves. Be sure they are free of leaks

Cdl Hazmat Practice Test · Hazmat Practice · Hazmat Practice Tests · +5 more

2 of 10 versions

a. Close all manholes and valves. Be sure they are free of leaks. b. Call Chemtrec by phone and tell them where you are going. c. Have the loading observers sign the shipping papers. d. Get started on your trip, everything is ok A

Lion Hazmat Training Answers · Lions Hazmat Training

Know which one your test keyed? One click. No account needed.

This question appears on

Cdl Hazmat Practice Test →Hazmat Practice →Hazmat Practice Tests →Hazmat Pratice Test →Hazmat Pre Test →Hazmat Test Answers 2021 →Lion Hazmat Training Answers →Lions Hazmat Training →Practice Test For Hazmat →Practice Test Hazmat →