CDL Tank Vehicle Endorsement/Topics
CDL Tank Vehicle Endorsement topics: what the test covers
3 main topics cover 30 of the 80 questions in the bank. Baffles Compartments is the biggest with 10 questions, Inspection the smallest with 10. Pick one to drill, or take the full timed quiz.
The real test
Multiple-choice knowledge test · 80% to pass (49 CFR 383.135) · item count set by your state.
80% to pass · question count set by your state
How the bank is weighted
3 main topics, 30 of 80 questions
The wider the slice, the bigger that topic is among the main ones. Smaller topics live in the full bank. Each question is written from the official source and cites it.
Pick a topic
Drill one topic at a time
- 2 free
Baffles Compartments
10 questionsPractice - 2 free
Emergency Systems
10 questionsPractice - 2 free
Inspection
10 questionsPractice
Before you pick a topic
The CDL Tank Vehicle Endorsement tests knowledge across 3 primary domains: Inspection, Baffles Compartments, Emergency Systems.
QuizCram covers 30 verified practice questions categorized by testing module, each citing official handbook rules.
The standard passing mark is 80% (Multiple-choice knowledge test · 80% to pass (49 CFR 383.135) · item count set by your state).