CDL (Commercial Driver)
CDL Tank Vehicles (N) Practice Test 2
Free — no payment neededLevel: Mixed
20 original CDL Tank Vehicles (N) questions based on the federal motor carrier safety rules (49 CFR). Practice test, not affiliated with any government agency.
Created by AI
Practice test, not affiliated with any government agency. Original questions written from public sources, checked by a second AI reviewer and automated checks. Rules change; confirm with the official handbook. Available in 2 languages (translations are machine-made and checked automatically).
Before you start
- Questions
- 20 multiple-choice questions, one at a time
- Time
- About 12 minutes. Untimed — take as long as you need.
- Pass mark
- 16 out of 20 correct (80%)
- Feedback
- Your score, the correct answers and short explanations when you finish
- Account
- Not needed. Your answers stay in this browser.
What this test covers
Tank safety rulesSurge and bafflesDriving tank vehiclesTank inspection
Preview the first question
A driver will haul gasoline in a tank truck. What is the X endorsement on a CDL?
- A school bus endorsement for long trips across States
- A restriction to vehicles with automatic transmissions
- A combination of the tank and hazmat endorsements
- An endorsement for oversize loads
Answers are revealed on the results page after you finish.