Texas CDL Tank Vehicle (N) Endorsement Knowledge Test Practice Questions
100 original questions with cited readings, answer explanations, and feedback for each alternative.
Approved after AI editorial review on 2026-10-30. These are original practice questions, not official Texas Department of Public Safety (DPS) exam questions.
Official exam outline from Texas Department of Public Safety (DPS)Loading questions…
Practice coverage
This bank uses the following practice allocation. Check the official exam outline for current ranges and requirements.
- Tank inspection and special equipment (Section 8.1; 49 CFR 383.119(g)-(h)): 15%
- Liquid surge, tank design and loading limits (Section 8.2-8.3; 49 CFR 383.119(a), (c)-(e)): 20%
- Driving, braking and grades with tank vehicles (Sections 2.16, 6.1, 8.3; 49 CFR 383.119(b), (f)): 15%
- Air brake systems and checks (Section 5; 49 CFR 383.119(b)): 15%
- Bulk tank marking, loading and attendance (Section 9.5; 49 CFR 383.119(h)): 20%
- Emergency handling and emergency equipment (Sections 2.17, 5.4, 8.1.2-8.1.3; 49 CFR 383.119(g)): 15%