California CDL School Bus (S) 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 California Department of Motor Vehicles (DMV) exam questions.
Official exam outline from California Department of Motor Vehicles (DMV)Loading questions…
Practice coverage
This bank uses the following practice allocation. Check the official exam outline for current ranges and requirements.
- Danger zones and mirror use (handbook Section 10.1): 20%
- Approaching, loading and unloading students, and post-trip checks (handbook Sections 10.2 and 10.2.6): 20%
- Emergency evacuation, exits and emergency equipment (handbook Section 10.3; 49 CFR 393.62 and 393.95): 15%
- Railroad-highway grade crossings (handbook Sections 10.4 and 1.3.5; 49 CFR 383.123): 15%
- Student management, special safety considerations and the phone rule (handbook Sections 10.5, 10.7 and Section 1 introduction): 15%
- Anti-lock braking systems on school buses (handbook Section 10.6): 5%
- Endorsement tests, certificates and federal school bus rules (handbook Sections 1.1, 1.2, 13.1.10; 49 CFR 383): 10%