CDL Pretrip Inspection (Class B Bus) Questions and Answers | Latest Version | 2025/2026 | Correct & Verified

CDL Pretrip Inspection (Class B Bus) Questions and Answers | Latest Version | 2025/2026 | Correct & Verified What is the main purpose of a CDL pretrip inspection? To ensure the bus is safe to operate What should be checked first during a pretrip inspection? The general condition of the vehicle Why is checking tire condition important? To prevent blowouts and loss of control What should be looked for when inspecting tires? Proper tread and no visible damage Why is tire pressure checked? To ensure safe handling and braking What should be inspected on the wheels? Lug nuts and rims Why are loose lug nuts dangerous? 2 They can cause the wheel to come off What should be checked on the bus suspension? Springs, shocks, and mounts Why is suspension inspection important? It supports the weight of the bus What must be checked on the steering system? Linkages and hoses Why is steering play important to inspect? Too much play makes steering unsafe What should be examined in the engine compartment? Belts, hoses, and fluids Why is checking fluid levels important? Low fluids can cause engine failure What fluids should be inspected? Oil, coolant, power steering, and washer fluid 3 Why are belts checked during pretrip? To ensure they are not cracked or loose What should be checked on radiator hoses? No leaks or bulges Why is battery inspection important? It powers the bus What should be checked on battery terminals? They should be clean and tight Why is the exhaust system inspected? To prevent leaks and fumes What should be checked on the exhaust? No cracks or hanging parts Why are mirrors inspected? To ensure clear visibility 4 What should be checked on mirrors? They are clean and secure Why are windshield and wipers checked? For clear vision in bad weather What should be checked on the windshield? No cracks blocking the view Why are lights checked during pretrip? To ensure other drivers can see the bus What lights should be tested? Headlights, brake lights, and turn signals Why are reflectors important? They make the bus visible What should be checked on reflectors? They are clean and not broken Why is brake inspection critical? 5 Brakes stop the bus