Alberta Class 1 License Practice Exam

In a pre-trip you check every belt that could affect the vehicle’s safety and performance, because a failure anywhere along the belt drive can leave you stranded or cause a safety issue. The belts you inspect include the ones powering essential systems like the power steering, water pump, and alternator, since each of those components is crucial: power steering for steering assist, the water pump for engine cooling, and the alternator for charging the battery. Some engines use a single serpentine belt that drives several accessories, while others have multiple belts; in either case, you inspect all belts present. Look for cracks, fraying, glazing, oil contamination, or any looseness, and check that the belt tension is correct and the pulleys align properly. If any belt shows wear or damage, it should be replaced before driving.