CDL · Emergencies
When you must brake hard in an emergency, which principle matters most?
Correct answer: You lose control of the vehicle whenever its wheels are skidding.
Answer options
- AYou should always downshift before you start to brake.
- BDisabling the steering axle brakes helps keep the truck straight.
- CYou lose control of the vehicle whenever its wheels are skidding. Correct
Why
Locked wheels make the vehicle slide, and sliding tires cannot steer it, so brake hard but ease up whenever the wheels lock, then reapply. Turning off the front brakes is never a safe way to stay straight.
About this question
Topic: Emergencies License: CDL
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Where it applies: Asked in every state.
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