CDL · CDL general knowledge
On a long, steep downgrade, your speed has crept up to your "safe" speed. About how far below that speed should you brake before releasing the brakes?
Correct answer: About 5 mph.
Answer options
- AAbout 5 mph Correct
- BAbout 10 mph
- CAbout 20 mph
Why
Brake firmly enough to feel a clear slowdown, let up once you are roughly 5 mph under your safe speed, and brake again when the speed climbs back to it. Short, firm applications combined with engine braking keep the brakes from overheating and fading, which light, steady braking would cause.
About this question
Topic: CDL general knowledge License: CDL
Part of these practice sets:
Where it applies: Asked in every state.
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This question is part of Mountain Grades and Brake Fade (16 questions). Take the full set and check your score.
Practice Mountain Grades and Brake FadeMore questions from Mountain Grades and Brake Fade
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- Partway down a long, steep grade, your brakes overheat and stop working. What is your best course of action?
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