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Question:
On a long or steep downgrade, once you have reached your "safe" speed, brake until you are traveling ________________.
A
5 mph slower.
explanation
The use of brakes on a long and/or steep downgrade is only a supplement to the braking effect of the engine. Once the vehicle is in the proper low gear, the following are the proper braking techniques:
1. Apply the brakes just hard enough to feel a definite slowdown.
2. When your speed has been reduced to approximately 5 mph below your “safe” speed, release the brakes. (This brake application should last for about 3 seconds.)
When your speed has increased to your “safe” speed, repeat steps 1 and 2.
[Commercial Driver's License Manual]
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5 years ago
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