Practice question

What is the best way to control speed on a long downgrade with air brakes?

Select the proper low gear before the grade and use brakes in a controlled, intermittent way
Ride the brakes lightly all the way down
Shift to neutral to let the brakes cool
Use the parking brake as the main speed control

Answer: A — Select the proper low gear before the grade and use brakes in a controlled, intermittent way

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