Wisconsin cdl Air Brakes - Test 1
Number of questions: 25
Passing score: 80%
Acceptable number of errors: 5
This endorsement is required for driving a vehicle with air brakes. To receive this endorsement, applicants must pass a written test. The test consists of 25 multiple choice questions. Each question has three or four answer choices. To pass, the applicant must answer at least 20 questions correctly. Test questions come from the Wisconsin Commercial Driver’s Manual. Questions come from the chapter covering: Air Brakes. The Air Brakes endorsement may be used with the Class A, B or C CDL.
To DMV Handbooks4. When traveling down a steep downgrade, the best way to use your brakes is to:
Ride the brakes all the way down the hill.
Apply the brakes for a few seconds, then release the brakes for a few seconds. Continue to repeat these steps as you travel down the hill.
Apply the brakes only near the bottom of the downgrade.
Apply consistent pressure to the brake pedal all the way down the hill.