Pennsylvania cdl Air Brakes - Test 2
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. To pass, the applicant must answer at least 20 questions correctly. Test questions come from the Commonwealth of Pennsylvania Commercial Driver’s Manual. Questions come from chapters covering: Air Brakes. The Air Brakes endorsement may be used with the Class A, B or C CDL.
To DMV Handbooks18. When you press the brake pedal in a vehicle with S-cam brakes, air pressure pushes out the rod and moves the:
A
√
Slack adjuster.
B
×
Axle.
C
×
Brake drum.
D
×
Alcohol evaporator.