Utah 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 two, three or four answer choices. To pass, the applicant must answer at least 20 questions correctly. Test questions come from the Utah Commercial Driver License Handbook. 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 Handbooks2. When starting a vehicle with dual air brakes, pressure of ____ should be built up in the system before it is driven.
A
×
10 psi
B
×
25 psi
C
√
100 psi
D
×
200 psi