Ohio 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. To pass, the applicant must answer at least 20 questions correctly. Test questions come from the Ohio Commercial Driver’s License Manual. Questions come from chapter covering: Air Brakes. The Air Brakes endorsement may be used with the Class A, B or C CDL.
To DMV Handbooks17. A low air pressure warning signal should activate:
A
×
When tank pressure falls below 120 psi.
B
√
When tank pressure falls below 60 psi.
C
×
When tank pressure falls below 10 psi.
D
×
When tank pressure falls below 5 psi.