Oregon 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 answer choices. To pass, the applicant must answer at least 20 questions correctly. Test questions come from the Idaho Commercial Driver’s License 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. Some water and compressor oil is usually found in the compressed air within an air brake system. The water and compressor oil:
A
×
Are necessary for the proper function of the system.
B
×
Should take up about 10 percent of the tank.
C
√
Should be removed regularly.