What's on the Air Brake Knowledge Test The written portion consists of 20 to 25 multiple-choice questions; this test is administered on a computer. ... The pass mark for the written exam is 80%. Some of the important contents for the written exam includes: Components of an air brake system and dual air brakes.
How many questions are on the CDL permit test air brakes?
25 questions
What are the 3 tests for CDL permit?
The three areas that you will be tested on for your CDL are general knowledge, combination vehicles, and air brakes.
How many questions is on the CLP test?
How many questions are on the CLP test? It will again vary by state, but generally about 50 for the General Knowledge, and 20-25 each for air brakes and combination vehicles.
How do I test my air brakes?
- Make sure the air pressure is above 100psi – 120psi.
- Turn the key to the off position.
- Turn the key to the on position, do not start the truck.
- Press both air brake valves in, red valve first then yellow in second.
- Air pressure will drop, allow pressure to stabilize.
Which of the following are you testing when you do the air brake test?
The Air Brake Test covers the different braking systems and tests you on your knowledge of parking brakes, service brakes, emergency brakes, reading low pressure warnings, checking pressure gauges, and more.