Texas Cdl Air Brakes Test 3 93 Questions And Answers
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Terms in this set
93
When should you drain the air tanks if you do not have an automatic tank drain?
At the end of every working day.
What is the S-cam used for?
To push the brake shoes against the brake drum.
What makes the total stopping distance for air brakes longer than that for hydraulic brakes?
Brake lag.
What is the service brake system?
The brake system that applies and releases the brakes when the driver uses the brake pedal.
How do you make an emergency stop with air brakes using the stab braking method?
Apply firm pressure, release when wheels lock, then reapply.
What is the brake lag distance at 55 mph?
Approximately 32 feet.
What is the purpose of an alcohol evaporator in a vehicle?
Help prevent moisture from freezing.
What can legally hold a parking or emergency brake in position?
Wheel chocks or a parking brake device.
What is the braking power of the spring brakes?
Parking and emergency braking.
What should you do before leaving your vehicle unattended?
Set parking brake and/or chock wheels.