TX CDL Air Brakes 2 Flashcards
The air compressor governor controls:
when air is pumped into the air tanks.
Air brake equipped vehicles must have:
a supply pressure gauge.
Modern air brakes systems combine three different systems. They are the service brakes, the parking brakes, and the:
emergency brakes.
If you must make an emergency stop, you should brake so that you:
stay in a straight line and can steer.
The driver must be able to see a warning light that is given before air pressure in the service air tanks falls below:
60psi.
The most common type of foundation brakes found on heavy vehicles is the:
S-cam brake.
The modulating control valve is?
A spring-loaded valve that will let you put on the brakes slowly if the service brakes fail.
Which of the following will be true about your brake function if your anti-lock braking system (ABS) fails?
You will still have normal brake function and will just need to get the ABS repaired soon.
What is NOT part of the braking process when you’re driving a tractor-trailer combination vehicle with an anti-lock braking system (ABS)?
You should drive faster so that you will be able to keep the trailer and tractor straight.
What is true about a dual air brake system?
Usually, one system operates the front axle and the other system operates the rear axle; it uses a single set of brake controls; one system is called the “primary” system and the other one is called the “secondary.”
How can you tell if your vehicle is equipped with an anti-lock braking system (ABS)?
Check if the vehicle was manufactured after 1998.
In the event of a brake failure, the emergency brake system uses _____________ to stop the vehicle.
parts of the service brakes and parking brakes
Repeatedly pressing and releasing (fanning) the brake pedal may result in ______________.
a loss of brake pressure
If the spring brakes are on, when should you push the brake pedal?
Never
What is the most important thing about hard braking?
Don’t lock the wheels longer than an instant.
