Arizona CDL Air Brakes: Practice Test - Practice Test 2
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If the low air pressure warning signal comes on in a vehicle with air brakes, the driver should:
Test the brakes while driving, but continue driving if nothing seems wrong.
Immediately stop driving.
Drive with the hazard lights activated.
An emergency brake must be controlled by:
Mechanical force.
Air pressure.
Gravity.
The air compressor is connected to the:
Transmission.
Engine.
Radiator.
Air tank drains:
Should not be used in cold weather.
Are helpful to remove water and oil from the air tanks.
Are used to move air to the brakes.
If you are driving and the ABS light comes on, it means that the ABS:
Cannot work due to weather conditions.
Has just been activated.
Is not working properly.
A low air pressure warning signal:
Is not required on vehicles with air brakes.
Is required on vehicles with air brakes.
Is optional on vehicles with air brakes.
What do the two systems of a dual air brake system share?
Hoses
An air compressor
Air tanks
Alcohol evaporators are:
Illegal.
Used to introduce alcohol into air brake systems.
Only allowed in the northern parts of the state.
When leaving your vehicle unattended:
The parking brake must be always be used.
The parking brake should never be used.
Windows in the cab should be lowered.
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