2026 Kentucky DMV Air Brakes Class A Test 1 (25 Questions And Complete Answers)
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Terms in this set
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A wig wag is:
1. A low pressure warning device.
2. A tube that carries air to the brakes.
3. A type of air brake system.
1. A low pressure warning device.
2. A tube that carries air to the brakes.
3. A type of air brake system.
A tube that carries air to the brakes.
The ____ are activated by an electric switch that is triggered by the brake pedal.
1. Headlights
2. Turn signals
3. Brake lights
1. Headlights
2. Turn signals
3. Brake lights
Brake lights
To ensure normal stopping power, drivers of vehicles equipped with a front brake limiting valve should:
1. Set the control to normal.
2. Set the control to the off position.
3. Set the control to the neutral position.
1. Set the control to normal.
2. Set the control to the off position.
3. Set the control to the neutral position.
Set the control to normal.
Brakes out of adjustment will:
1. Work properly.
2. Cause some of the brakes to overwork and malfunction.
3. Allow better acceleration.
1. Work properly.
2. Cause some of the brakes to overwork and malfunction.
3. Allow better acceleration.
Cause some of the brakes to overwork and malfunction.
An Anti-Lock Braking System (ABS):
1. Is not available for vehicles with air brakes.
2. Is not helpful in most driving situations.
3. Can help you maintain control when braking.
1. Is not available for vehicles with air brakes.
2. Is not helpful in most driving situations.
3. Can help you maintain control when braking.
Can help you maintain control when braking.
What kind of force do emergency brakes use?
1. Air pressure
2. Mechanical
3. Heavy
1. Air pressure
2. Mechanical
3. Heavy
Mechanical
An emergency brake must be controlled by:
1. Mechanical force.
2. Air pressure.
3. Gravity.
1. Mechanical force.
2. Air pressure.
3. Gravity.
Mechanical force.
If the safety relief valve in the air brake system releases air:
1. The compressor needs more air.
2. The air pressure has become too high.
3. The brakes are fully operational.
1. The compressor needs more air.
2. The air pressure has become too high.
3. The brakes are fully operational.
The air pressure has become too high.
What do the two systems of a dual air brake system share?
1. Hoses
2. An air compressor
3. Air tanks
1. Hoses
2. An air compressor
3. Air tanks
An air compressor
Brake fade is a result of:
1. Brakes being exposed to sunlight.
2. Brakes being exposed to moisture.
3. Excessive use of the brakes.
1. Brakes being exposed to sunlight.
2. Brakes being exposed to moisture.
3. Excessive use of the brakes.
Excessive use of the brakes.
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