2026 Delaware DMV Air Brakes Class B Test 2 (25 Questions And Complete Answers)
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Terms in this set
25
A wig wag is:
1. A low pressure warning device.
2. A type of air brake system.
3. A tube that carries air to the brakes.
1. A low pressure warning device.
2. A type of air brake system.
3. A tube that carries air to the brakes.
A low pressure warning device.
A dual air brake system:
1. Has a single air brake system, but uses two sets of controls.
2. Has one air brake system for each side of the truck.
3. Has two brakes for each wheel.
4. Has two separate air brake systems, but uses a single set of controls.
1. Has a single air brake system, but uses two sets of controls.
2. Has one air brake system for each side of the truck.
3. Has two brakes for each wheel.
4. Has two separate air brake systems, but uses a single set of controls.
Has two separate air brake systems, but uses a single set of controls.
The brake pedal is part of which braking system?
1. The service brake system
2. The parking brake system
3. The emergency brake system
4. The auxiliary brake system
1. The service brake system
2. The parking brake system
3. The emergency brake system
4. The auxiliary brake system
The service brake system
If the safety relief valve in an air brake system is releasing air:
1. You should not be concerned as this is a normal process.
2. There is something wrong with the brakes.
3. The valve is operational.
1. You should not be concerned as this is a normal process.
2. There is something wrong with the brakes.
3. The valve is operational.
There is something wrong with the brakes.
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.
Most heavy-duty vehicles use:
1. Single air brake systems.
2. Dual air brake systems.
3. Triple air brake systems.
4. Quadruple air brake systems.
1. Single air brake systems.
2. Dual air brake systems.
3. Triple air brake systems.
4. Quadruple air brake systems.
Dual air brake systems.
A vehicle equipped with an Anti-Lock Braking System (ABS) uses a ____ light to warn that the system is not working properly.'
1. Green
2. Yellow
3. Orange
4. White
1. Green
2. Yellow
3. Orange
4. White
Yellow
How is the parking brake released?'
1. By tapping on the brake pedal three times
2. By pushing in the brake control knob
3. By engaging the accelerator
4. By tapping the accelerator twice
1. By tapping on the brake pedal three times
2. By pushing in the brake control knob
3. By engaging the accelerator
4. By tapping the accelerator twice
By pushing in the brake control knob
During a static leakage test, the maximum leakage rate for a triple combination vehicle with air brakes is ____ in a minute.'
1. 3 psi
2. 5 psi
3. 7 psi
4. 9 psi
1. 3 psi
2. 5 psi
3. 7 psi
4. 9 psi
5 psi
Before driving a vehicle with a dual air brake system, you must wait for the air compressor to build a minimum of ____ in both the primary and secondary systems.'
1. 25 psi
2. 50 psi
3. 75 psi
4. 100 psi
1. 25 psi
2. 50 psi
3. 75 psi
4. 100 psi
100 psi
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