2026 Mississippi DMV Air Brakes Class B Test 2 (25 Questions And Complete Answers)
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Terms in this set
25
What color are ABS malfunction lamps?
1. Orange
2. Yellow
3. Green
4. Blue
1. Orange
2. Yellow
3. Green
4. Blue
Yellow
T ruck tractors with air brakes built on or after March 1, 1997 must have:
1. An Anti-Lock Braking System (ABS).
2. Bluetooth.
3. GPS.
4. A rear back-up camera.
1. An Anti-Lock Braking System (ABS).
2. Bluetooth.
3. GPS.
4. A rear back-up camera.
An Anti-Lock Braking System (ABS).
4 Friction inside a brake drum is caused when the brake shoes and linings:
1. Push against each other.
2. Separate from the axle.
3. Push against the inside of the drum.
4. Create excess heat.
1. Push against each other.
2. Separate from the axle.
3. Push against the inside of the drum.
4. Create excess heat.
Push against the inside of the drum.
The leakage rate for a triple combination vehicle with air brakes should be no more than ____ in one minute during a static leakage test.
1. 8 psi
2. 5 psi
3. 3 psi
1. 8 psi
2. 5 psi
3. 3 psi
5 psi
The parking brake should be':
1. Used whenever you park your vehicle.
2. Used while driving.
3. Set when driving in bad weather.
4. Removed.
1. Used whenever you park your vehicle.
2. Used while driving.
3. Set when driving in bad weather.
4. Removed.
Used whenever you park your vehicle.
Truck tractors with air brakes that were built on or after March 1, 1997 are equipped with:
1. An extra set of brakes.
2. Voice-activated brakes.
3. Cruise control.
4. Anti-Lock Braking Systems (ABS).
1. An extra set of brakes.
2. Voice-activated brakes.
3. Cruise control.
4. Anti-Lock Braking Systems (ABS).
Anti-Lock Braking Systems (ABS).
Braking mechanisms are located inside:
1. The fifth wheel.
2. A brake drum.
3. The landing gear.
1. The fifth wheel.
2. A brake drum.
3. The landing gear.
A brake drum.
Pressing and releasing the brake pedal unnecessarily can:
1. Release air faster than it can be replaced.
2. Add more air to a brake system.
3. Make the brake pedal harder to depress.
4. Create a loud noise.
1. Release air faster than it can be replaced.
2. Add more air to a brake system.
3. Make the brake pedal harder to depress.
4. Create a loud noise.
Release air faster than it can be replaced.
What kind of force do emergency brakes use?
1. Air pressure
2. Mechanical
3. Heavy
1. Air pressure
2. Mechanical
3. Heavy
Mechanical
The service brake system:
1. Applies and releases the brakes when you press the brake pedal while driving normally.
2. Applies and releases the parking brakes.
3. Applies and releases the emergency brake.
4. Applies and releases the axle brake.
1. Applies and releases the brakes when you press the brake pedal while driving normally.
2. Applies and releases the parking brakes.
3. Applies and releases the emergency brake.
4. Applies and releases the axle brake.
Applies and releases the brakes when you press the brake pedal while driving normally.
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