2026 Montana DMV Air Brakes Class A Test 2 (25 Questions And Complete Answers)
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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
If the brake pads rub against the brake drums and create too much heat:
1. The brakes will stick.
2. The brakes will become extra sensitive.
3. The brakes may stop working.
4. The air compressor will kick on to cool the brakes.
1. The brakes will stick.
2. The brakes will become extra sensitive.
3. The brakes may stop working.
4. The air compressor will kick on to cool the brakes.
The brakes may stop working.
The air compressor is connected to the:
1. Transmission.
2. Engine.
3. Radiator.
1. Transmission.
2. Engine.
3. Radiator.
Engine.
Test the low pressure warning signal:
1. Once a month.
2. Once a week.
3. Twice a week.
4. Before every trip.
1. Once a month.
2. Once a week.
3. Twice a week.
4. Before every trip.
Before every trip.
In a dual air brake system:
1. Air tanks are shared between both systems.
2. Each system has its own air tanks.
3. You must designate which system you are using.
1. Air tanks are shared between both systems.
2. Each system has its own air tanks.
3. You must designate which system you are using.
Each system has its own air tanks.
The emergency brake system uses:
1. Only parts of the parking brake system.
2. Only parts of the service brake system.
3. Parts of both the parking and service brake systems.
4. Only parts unique to the emergency brake system.
1. Only parts of the parking brake system.
2. Only parts of the service brake system.
3. Parts of both the parking and service brake systems.
4. Only parts unique to the emergency brake system.
Parts of both the parking and service brake systems.
A one-way check valve:
1. Drains the water and compressor oil from the air tanks.
2. Prevents air from escaping if the air compressor has a leak.
3. Activates the emergency brakes when there is a leak.
4. Holds the spring brakes in position until they are used.
1. Drains the water and compressor oil from the air tanks.
2. Prevents air from escaping if the air compressor has a leak.
3. Activates the emergency brakes when there is a leak.
4. Holds the spring brakes in position until they are used.
Prevents air from escaping if the air compressor has a leak.
You should ____ if the low pressure warning signal activates while you are driving.
1. Stop where you are and park
2. Exit the roadway as soon as safely possible
3. Continue driving normally
1. Stop where you are and park
2. Exit the roadway as soon as safely possible
3. Continue driving normally
Exit the roadway as soon as safely possible
Friction in an S-cam brake is caused when the brake shoes and linings:
1. Press against the outside of the brake drum.
2. Press against the inside of the brake drum.
3. Push against each other.
1. Press against the outside of the brake drum.
2. Press against the inside of the brake drum.
3. Push against each other.
Press against the inside of the brake drum.
Dollies equipped with ABS are required to have malfunction lamps located where?
1. On the rear
2. On the left side
3. On the top
4. On the front
1. On the rear
2. On the left side
3. On the top
4. On the front
On the left side
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