2026 Montana DMV Combination Class A Test 2 (20 Questions And Complete Answers)
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The ____ trailer is the most likely to turn over if a driver takes a turn too quickly.
1. Front
2. Last
3. Middle
1. Front
2. Last
3. Middle
Last
When braking with ABS, you should:
1. Push the brake pedal harder than usual.
2. Push the brake pedal as you normally would.
3. Push the brake pedal more lightly than usual.
1. Push the brake pedal harder than usual.
2. Push the brake pedal as you normally would.
3. Push the brake pedal more lightly than usual.
Push the brake pedal as you normally would.
The emergency air line:
1. Is controlled by the foot brake.
2. Is connected to the relay valves.
3. Supplies air to the trailer air tanks.
4. Prevents skids.
1. Is controlled by the foot brake.
2. Is connected to the relay valves.
3. Supplies air to the trailer air tanks.
4. Prevents skids.
Supplies air to the trailer air tanks.
When you are pulling a trailer, the air supply control lever should be in its ____ position.
1. Emergency
2. Supply
3. Normal
1. Emergency
2. Supply
3. Normal
Normal
A driver should test the tractor protection valve by:
1. Pulling the yellow, diamond-shaped knob.
2. Releasing air with the brake pedal.
3. Unlocking the trailer doors.
1. Pulling the yellow, diamond-shaped knob.
2. Releasing air with the brake pedal.
3. Unlocking the trailer doors.
Releasing air with the brake pedal.
If a trailer begins to jackknife, you should not:
1. Release the brakes.
2. Apply the trailer hand brake.
3. Allow the wheels to grip the road.
4. Allow the trailer to straighten out.
1. Release the brakes.
2. Apply the trailer hand brake.
3. Allow the wheels to grip the road.
4. Allow the trailer to straighten out.
Apply the trailer hand brake.
The trailer hand valve should be used:
1. To test the trailer brakes.
2. To check the connection between the trailer and tractor.
3. To accelerate.
1. To test the trailer brakes.
2. To check the connection between the trailer and tractor.
3. To accelerate.
To test the trailer brakes.
A shut-off valve:
1. Is located on the front of a trailer.
2. Is located on the instrument panel.
3. Prevents air from escaping an air brake system.
4. Should always be open.
1. Is located on the front of a trailer.
2. Is located on the instrument panel.
3. Prevents air from escaping an air brake system.
4. Should always be open.
Prevents air from escaping an air brake system.
If you must cross traffic while driving a combination vehicle, you should:
1. Assume other drivers will make room for your vehicle.
2. Wait for a gap large enough for your vehicle to safely cross.
3. Rely only on your mirrors.
1. Assume other drivers will make room for your vehicle.
2. Wait for a gap large enough for your vehicle to safely cross.
3. Rely only on your mirrors.
Wait for a gap large enough for your vehicle to safely cross.
A trolley valve:
1. Should be used while driving.
2. Should only be used to test trailer brakes.
3. Should be used when parking uphill.
1. Should be used while driving.
2. Should only be used to test trailer brakes.
3. Should be used when parking uphill.
Should only be used to test trailer brakes.
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