2026 Minnesota DMV Combination Class A Test 1 (20 Questions And Complete Answers)
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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.
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 press the tractor air supply control and your trailer's spring brakes do not release, you should:
1. Inspect the air line connections.
2. Activate the Anti-Lock Braking System.
3. Turn the engine off and on again.
1. Inspect the air line connections.
2. Activate the Anti-Lock Braking System.
3. Turn the engine off and on again.
Inspect the air line connections.
To help prevent a rollover, cargo should be:
1. Placed as high as possible inside the trailer.
2. Placed as low as possible inside the trailer.
3. Placed on the passenger side of the trailer.
4. Placed on the driver’s side of the trailer.
1. Placed as high as possible inside the trailer.
2. Placed as low as possible inside the trailer.
3. Placed on the passenger side of the trailer.
4. Placed on the driver’s side of the trailer.
Placed as low as possible inside the trailer.
Which of the following types of vehicles is most prone to the “crack-the-whip" effect?
1. An automobile
2. A three-axle tractor
3. A bobtail tractor
4. A triple combination
1. An automobile
2. A three-axle tractor
3. A bobtail tractor
4. A triple combination
A triple combination
An air supply control lever should be in its "normal" position when you are:
1. Changing a tire.
2. Applying the trailer emergency brakes.
3. Pulling a trailer.
4. Using your spring brakes.
1. Changing a tire.
2. Applying the trailer emergency brakes.
3. Pulling a trailer.
4. Using your spring brakes.
Pulling a trailer.
Proper coupling technique:
1. Is the same on all vehicles.
2. Is essential to the safe operation of a vehicle.
3. Includes ensuring that the fifth wheel plate is not greased.
4. Can be learned over time.
1. Is the same on all vehicles.
2. Is essential to the safe operation of a vehicle.
3. Includes ensuring that the fifth wheel plate is not greased.
4. Can be learned over time.
Is essential to the safe operation of a vehicle.
One function of the emergency air line is to:
1. Control the emergency brakes.
2. Flash when air pressure is below a certain psi.
3. Allow for quick turning.
4. Control the ability to maneuver during bad weather conditions.
1. Control the emergency brakes.
2. Flash when air pressure is below a certain psi.
3. Allow for quick turning.
4. Control the ability to maneuver during bad weather conditions.
Control the emergency brakes.
When uncoupling a trailer, landing gear should be:
1. Raised completely.
2. Lowered halfway.
3. Just off the pavement.
4. Firmly on the ground.
1. Raised completely.
2. Lowered halfway.
3. Just off the pavement.
4. Firmly on the ground.
Firmly on the ground.
If you are backing and become unsure about your path of travel, you should:
1. Continue backing.
2. Stop and get out to look.
3. Continue backing, but more slowly than before.
1. Continue backing.
2. Stop and get out to look.
3. Continue backing, but more slowly than before.
Stop and get out to look.
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