2026 Delaware DMV Combination Class A Test 2 (20 Questions And Complete Answers)
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When backing up while coupling a trailer, the tractor should be positioned:
1. Directly in front of the trailer.
2. Directly next to the trailer.
3. Parallel with the trailer.
1. Directly in front of the trailer.
2. Directly next to the trailer.
3. Parallel with the trailer.
Directly in front of the trailer.
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
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.
Using the trailer hand brake while experiencing a trailer jackknife will:
1. Stop the skid.
2. Straighten the trailer.
3. Increase traction.
4. Continue the skid.
1. Stop the skid.
2. Straighten the trailer.
3. Increase traction.
4. Continue the skid.
Continue the skid.
If oil and water build up in your vehicle's air tanks, the brakes:
1. May not work correctly.
2. May feel squishy.
3. Will squeal loudly when used.
4. Will be extremely sensitive.
1. May not work correctly.
2. May feel squishy.
3. Will squeal loudly when used.
4. Will be extremely sensitive.
May not work correctly.
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.
When testing ____, you should apply your vehicle's brakes with the hand control while moving the vehicle forward slowly.
1. The Anti-Lock Braking System
2. The emergency braking system
3. The trailer service brakes
1. The Anti-Lock Braking System
2. The emergency braking system
3. The trailer service brakes
The trailer service brakes
If you need to back your trailer but cannot back up in a straight path, you should:
1. Back toward the passenger's side.
2. Back toward the driver's side.
3. Swerve back and forth while backing.
4. Always turn to your right.
1. Back toward the passenger's side.
2. Back toward the driver's side.
3. Swerve back and forth while backing.
4. Always turn to your right.
Back toward the driver's side.
When driving a tractor-trailer equipped with ABS, you should:
1. Stop harder than you would otherwise.
2. Use extra braking force to ensure the ABS kicks in.
3. Brake as you normally would.
4. Brake using less pressure than you would otherwise use.
1. Stop harder than you would otherwise.
2. Use extra braking force to ensure the ABS kicks in.
3. Brake as you normally would.
4. Brake using less pressure than you would otherwise use.
Brake as you normally would.
The trailer hand valve should:
1. Be used for parking.
2. Be used only to test the trailer brakes.
3. Be used together with the brake pedal.
4. Be used on slippery surfaces.
1. Be used for parking.
2. Be used only to test the trailer brakes.
3. Be used together with the brake pedal.
4. Be used on slippery surfaces.
Be used only to test the trailer brakes.
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