2026 Mississippi DMV Combination Class A Test 2 (20 Questions And Complete Answers)
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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 combination vehicle has:
1. One air line.
2. Two air lines.
3. Three air lines.
4. Four air lines.
1. One air line.
2. Two air lines.
3. Three air lines.
4. Four air lines.
Two air lines.
If a parked trailer does not have spring brakes, you should keep the trailer from moving by':
1. Using the air brakes.
2. Using wheel chocks.
3. Parking near a wall.
4. Parking on a slight incline.
1. Using the air brakes.
2. Using wheel chocks.
3. Parking near a wall.
4. Parking on a slight incline.
Using wheel chocks.
Combination vehicles need extra space on the road because they:
1. Drive more slowly than other commercial motor vehicles.
2. Are heavier than other commercial motor vehicles.
3. Need more space to turn and stop than other commercial motor vehicles.
1. Drive more slowly than other commercial motor vehicles.
2. Are heavier than other commercial motor vehicles.
3. Need more space to turn and stop than other commercial motor vehicles.
Need more space to turn and stop than other commercial motor vehicles.
What can the “crack-the-whip” effect do?
1. Turn over trailers.
2. Make loud noises.
3. Make trucks accelerate.
4. Make trucks decelerate.
1. Turn over trailers.
2. Make loud noises.
3. Make trucks accelerate.
4. Make trucks decelerate.
Turn over trailers.
Rollovers happen when:
1. Drivers turn too quickly.
2. Drivers turn too slowly.
3. It is raining.
1. Drivers turn too quickly.
2. Drivers turn too slowly.
3. It is raining.
Drivers turn too quickly.
What does the trailer air supply control look like?
1. It is a square blue knob.
2. It is a triangular yellow knob.
3. It is an eight-sided red knob.
4. It is a circular orange knob.
1. It is a square blue knob.
2. It is a triangular yellow knob.
3. It is an eight-sided red knob.
4. It is a circular orange knob.
It is an eight-sided red knob.
Large combination vehicles take the longest amount of time to stop:
1. When fully loaded.
2. When partially loaded.
3. When empty.
4. When mostly loaded.
1. When fully loaded.
2. When partially loaded.
3. When empty.
4. When mostly loaded.
When empty.
During a trip, the ____ should be open.
1. Rear service line shut-off valve
2. Rear supply line shut-off valve
3. Inner shut-off valves
1. Rear service line shut-off valve
2. Rear supply line shut-off valve
3. Inner shut-off valves
Inner shut-off valves
Look into the back of the fifth wheel:
1. While testing your air brakes.
2. If your vehicle begins to skid.
3. When inspecting a coupling.
1. While testing your air brakes.
2. If your vehicle begins to skid.
3. When inspecting a coupling.
When inspecting a coupling.
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