2026 Nevada DMV Combination Test Class A Test 1 (20 Questions And Complete Answers)
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A loss of air pressure in the emergency line will cause:
1. The suspension springs to extend.
2. The tractor protection valve to open.
3. The rear trailer to detach from the combination.
4. The emergency brakes to activate.
1. The suspension springs to extend.
2. The tractor protection valve to open.
3. The rear trailer to detach from the combination.
4. The emergency brakes to activate.
The emergency brakes to activate.
Combination vehicles:
1. Are usually shorter than single commercial vehicles.
2. Usually require less skill to drive than single commercial vehicles.
3. Usually require more skill to drive than single commercial vehicles.
1. Are usually shorter than single commercial vehicles.
2. Usually require less skill to drive than single commercial vehicles.
3. Usually require more skill to drive than single commercial vehicles.
Usually require more skill to drive than single commercial vehicles.
To help prevent rollovers, you should:
1. Accelerate quickly after stopping.
2. Drive slowly around turns.
3. Keep the load near the back of the trailer.
4. Keep the load on one side of the trailer.
1. Accelerate quickly after stopping.
2. Drive slowly around turns.
3. Keep the load near the back of the trailer.
4. Keep the load on one side of the trailer.
Drive slowly around turns.
When coupling a trailer:,,,,
1. Make sure to couple matching glad hands.
2. Any glad hand can be connected to any other glad hand.
3. It is best to leave one glad hand unattached.
4. Only one set of glad hands should be connected.
1. Make sure to couple matching glad hands.
2. Any glad hand can be connected to any other glad hand.
3. It is best to leave one glad hand unattached.
4. Only one set of glad hands should be connected.
Make sure to couple matching glad hands.
When backing a trailer, you must first turn the steering wheel:
1. In the direction you want the trailer to go.
2. In the direction opposite of where you want the trailer to go.
3. To the left.
1. In the direction you want the trailer to go.
2. In the direction opposite of where you want the trailer to go.
3. To the left.
In the direction opposite of where you want the trailer to go.
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.
Before a drive, ensure that air flows to all trailers by:...
1. Opening the rear shut-off valves and listening for escaping air.
2. Closing the rear shut-off valves and listening for escaping air.
3. Disconnecting air supply lines and listening for escaping air.
4. Rolling each trailer down a hill and testing the brakes.
1. Opening the rear shut-off valves and listening for escaping air.
2. Closing the rear shut-off valves and listening for escaping air.
3. Disconnecting air supply lines and listening for escaping air.
4. Rolling each trailer down a hill and testing the brakes.
Opening the rear shut-off valves and listening for escaping air.
When coupling a trailer, you should:
1. Couple together the proper glad hands.
2. Couple glad hands with any other glad hands.
3. Leave one pair of glad hand loose.
1. Couple together the proper glad hands.
2. Couple glad hands with any other glad hands.
3. Leave one pair of glad hand loose.
Couple together the proper glad hands.
If a trailer is too high:
1. It will not make a difference when coupling.
2. It may not couple correctly.
3. Coupling will be more secure.
4. Coupling will be easier.
1. It will not make a difference when coupling.
2. It may not couple correctly.
3. Coupling will be more secure.
4. Coupling will be easier.
It may not couple correctly.
If a trailer begins to jackknife, the driver:
1. Should not apply the trailer hand brake.
2. Should firmly apply the brakes.
3. Can straighten the trailer with the parking brake.
1. Should not apply the trailer hand brake.
2. Should firmly apply the brakes.
3. Can straighten the trailer with the parking brake.
Should not apply the trailer hand brake.
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