2026 Free Arizona DMV Class A Combination Test 1 (20 Questions And Complete Answers)
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When coupling, after you've connected the air lines to the trailer, you should:
1. Supply air to the trailer.
2. Activate the emergency brake.
3. Disconnect the glad hands.
1. Supply air to the trailer.
2. Activate the emergency brake.
3. Disconnect the glad hands.
Supply air to the trailer.
Keeping cargo centered on a rig can:
1. Help you drive faster.
2. Prevent a rollover.
3. Make turns more dangerous.
1. Help you drive faster.
2. Prevent a rollover.
3. Make turns more dangerous.
Prevent a rollover.
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.
Which of the following will not help prevent a rig from rolling over?
1. Keeping the cargo as close to the ground as possible
2. Driving slowly around turns
3. Driving on the shoulder of a road
1. Keeping the cargo as close to the ground as possible
2. Driving slowly around turns
3. Driving on the shoulder of a road
Driving on the shoulder of a road
How much space should be between the upper and lower fifth wheel?
1. About five inches of space
2. A maximum of two inches of space
3. No space
1. About five inches of space
2. A maximum of two inches of space
3. No space
No space
A trailer that is too high:
1. May not couple correctly.
2. Will couple securely.
3. Is not an issue.
1. May not couple correctly.
2. Will couple securely.
3. Is not an issue.
May not couple correctly.
The best way to recognize that your trailer has started to skid is by:
1. Seeing other drivers' faces.
2. Checking the trailer in your mirrors.
3. Feeling the trailer move.
1. Seeing other drivers' faces.
2. Checking the trailer in your mirrors.
3. Feeling the trailer move.
Checking the trailer in your mirrors.
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
During a trip, landing gear should be:
1. Completely raised.
2. Completely lowered.
3. Skimming the pavement.
1. Completely raised.
2. Completely lowered.
3. Skimming the pavement.
Completely raised.
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
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