2026 Michigan DMV Combination Class A Test 2 (20 Questions And Complete Answers)
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The service air line is often controlled by the foot brake and is attached to the ____ valves.
1. Relay
2. Supply
3. Emergency
1. Relay
2. Supply
3. Emergency
Relay
More than half of all accident-related truck driver deaths are caused by:
1. Rollovers.
2. Slippery roads.
3. Other drivers.
1. Rollovers.
2. Slippery roads.
3. Other drivers.
Rollovers.
If an air supply control is in its "emergency" position:
1. The vehicle will increase speed.
2. The trailer emergency brakes will be applied.
3. The air supply to the trailer will increase.
1. The vehicle will increase speed.
2. The trailer emergency brakes will be applied.
3. The air supply to the trailer will increase.
The trailer emergency brakes will be applied.
In a double or triple combination, the ____ trailer should be directly behind the cab.
1. Lightest
2. Heaviest
3. Smallest
1. Lightest
2. Heaviest
3. Smallest
Heaviest
Keeping cargo low can:
1. Prevent a rollover.
2. Help you drive faster.
3. Make turns more dangerous.
1. Prevent a rollover.
2. Help you drive faster.
3. Make turns more dangerous.
Prevent a rollover.
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.
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
The trailer hand valve:
1. Should always be used for parking.
2. Should only be used for parking on a downgrade.
3. Should never be used for parking.
1. Should always be used for parking.
2. Should only be used for parking on a downgrade.
3. Should never be used for parking.
Should never be used for parking.
All trailers made after ____ must be equipped with Anti-Lock Braking Systems (ABS).
1. 1943
2. 1998
3. 2009
1. 1943
2. 1998
3. 2009
1998
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.
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