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Driving Test
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Driving Test
Missouri
Missouri CDL Combination 2
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Q.1
Submit
When coupling a trailer, you should:
Couple together the proper glad hands.
Couple glad hands with any other glad hands.
Leave one pair of glad hand loose.
Q.2
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If a trailer begins to skid, it is best for the driver to:
Release the brakes.
Accelerate.
Quickly turn the steering wheel in one direction, then in the other.
Q.3
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What is a tractor protection valve?
A valve to keep air in the brake system should there be a bad leak
A valve that prevents a truck from being stolen
A valve that prevents the driver from driving too fast
Q.4
Submit
When braking while pulling a trailer equipped with anti-lock brakes, you should:
Pump the brakes.
Use extra braking force to ensure the brakes kick in.
Brake as you would without anti-lock brakes.
Q.5
Submit
When backing up while coupling a trailer, the tractor should be positioned:
Directly in front of the trailer.
Directly next to the trailer.
Parallel with the trailer.
Q.6
Submit
When driving with trailers, you should:
Make quick, sudden changes.
Avoid making sudden moves.
Accelerate by pushing the accelerator to the floor.
Q.7
Submit
All trailers made after ____ must be equipped with Anti-Lock Braking Systems (ABS).
1943
1998
2009
Q.8
Submit
If a trailer begins to jackknife, the driver:
Should not apply the trailer hand brake.
Should firmly apply the brakes.
Can straighten the trailer with the parking brake.
Q.9
Submit
When braking with ABS, you should:
Push the brake pedal harder than usual.
Push the brake pedal as you normally would.
Push the brake pedal more lightly than usual.
Q.10
Submit
If you must cross traffic while driving a combination vehicle, you should:
Assume other drivers will make room for your vehicle.
Wait for a gap large enough for your vehicle to safely cross.
Rely only on your mirrors.
Q.11
Submit
When glad hands are coupled, the seals should be pressed together at a ____ angle.
50-degree
180-degree
90-degree
Q.12
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When coupling, after you've connected the air lines to the trailer, you should:
Supply air to the trailer.
Activate the emergency brake.
Disconnect the glad hands.
Q.13
Submit
The trailer hand valve should not be used while you are driving because:
It will disconnect from the vehicle.
You will stop the vehicle too quickly.
It can cause a skid.
Q.14
Submit
When you are pulling a trailer, the air supply control lever should be in its ____ position.
Emergency
Supply
Normal
Q.15
Submit
If your vehicle gets stuck on railroad tracks, you should:
Sit in the cab and call for help.
Exit the cab and walk away from the tracks.
Motion for another driver to push your vehicle.
Q.16
Submit
What does an Anti-Lock Braking System (ABS) do?
It allows a vehicle's wheels to lock up.
It prevents a vehicle's wheels from locking up.
It makes turning a vehicle easier.
Q.17
Submit
Maintain a following distance of at least ____ for every 10 feet of your vehicle if you are traveling at a speed under 40 mph.
One second
Two seconds
Three seconds
Q.18
Submit
When coupling a trailer:
Make sure to couple the proper glad hands.
Glad hands can be connected to any other glad hands.
Only one set of glad hands should be connected.
Q.19
Submit
To help prevent a rollover, cargo should be:
Placed as high as possible inside a trailer.
Placed as low as possible inside a trailer.
Placed on the driver’s side of a trailer.
Q.20
Submit
Combination vehicles are usually:
Easier to drive than single commercial vehicles.
Lighter than single commercial vehicles.
More difficult to drive than single commercial vehicles.
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