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Drivers who want to drive combination vehicles must pass the combination vehicles test. The Montana CDL combination test consists of 20 questions, and you'll need at least 16 correct answers to pass (80%). The test covers the combination vehicles section of the Montana CDL Manual. Take this practice test now to prepare for the actual MT CDL combination test!
1. You should use chocks when parking a trailer without spring brakes because:
it helps prevent brake failure.
it is required by law.
it helps prevent skids.
the brakes will hold only as long as there is air pressure in the trailer air tank.
2. Which of the following is not a reason for covering cargo?
To protect the cargo from weather
To protect people from spilled cargo
To prevent other drivers from looking at the cargo
All of the above.
3. When the trailer breaks away or develops a bad leak, the tractor protection valve will close automatically and:
the trailer supply valve will stay open.
the engine will shut down.
the trailer emergency brakes will come on.
the tractor will lose all air pressure.
4. When you get ready to back under the semi-trailer, you should:
line up directly in front of the trailer.
line up about 15 degrees off the line of the trailer.
line up the kingpin to engage the driver's side locking jaw first.
back under the trailer at an angle to avoid pushing the trailer sideways.
5. When checking your tires during a pre-trip inspection, which of the following is acceptable?
Tires made by different manufacturers
Dual tires that come in contact with parts of the vehicle
Cracks in the tires
Mismatched sizes
6. Tar in the road pavement rising to the road surface in very hot weather:
does not affect the road surface or driving conditions.
might get in your engine.
causes the road to become very slippery.
is very sticky and will slow down your vehicle.
7. If the drive wheels begin to spin when accelerating, you should:
continue to accelerate.
take your foot off the accelerator.
brake gently.
set the parking brake.
8. When you use your mirrors while driving on the road, you should:
only use the driver's side mirror.
check them quickly.
stare for a long time at the mirror.
avoid checking them regularly.
9. You have uncoupled a trailer and want to inspect the landing gear. The tractor should be positioned:
with the tractor frame under the trailer.
with the tractor frame above the trailer.
completely clear of the trailer.
None of the above.
10. To be in the proper position for coupling, the fifth wheel should:
have its jaws closed around the shank of the kingpin.
tilted up towards the rear of the tractor.
be level with the ground.
be tilted down towards the rear of the tractor.
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MT CDL Combination Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
Number of questions: 20
Correct answers to pass:16
Passing score:80%
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