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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. To prevent rollover, drivers of combination vehicles should:
keep the load is to one side.
make sure the cargo is not centered and spread out.
brake while turning.
keep the cargo as close to the ground as possible.
2. You are driving a heavy vehicle with a manual transmission, and you have to stop on the shoulder while driving on an uphill grade. When putting your vehicle back in motion up the grade, you should:
keep the clutch slipping while slowly accelerating.
shift down to a speed that you can control without using the brakes.
partly engage the clutch before you take your right foot off the brake.
use the parking brake to hold the vehicle until the clutch engages.
3. The center of gravity of a trailer should be:
as low as possible.
at the rear of the trailer.
as high as possible.
at the front of the trailer.
4. To test the tractor-semitrailer connection for security:
pull out the air supply knob.
go under the trailer and look into the back of the fifth-wheel.
plug the electrical cord into the trailer and fasten the safety catch.
check that the trailer is locked onto the tractor by pulling the tractor gently forward while the trailer brakes are still locked.
5. When driving in a construction zone, if a construction worker is near the road, you should:
speed up.
maintain a constant speed.
further reduce your speed.
come to a complete stop.
6. While driving, you should use your mirrors to:
know where other vehicles are around you.
check the condition of the tires and cargo.
check where the rear of your vehicle is while you make turns.
All of the above.
7. You are coupling a semi-trailer to your tractor but have not yet backed under. The trailer is at the right height when:
the end of the kingpin is even with the top of the fifth wheel.
it will be raised slightly when the tractor is backed under it.
the locking jaws are around the head of the kingpin.
None of the above.
8. Which of the following makes a rollover more likely?
Weight that is loaded so there is a high center of gravity.
If the load is to one side so it makes a trailer lean.
Turning too fast.
All of the above.
9. To prevent rollover, you should:
drive slowly around on ramps and off ramps.
go slowly around turns.
keep the cargo as close to the ground as possible.
All of the above.
10. By pushing the trailer air supply control knob in, you:
supply the tires with air.
supply the trailer with air.
keeps air in the tractor or truck brake system.
shut the air off and put on the trailer emergency brakes.
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MT 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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