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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.
When backing with a trailer, you should:
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look at your line of travel before you begin backing.
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make pull-ups to re-position your vehicle as needed.
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check your mirrors on both sides frequently.
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All of the above.
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2.
What is a tractor jackknife?
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When the rear wheels of a trailer lock up, and the tractor swings around.
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When the wheels of a trailer lock up, and the trailer swings around.
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When a drive-wheel skid lets the trailer push the towing vehicle sideways.
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None of the above.
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3.
Overloading a vehicle with cargo can have negative effects on all of the following except:
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Braking
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Speed control
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Weight limits
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Steering
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4.
Emergency lines on combination vehicles are often coded with the color ____ to keep from getting them mixed up with the ____ service line.
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red; blue
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red; yellow
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yellow; black
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blue; red
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5.
When driving trucks with trailers, drivers should:
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avoid making sudden movements with the steering wheel.
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make quick lane changes.
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decrease their following distance.
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push the brake pedal to the floor when braking.
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6.
Rollovers happen when drivers:
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brake too hard.
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turn too fast.
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turn too slowly.
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stop too often.
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7.
Which of the following is NOT part of testing the tractor protection valve?
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Pulling forward slowly, then applying the trailer brakes.
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Shutting off the engine.
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Stepping on and off the brake pedal several times to reduce the air pressure in the tanks.
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Charging the trailer air brake system.
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8.
The best way to recognize that your trailer has started to skid is:
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by seeing it in your mirrors.
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by hearing squeaking noises from the wheels.
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by using retarders.
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None of the above.
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9.
Do not use the trailer hand valve in driving because:
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the trailer emergency brakes will come on.
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of the danger of making the trailer skid.
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the brakes can overheat and lose their braking power.
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All of the above.
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10.
Most heavy vehicles require ________ change gears.
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single clutching
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double clutching
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double shifting
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triple shifting
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