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Drivers who want to drive combination vehicles must pass the combination vehicles test. The Minnesota 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 Minnesota CDL Manual. Take this practice test now to prepare for the actual MN CDL combination test!
1. When your vehicle goes around a corner, the rear wheels follow a different path than the front wheels. This is called:
front-rear tracking.
2. Which of the following trailers can get stuck on raised crossings?
Car carrier
Moving van
All of the above.
3. In combination vehicles with air brakes, the trailer air supply control should pop out when the air pressure falls within the range of:
50 to 75 psi
100 to 120 psi
10 to 20 psi
20 to 45 psi
4. Which of the following is NOT TRUE? When you drive a tractor-trailer combination with ABS, you should:
drive slower to keep your vehicle in a straight line.
monitor your tractor and trailer as you slow down, and if it is safe to do so, back off the brakes to stay in control.
use only the braking force necessary to stop safely.
brake the same way, regardless of whether you have ABS on the tractor, the trailer, or both.
5. ABS helps you:
increase your normal braking capability.
avoid wheel lock up and maintain control of your vehicle when you brake.
steer gently and smoothly while you are braking.
stop much faster.
6. If you try to couple when the trailer is too low:
it might not couple correctly.
the tractor could roll away.
the tractor may strike and damage the trailer nose.
All of the above.
7. Which of the following makes a rollover more likely?
If the load is to one side so it makes a trailer lean.
Weight that is loaded so there is a high center of gravity.
Turning too fast.
All of the above.
8. The heavier the vehicle:
the less work the brakes must do to stop it.
the more work the brakes must do to stop it.
the higher the center of gravity will be.
None of the above.
9. If your vehicle thumps or vibrates heavily, it may be a sign that:
one of the tires has gone flat.
you need to shift up.
the brakes have failed.
the engine belt is loose.
10. _________ rigs are much more likely to roll over in an accident than _________ rigs.
Empty ; fully loaded
Fully loaded ; overloaded
Empty ; overloaded
Fully loaded ; empty
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MN CDL Combination Test

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