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MN CDL COMBINATION PRACTICE TEST

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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. If your brakes get wet, it can cause them:
to grab.
to apply unevenly.
to be weak.
All of the above.
2. It's very important to distribute the cargo so it is:
piled up.
as low as possible.
as high up as possible.
in the centre of the load.
3. Which of these statements is true?
"Bobtail" tractors can take longer to stop than a combination vehicle loaded to maximum gross weight.
Large combination vehicles take longer to stop when they are fully loaded than when they are empty.
Trailer skids are more likely to happen when the trailer is empty or lightly loaded.
All of the above.
4. You are coupling a tractor to a semi-trailer. You have backed up but are not yet under the trailer. Before backing under the semi-trailer, you should:
connect the electrical cord and check the air lines.
begin raising the landing gear.
supply air to the trailer system and lock the trailer brakes.
remove the wheel chocks.
5. A red triangle with an orange center means:
Liquid tanker
Slow-moving vehicle
Law enforcement vehicle
The vehicle is hauling hazardous materials
6. You must check that all shut-off valves are in the open position except the ones:
on the first trailer in a set of triples.
on the middle trailer of a set of triples.
on the first trailer in a set of doubles.
at the back of the last trailer.
7. When you get ready to back under the semi-trailer, you should:
back under the trailer at an angle to avoid pushing the trailer sideways.
line up the kingpin to engage the driver's side locking jaw first.
line up about 15 degrees off the line of the trailer.
line up directly in front of the trailer.
8. To be in the proper position for coupling, the fifth wheel should:
tilted up towards the rear of the tractor.
be tilted down towards the rear of the tractor.
be level with the ground.
have its jaws closed around the shank of the kingpin.
9. When backing a trailer, you should:
turn the steering wheel in the direction you want to go.
try to position your vehicle so you can back in a straight line.
never make pull-ups to reposition your vehicle.
avoid correcting the drift.
10. Brake fade results from, and is affected by:
excessive heat caused by not relying on the engine braking effect.
brakes out of adjustment.
excessive heat caused by using the brakes too much.
All of the above.
 
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MN 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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