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Level with
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Slightly higher than
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Slightly lower than
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Michigan CDL Permit Test - Combination
(From the 2021 Michigan CDL driver handbook)
| Number of questions: | 20 |
| Passing score: | 16 |
Directions:
All applicants who are applying for a Class A CDL should be prepared to take the Combination test. This test covers information found in Section 6 of the Michigan Commercial Driver License Manual. Section 6 provides the information needed to safely operate tractor-trailers, doubles, triples, and straight trucks with trailers. The test is made up of 20 multiple-choice questions, and applicants will need to correctly answer a minimum of 16 questions to pass. The Combination test is not a replacement for the Double/Triple endorsement test.
Passing grade —
4 or fewer errors
advertising
1.
When connecting a converter dolly to a second trailer, the trailer height should be ____ the center of the fifth wheel.
2.
Older trailers are not equipped with spring brakes. This means that if the air supply for a vehicle's air braking system leaks away:
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The trailer will stop normally.
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The trailer will not have brakes.
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The trailer will speed up.
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3.
Trailers with low underneath clearance can present challenges when driving over:
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Bridges.
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Railroad tracks.
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Overpasses.
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4.
When coupling, after you've connected the air lines to the trailer, you should:
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Supply air to the trailer.
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Activate the emergency brake.
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Disconnect the glad hands.
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5.
The ____ trailer is the most likely to turn over if a driver takes a turn too quickly.
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Front
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Last
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Middle
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6.
Combination vehicles need extra space on the road because they:
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Drive more slowly than other commercial motor vehicles.
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Are heavier than other commercial motor vehicles.
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Need more space to turn and stop than other commercial motor vehicles.
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7.
Which of the following will not help prevent a rig from rolling over?
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Keeping the cargo as close to the ground as possible
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Driving slowly around turns
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Driving on the shoulder of a road
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