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Montana CDL Permit Test - Combination
(From the 2021 Montana 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 Montana 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 have 20 minutes to correctly answer a minimum of 16 questions. The Combination test is not a replacement for the Double/Triple endorsement test.
Passing grade —
4 or fewer errors
advertising
1.
The ____ trailer is the most likely to turn over if a driver takes a turn too quickly.
2.
The emergency air line:
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Is controlled by the foot brake.
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Is connected to the relay valves.
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Supplies air to the trailer air tanks.
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Prevents skids.
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3.
If a trailer begins to jackknife, you should not:
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Release the brakes.
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Apply the trailer hand brake.
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Allow the wheels to grip the road.
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Allow the trailer to straighten out.
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4.
The trailer hand valve should be used:
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To test the trailer brakes.
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To check the connection between the trailer and tractor.
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To accelerate.
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5.
When you are pulling a trailer, the air supply control lever should be in its ____ position.
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Emergency
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Supply
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Normal
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6.
When braking with ABS, you should:
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Push the brake pedal harder than usual.
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Push the brake pedal as you normally would.
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Push the brake pedal more lightly than usual.
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7.
A driver should test the tractor protection valve by:
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Pulling the yellow, diamond-shaped knob.
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Releasing air with the brake pedal.
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Unlocking the trailer doors.
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