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It has rained recently.
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The nuts could be loose.
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The tires should be replaced.
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Missouri CDL Permit Test - Double
(From the 2021 Missouri CDL driver handbook)
| Number of questions: | 20 |
| Passing score: | 16 |
Directions:
This endorsement is required if the driver will pull two or three trailers. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. To pass, the applicant must answer at least 16 questions correctly. Each question has three possible answer choices. Test questions come from the Missouri Commercial Driver’s Manual. Questions come from chapters covering: Driving Safely, Air Brakes (if applicable), Combination Vehicles and Doubles and Triples. The Double/Triple endorsement can be used with the Class A CDL.
Passing grade —
4 or fewer errors
advertising
1.
Rust around wheel nuts may mean:
2.
The more alcohol in the body:
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The quicker the liver will digest the alcohol.
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The less effect the alcohol will have on the individual.
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The longer it will take to remove the alcohol from the body.
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3.
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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4.
In poor weather, many drivers:
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Like to drive in front of trucks.
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Like to drive to the sides of trucks.
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Like to follow trucks.
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5.
Traction is important in:
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Safe braking.
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Properly using turn signals.
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Operating the horn.
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6.
When should you slow for a curve?
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Before entering the curve
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While in the curve
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After the curve
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7.
Mirrors should be used:
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Only when there may be an emergency.
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Regularly.
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By a helper to monitor your blind spots.
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