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Rely only on the passenger’s side mirror.
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Try to back up quickly.
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Turn toward the passenger’s side whenever possible.
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Use a helper, if possible.
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Wisconsin CDL Permit Test - Double
(From the 2021 Wisconsin 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 or four possible answer choices. Test questions come from the Wisconsin 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.
When backing, it is best to:
2.
Air storage tanks:
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Are not allowed on a vehicle.
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Hold compressed air for the brakes.
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Should be drained of excess air after every trip.
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3.
A truck tractor built after March 1, 1997 must be equipped with:
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An Anti-Lock Braking System (ABS).
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A flag.
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Hydraulic brakes.
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4.
You are especially likely to encounter strong winds when:
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Coming out of tunnels.
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Going into tunnels.
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Driving on shoulders.
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5.
If you have an engine fire, you should:
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Open the hood as soon as possible.
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Turn off the engine as soon as possible.
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Not use a fire extinguisher.
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6.
To make it as safe as possible to leave a stop, you should park:
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So that you must back up to leave your parking space.
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So that you can pull forward to leave your parking space.
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On the side of a roadway, not in a parking lot.
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By backing into a parking space.
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7.
To ensure that you do not slow down traffic when driving a large truck, you should:
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Switch gears while driving uphill.
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Try to pass another vehicle while driving uphill.
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Stay in the right lane whenever possible.
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