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North Dakota CDL Permit Test - Double

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 four possible answer choices. Test questions come from the North Dakota Commercial Driver Guide. Questions come from chapters covering: Driving Safely, Transporting Cargo Air Brakes (if applicable), Combination Vehicles and Doubles and Triples. The Double/Triple endorsement can be used with the Class A CDL.
You have made error so far
Passing grade —
4 or fewer errors
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1.
Doubles and triples:
Can swerve more easily than most other vehicles.
Should be driven 20 mph slower than posted speed limits.
Require the driver to identify hazards well in advance.
Should not be driven in the rain.
2.
If an Anti-Lock Braking System (ABS) malfunctions:
The driver will not know.
A yellow lamp will light up on the control panel.
The brakes will lock up.
The brakes will not work.
3.
If you are being tailgated, you should:
Drive on the shoulder.
Pull off the roadway.
Drive faster.
Allow the vehicle to pass.
4.
Retreaded tires:
May be used on any part of a bus.
May be used on the front of a bus.
May be used on the rear of a bus.
May never be used on a bus.
5.
To help prevent rollovers, you should:
Accelerate quickly after stopping.
Drive slowly around turns.
Keep the load near the back of the trailer.
Keep the load on one side of the trailer.
6.
If the low pressure warning light comes on while you are driving:
Braking will only occur if there is enough air in the tanks.
You can brake 14 times before the air in the system runs out.
You should continue to drive normally and check the brake system when it is convenient.
You should continue driving, but turn the emergency flashers on to warn other motorists.
7.
Tie-downs are used to:
Prevent cargo from shifting.
Prevent skidding.
Keep doors closed during transit.
Label radioactive materials.
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