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California CDL Permit Test - Double

Number of questions: 15
Passing score: 11
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 15 multiple choice questions. Each question has three answer choices. To pass, the applicant must answer at least 12 questions correctly. Test questions come from the California Commercial Driver Handbook. 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.
You have made error so far
Passing grade —
4 or fewer errors
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1.
When driving under wet conditions, a lack of spray coming from the tires of other vehicles indicates that:
Ice has formed on the road.
The pavement is dry.
The spray is caught on the underside of the vehicle.
2.
A hazardous materials placard may be no smaller than:
Four square inches.
Seven square inches.
10 ¾ square inches.
3.
When backing with a trailer, you should begin by:
Turning the steering wheel in the direction of the turn.
Turning the steering wheel in the direction opposite of the turn.
Turning the wheel as sharply as possible.
4.
Drowsy driving is most common during:
The night.
The early morning.
The mid-afternoon.
5.
When backing a truck, you should:
Only use the side mirrors on the driver’s side of the vehicle.
Use both side mirrors.
Not use a helper.
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