New Jersey cdl Double - Test 1
Number of questions: 20
Passing score: 80%
Acceptable number of errors: 4
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 New Jersey Commercial Driver Guide. 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.
To DMV Handbooks17. When starting the engine of a truck with a trailer, how can you tell if the Anti-Lock Braking System (ABS) is not working?
The yellow light on the rear of the trailer will stay on.
The red light on the trailer will flash three times and then stay on.
All the rear lights on the trailer will flash and then shut off.
The blue light near the driver's door will light.