New Jersey 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 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.
You have made error so far
Passing grade —
4 or fewer errors
To prevent trailers from rolling over, a driver should do all of the following except:
Steer gently
Go slowly around corners
Go slowly on curves
Exceed the speed limit
How could you reduce your stress while driving?
Drink a caffeinated beverage
Talk on your cell phone
Gesture at other drivers
Listen to calm music
In poor weather, drivers of doubles and triples should:
Lead the way for other vehicles
Drive on the shoulder
Exceed the posted speed limit
Drive carefully as the vehicle is more prone to skidding
When checking the exhaust system, it should be:
Fastened securely
Emergency brakes:
Are not required on trucks
Are only required on trailers
Are required on tractors
Are only required when transporting hazardous materials
If your tractor is equipped with ABS but your trailer is not, the ABS:
Will not be effective.
Will improve your steering control.
Will make jackknifing easier.
Will allow others to see when you brake.
When approaching a railroad crossing:
You will likely be able to outdrive a train.
You should not rely only on warning signals.
You should roll a window down to listen for an approaching train.
You should only worry about the track closest to your vehicle.
Our Latest Videos