Double

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.. Read More

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 possible answer choices. Test questions come from the Rhode Island Commercial Driver License 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.

Number of Question
Passing Score

8. When entering a curve, you should:

Explanation
You should always slow down to a safe speed and shift into a lower gear before entering a curve.

9. A truck should be parked:

Explanation
Because you can't see everything behind you, backing is always dangerous and should be avoided whenever possible. Choose parking spaces from which you can pull forward when you leave.

10. Rough acceleration:

Explanation
Rough acceleration can cause mechanical damage, so be sure to accelerate smoothly and gradually.

11. If an air supply control is in its "emergency" position:

Explanation
Tractor protection controls in older vehicles may be operated by levers instead of knobs. If an air supply control is set in its "emergency" position, the air supply will be stopped and the trailer emergency brakes will be applied.

12. Which of the following is not a good rule when using turn signals?

Explanation
When using your turn signals, you should signal well before the turn or lane change, signal continuously throughout the turn or lane change, and cancel the signal after you have completed your move.

13. While driving, ____ generally holds spring brakes in place.

Explanation
While driving, spring brakes are generally held in place by air pressure. If the air pressure gets low enough, the springs will activate the brakes.

14. To prevent a vehicle from rolling backward when beginning to move forward from a stopped position, you should:

Explanation
To prevent a vehicle with manual transmission from rolling backward when you begin to move forward from a stopped position, you can partly engage the clutch before removing your foot from the brake pedal.
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