Instructions

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 20

Passing Score 16

1. The use of a hand-held mobile device while driving is:

Prohibited.

Acceptable if weather conditions are clear.

Permitted if use is work-related.

Using a hand-held mobile telephone while operating a CMV is both illegal and dangerous.

2. Air tank drains:

Should not be used in cold weather.

Are helpful to remove water and oil from the air tanks.

Are used to move air to the brakes.

Compressed air in an air brake system usually has a certain amount of water and oil in it. This can harm the system if allowed to accumulate. Air tanks have drain valves to aid in removing water and oil from the compressed air.

3. How can you tell if a converter dolly is equipped with anti-lock brakes?

The dolly is marked with a sticker displaying the letters "ABS."

There is a plaque on the side of the dolly containing the information.

There is a yellow lamp on the left side of the dolly.

Converter dollies built on or after March 1, 1998 are required to have Anti-Lock Braking Systems (ABS). The presence of ABS will be indicated by a yellow lamp on the left side of the dolly.

4. When traveling down a steep grade, you switch into a lower gear:

Before beginning the grade.

When you have already started the grade.

As far down the grade as possible.

You should shift your vehicle's transmission into a low gear before staring a downhill grade. Be prepared for gravity to increase your vehicle's speed when traveling downhill.

5. Which of the following is not a sign of fatigue?

Difficulty focusing, with frequent blinking

Yawning repeatedly or rubbing eyes

Staying in your lane

Potential warning signs of fatigue include difficulty focusing, frequent blinking, or heavy eyelids; yawning repeatedly or rubbing your eyes; daydreaming; wandering or disconnected thoughts; trouble remembering the last few miles you've driven; missing exits or traffic signs; having trouble keeping your head up; drifting from your lane; following too closely; hitting a shoulder rumble strip; or feeling restless and irritable.

6. On a slippery surface, stopping distance:

Is longer than on a regular driving surface.

Is not as long as on a regular driving surface.

Is about the same as on a regular driving surface.

A vehicle's regular stopping distance increases on slippery surfaces because there is less available traction.

7. Which of the following is not a sign of a driver becoming tired?

Frequent blinking

Drifting from their lane

Feeling hungry

Potential warning signs of fatigued driving include difficulty focusing; frequent blinking or heavy eyelids; yawning repeatedly or rubbing one's eyes; daydreaming; wandering or disconnected thinking; trouble remembering the last few miles driven; missing exits or traffic signs; having trouble keeping one's head up; drifting from one's lane; following a vehicle too closely; hitting a shoulder rumble strip; and feeling restless or irritable.

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