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Safely pulling double and triple trailers requires knowledge and skill. If you want to pull double or triple trailers, you must add the Doubles/Triples (T) endorsement to your Class A CDL. The Rhode Island doubles triples test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The RI CDL doubles triples test covers the following sections of the Rhode Island CDL Manual: Driving Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Combination Vehicles, Doubles and Triples. Take this RI CDL practice test now to prepare for the actual test!
1. If your brakes fail on a steep mountain downgrade, you should:
stay on the road and keep looking for the next available escape ramp.
slow down until your vehicle comes to a complete stop.
decide what to do as soon as you know your brakes do not work.
2. Pre-trip inspections of doubles and triples should:
take more time than inspecting straight trucks.
be done by the shipper.
take less time than inspecting straight trucks.
3. Which of the following statements is true?
Carrying a properly charged and rated fire extinguisher will help prevent fires.
There is no way that short circuits due to damaged insulation can cause a vehicle fire.
Poor cargo ventilation is a common cause of fire.
4. An ABS system:
helps increase a vehicle's stopping power.
is a safety anti-skid braking system.
requires a change in the way you brake.
5. ABS:
helps you increase your following distance.
does not decrease your stopping distance.
helps you increase your average speed.
6. When checking the lights before driving:
make sure the parking brake is not set.
you should check them from inside the vehicle.
you should turn off the engine.
7. When driving at night, you should use ________ when you can.
emergency flashers
high beams
low beams
8. Drivers transporting cargo are responsible for:
recognizing overloads.
inspecting the cargo.
All of the above.
9. You must have at least 4/32 inch tread depth in every major groove on front tires and at least ___ inch on other tires.
2/32
4/32
1/32
10. If your vehicle is hydroplaning, you should:
speed up.
put the vehicle in reverse.
stay off the brake.
 
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RI CDL Doubles Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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