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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 West Virginia doubles triples test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The WV CDL doubles triples test covers the following sections of the West Virginia CDL Manual: Driving Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Combination Vehicles, Doubles and Triples. Take this WV CDL practice test now to prepare for the actual test!
1. When a combination vehicle goes around a corner:
the front and rear wheels follow a different path.
the rear wheels of the trailer will never off-track.
the driver must keep the rear of your vehicle far away from the curb.
All of the above.
2. You are driving a heavy vehicle with a manual transmission, and you have to stop on the shoulder while driving on an uphill grade. When putting your vehicle back in motion up the grade, you should:
shift down to a speed that you can control without using the brakes.
keep the clutch slipping while slowly accelerating.
use the parking brake to hold the vehicle until the clutch engages.
partly engage the clutch before you take your right foot off the brake.
3. When you push in the red trailer air supply knob, this will:
supply air to the emergency supply lines.
disconnect the air lines from the trailer.
open the emergency line shut-off valve at the rear of the last trailer.
disconnect the electrical connector.
4. When should you be particularly careful about high winds?
When going downhill
When emerging from a tunnel
When driving in winter
When driving at night
5. Rollovers happen when drivers:
stop too often.
brake too hard.
turn too fast.
turn too slowly.
6. When you see you will need to slow down, you can warn drivers behind you by:
slamming on the brakes.
tapping the brakes a few times.
making gestures.
turning on the right turn signal.
7. When driving with more than one trailer, the _______ trailer should be the first one behind the tractor.
8. ABS:
helps you increase your following distance.
helps you increase your average speed.
improves your visibility at night.
does not decrease your stopping distance.
9. What is Gross Vehicle Weight?
The total weight of the cargo
The total weight of a single vehicle, excluding its load
The total weight of a combination of vehicles excluding the load
The total weight of a single vehicle, including its load
10. Longer combination vehicles have the tendency to swing wide on turns. This is called:
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Doubles Triples WV CDL Test

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