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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. If the engine catches fire, you should:
avoid shooting foam from the vehicle's underside.
open the hood as soon as you can.
pull into a service station and notify the emergency services.
turn off the engine as soon as you can.
2. With low beams, drivers can see ahead about:
250 feet
15 feet
150 feet
100 feet
3. Which of the following will off-track the most?
The rear wheels of the last trailer.
The front wheels of the last trailer.
The rear wheels of the tractor.
The front wheels of the tractor.
4. Why should you back toward the driver's side?
You can more easily correct any steering errors.
Using double clutching requires practice.
You can see better and watch the rear of your vehicle by looking out the side window.
All of the above.
5. If an aggressive driver is involved in an accident down the road, you should:
stop a safe distance from the accident scene, wait for the police and report the behavior you witnessed.
confront the aggressive driver.
try to get their vehicle to the side of the road.
make eye contact with the driver.
6. When driving at night you should dim your lights when following another vehicle within:
50 feet.
100 feet.
500 feet.
1 mile.
7. When parked on the side of the road, you should:
use the 4-way emergency flashers.
turn off all lights.
flash your brake lights.
activate the right turn signal.
8. To prevent rollover, you should:
drive on the shoulder of the road when possible.
drive slowly around corners.
drive in the left lane.
turn the engine off while turning.
9. When driving double and triple trailers, drivers should:
look far ahead.
allow more following distance.
steer gently and go slowly around corners.
All of the above.
10. Strong winds can make it difficult to stay in your lane, especially when:
driving at speeds below 40 mph.
coming out of tunnels.
driving alongside other vehicles.
going into tunnels.
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WV Doubles Triples 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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