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Drivers who want to drive combination vehicles must pass the combination vehicles test. The West Virginia CDL combination test consists of 20 questions, and you'll need at least 16 correct answers to pass (80%). The test covers the combination vehicles section of the West Virginia CDL Manual. Take this practice test now to prepare for the actual WV CDL combination test!
1. To prevent rollover, drivers of combination vehicles should:
keep the cargo as close to the ground as possible.
make sure the cargo is not centered and spread out.
keep the load is to one side.
brake while turning.
2. The use of brakes on a steep downgrade is:
a supplement to the braking effect of the engine.
dangerous, and should be avoided at all costs.
the main braking factor.
much more effective than the engine braking effect.
3. To prevent rollover, you should:
go slowly around turns.
drive slowly around on ramps and off ramps.
keep the cargo as close to the ground as possible.
All of the above.
4. When connecting the glad hands, you should press the two seals together with the couplers at a ______ angle to each other.
45 degree
30 degree
90 degree
180 degree
5. A red triangle with an orange center means:
Law enforcement vehicle
Slow-moving vehicle
Liquid tanker
The vehicle is hauling hazardous materials
6. When more cargo is piled up in a truck, the center of gravity moves:
to the right side of the truck.
closer to the ground.
to the left side of the truck.
higher up from the road.
7. In a vehicle with a dual air brake system:
one system supplies air to the trailer.
each system has its own air tanks.
both systems typically operate the regular brakes on the rear axle.
All of the above.
8. If your vehicle thumps or vibrates heavily, it may be a sign that:
the engine belt is loose.
you need to shift up.
the brakes have failed.
one of the tires has gone flat.
9. If are being followed closely, you should:
increase your following distance.
flash your brake lights.
change lanes quickly.
decrease your following distance.
10. Fully loaded rigs:
are less likely to roll over than empty rigs.
are just as likely to roll over as empty rigs.
are much more likely to roll over than empty rigs.
None of the above.
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CDL Combination Test (WV)

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