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Drivers who want to drive combination vehicles must pass the combination vehicles test. The 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 Virginia CDL Manual. Take this practice test now to prepare for the actual VA CDL combination test!
1. In your mirror, you see a car approaching from the rear. The next time you check your mirror, you don't see the car. If you wish to change lanes, you should:
wait until you are sure the car isn't in your blind spot.
ease into the other lane slowly so the other car can get out of the way.
assume the car left the roadway and change lanes as normal.
2. If you are driving a 30 foot vehicle at 35 mph, you should leave at least _______ between your vehicle and the vehicle in front of you.
4 seconds
2 seconds
3 seconds
3. Which of the following makes a rollover more likely?
Driving quickly around turns
Keeping the load centered on your rig
Keeping the cargo as close to the ground as possible
4. Glad hands are:
coupling devices.
securement devices.
warning devices.
5. You are coupling a tractor to a semi-trailer and have backed up but are not yet under the trailer. Before backing under the semi-trailer, you should hook up:
the emergency and service air lines.
the safety chain.
the electrical service cable.
6. If your truck has automatic transmission, you should downshift:
whenever road conditions allow.
when going down grades.
after entering a curve.
7. The tractor protection valve:
controls the emergency brakes on combination vehicles.
keeps air in the tractor brake system should the trailer break away or develop a bad leak.
supplies air to the trailer air tanks.
8. If the spring brakes do not release when you push the trailer air supply control, you should:
check the air line connections.
check the electrical cables.
rev or lug the engine.
9. Where are shut-off valves?
At the front and back of each trailer.
At the front of each trailer.
At the back of each trailer.
10. When backing a trailer, you should:
turn the steering wheel toward the direction you want to go.
try to position your vehicle so you can back on a curved path.
turn the steering wheel in the opposite direction of the turn.
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VA Combination Test

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