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Drivers who want to drive combination vehicles must pass the combination vehicles test. The Nevada 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 Nevada CDL Manual. Take this practice test now to prepare for the actual NV CDL combination test!
1. Glad hands are:
electronic devices.
coupling devices.
securement devices.
warning devices.
2. To test the service brake:
push the brake pedal firmly while going about 5 mph.
gently try to pull forward with the trailer parking brake on, then release the brake.
shift your transmission to a low gear, pump the brake pedal three times, then hold it down for five seconds.
push the brake pedal firmly while slowly moving backward.
3. Air brakes:
can improve fuel efficiency.
are prohibited on larger vehicles.
are an effective way to stop large and heavy vehicles.
should be used only when driving on wet roads.
4. When backing a trailer, you should:
never make pull-ups to reposition your vehicle.
turn the steering wheel in the direction you want to go.
avoid correcting the drift.
try to position your vehicle so you can back in a straight line.
5. Strong winds can make it difficult to stay in your lane especially when driving:
flatbed trailers.
vehicles with ABS.
lighter vehicles.
heavier vehicles.
6. When the tractor protection valve closes, the trailer _______ brakes will come on.
7. The posted speed limit:
may only be exceeded when driving in rural areas.
is only a suggestion.
should never be exceeded.
should only be exceeded when passing other vehicles.
8. As part of your vehicle inspection, you are checking that air flows to all trailers. After using the trailer handbrake to provide air to the service line, you go to the rear of the rig. When you open the emergency line shut-off valve at the rear of the last trailer, you should hear:
a thumping sound.
a mechanical vibration.
air escaping from the open valve.
the service line valve close.
9. When driving on slippery surfaces, you should:
change lanes often.
make turns as quickly as possible.
not pass slower vehicles unless necessary.
All of the above.
10. After a tire has been changed, you should:
wait at least 30 minutes before driving.
deflate the tire to 15 psi.
stop a short while later and check that the nuts are tight.
decrease tire pressure.
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NV CDL Combination 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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