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The suspension springs to extend.
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The tractor protection valve to open.
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The rear trailer to detach from the combination.
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The emergency brakes to activate.
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Nevada CDL Permit Test - Combination
(From the 2021 Nevada CDL driver handbook)
| Number of questions: | 20 |
| Passing score: | 16 |
Directions:
All applicants who are applying for a Class A CDL should be prepared to take the Combination test. This test covers information found in Section 6 of the Nevada Commercial Driver License Manual. Section 6 provides the information needed to safely operate tractor-trailers, doubles, triples, and straight trucks with trailers. The test is made up of 20 multiple-choice questions, and applicants will need to correctly answer a minimum of 16 questions to pass. The Combination test is not a replacement for the Double/Triple endorsement test.
Passing grade —
4 or fewer errors
advertising
1.
A loss of air pressure in the emergency line will cause:
2.
Driving a combination vehicle ____ than driving a single vehicle.
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Is easier
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Requires more driving skill
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Is better for training
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Is safer in inclement weather
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3.
When backing up to couple a trailer, you should position the tractor:
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At a 90-degree angle in front of the trailer.
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Directly in front of the trailer.
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At a 30-degree angle in front of the trailer.
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At a 60-degree angle in front of the trailer.
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4.
During a trip, landing gear should be:
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Completely raised.
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Completely lowered.
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Skimming the pavement.
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5.
Rollovers happen when:
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A truck driver is driving too fast.
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The driver of a vehicle in front of a truck is moving to slowly.
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A truck driver is driving too slowly.
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ABS is working effectively.
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6.
What does an Anti-Lock Braking System (ABS) do?
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It allows a vehicle's wheels to lock up.
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It prevents a vehicle's wheels from locking up.
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It makes turning a vehicle easier.
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7.
Keeping cargo low can:
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Prevent a rollover.
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Help you drive faster.
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Make turns more dangerous.
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