|
Assume the posted clearance height is accurate.
|
|
|
Assume the posted clearance height is inaccurate.
|
|
|
Measure the height of the opening before proceeding.
|
Virginia CDL Permit Test - Double
(From the 2020 Virginia CDL driver handbook)
| Number of questions: | 20 |
| Passing score: | 16 |
Directions:
This endorsement is required if the driver will pull two or three trailers. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. To pass, the applicant must answer at least 16 questions correctly. Each question has three possible answer choices. Test questions come from the Virginia Commercial Driver License Manual. Questions come from chapters covering: Driving Safely, Air Brakes (if applicable), Combination Vehicles and Doubles and Triples. The Double/Triple endorsement can be used with the Class A CDL.
Passing grade —
4 or fewer errors
advertising
1.
You will often have to drive your vehicle under bridges and overpasses. If approaching such an opening, you should:
2.
A low air pressure warning signal:
|
Is not recommended on vehicles with air brakes.
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|
|
Is required on vehicles with air brakes.
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|
|
Is optional on vehicles with air brakes.
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3.
A driver who stops at a green light could be:
|
An impaired driver.
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|
A driver who is color blind.
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|
|
A person who does not know the rules of the road.
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4.
When leaving your vehicle unattended:
|
The parking brake should be used.
|
|
|
The parking brake only needs to be used if the vehicle is parked on a slope.
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|
|
The parking brake should not be used, as it can damage the tires.
|
5.
When parked on a flat surface, you should:
|
Use wheel chocks to prevent your vehicle from moving.
|
|
|
Not use wheel chocks.
|
|
|
Use wheel chocks, but only if you have applied the parking brake.
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6.
When using a fire extinguisher on a fire, you should:
|
Get as close to the fire as possible.
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Stand as far away from the fire as possible.
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Aim the extinguisher at the top of the fire.
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7.
Hydroplaning:
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Rarely occurs with large trucks.
|
|
|
Usually happens when vehicles are traveling faster than 65 mph.
|
|
|
Can occur with a minimal amount of water on the roadway.
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