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Are necessary for the proper function of the system.
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|
|
Should take up about 10 percent of the tank.
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|
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Should be removed regularly.
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Connecticut CDL Permit Test - Double
(From the 2021 Connecticut 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 or four possible answer choices. Test questions come from the Connecticut 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.
Some water and compressor oil is usually found in the compressed air within an air brake system. The water and compressor oil:
2.
Rollovers happen when:
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Drivers turn too quickly.
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Drivers turn too slowly.
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It is raining.
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3.
Brakes can get out of adjustment quickly, especially:
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If they are hot.
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In the winter time.
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If they are used frequently.
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4.
If feeling sleepy while driving, you should:
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Press on and finish the trip.
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Drive faster to arrive to your destination sooner.
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Leave the road and take a nap.
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Take an energy pill.
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5.
Maintaining a cushion of space between your vehicle and the vehicle ahead is:
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Not encouraged, as it slows the flow of traffic.
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Encouraged, as it allows you time to react to unexpected hazards.
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Only encouraged if you are traveling with a passenger.
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6.
During an applied leakage test, the maximum leakage rate for a triple combination vehicle is:
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10 psi in a minute.
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8 psi in a minute.
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6 psi in a minute.
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4 psi in a minute.
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7.
What is Gross Combination Weight?
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The total weight of the powered unit, trailer, and cargo
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The total weight of a single vehicle without its load
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The maximum weight allowed by the manufacturer
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