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32 feet
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15 feet
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50 feet
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10 feet
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Colorado CDL Permit Test - Double
(From the 2020 Colorado 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 four possible answer choices. Test questions come from the Colorado 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.
If braking at a speed of 55 mph while driving on dry pavement, the brake lag can add ____ to your vehicle's total stopping distance.
2.
When driving a double or triple, it is important to remember that:
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The vehicle requires more space than most other vehicles.
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|
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Other drivers will likely get out of your way when necessary.
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|
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The vehicle likely weighs the same as other vehicles.
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|
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The vehicle can easily fit into small spaces.
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3.
Which of the following is not a part of an air brake system?
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A service brake system
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|
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A parking brake system
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An emergency brake system
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An axle brake system
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4.
Trailers manufactured after ____ must be equipped with Anti-Lock Braking Systems (ABS).
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1943
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|
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1998
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|
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2009
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2015
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5.
When a vehicle is started, warning lights and buzzers:
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Should stay on for several minutes.
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Should turn off within a few seconds.
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Should stay on until manually turned off.
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Should not come on.
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6.
If the brakes “pull” to one side or the other when you use them, it's a sign that:
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The brakes are working properly.
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The brakes need to be checked.
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The brakes are new.
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The brakes have too much stopping power.
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7.
The ____ tells a driver how much pressure is in the air tanks.
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Application pressure gauge
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|
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Air compressor governor
|
|
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Supply pressure gauge
|
|
|
Drum brake
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