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The trailer doors should be opened.
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The trailer doors should not be opened.
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A large, heavy blanket should be put over the trailer.
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Oregon CDL Permit Test - Double
(From the 2021 Oregon 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 Oregon Commercial Driver 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 there is a cargo fire in a box trailer:
2.
Which of the following is not a problem?
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Loose or broken exhaust pipes
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Loose or broken mounting brackets
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Exhaust parts rubbing against fuel system parts
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Exhaust system parts that are not leaking
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3.
When driving a vehicle equipped with an Anti-Lock Braking System (ABS), brakes should be applied:
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In the same way as they would be in a vehicle without ABS.
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As the vehicle is placed in neutral.
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With the hand brake.
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4.
When traveling at speeds under 40 mph, you should maintain at least ____ of following distance for every 10 feet of your vehicle's length.
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One second
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Two seconds
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Three seconds
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5.
A driver should always:
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Stay in their lane.
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Have an emergency plan.
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Stay in the left lane.
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Drive above the speed limit.
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6.
Off-ramps:
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Are usually safest for trucks.
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Can be dangerous for trucks.
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Should not be used by trucks.
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7.
When driving:
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It is best to hide your intentions from others.
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You should only use turn signals if there are vehicles near you.
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You should not use turn signals in construction zones.
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You should always use turn signals to warn others about your intentions.
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