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Only use the side mirrors on the driver’s side.
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Use both side mirrors.
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Not use a helper.
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Only use the mirror on the passenger's side.
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Colorado CDL Permit Test - Tank
(From the 2021 Colorado CDL driver handbook)
| Number of questions: | 20 |
| Passing score: | 16 |
Directions:
This endorsement is required to haul any liquid or gaseous materials in a tank or tanks having a capacity of 1,000 gallons or more that is either permanently or temporarily attached to the vehicle or chassis. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. Each question has four possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Colorado Commercial Driver License Manual. Questions come from chapters covering: Driving Safely, Tank Vehicles, Hazardous Materials and Combination Vehicles. The Tank endorsement can be used with the Class A, B or C CDL.
Passing grade —
4 or fewer errors
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1.
When backing a truck, you should:
2.
The amount of liquid cargo being loaded into a tank should depend on:
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The speed limits on the route.
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Legal weight limits.
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The color of the cargo.
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The length of the trip.
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3.
During a pre-trip inspection, what is the best method for checking your lights?
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Parking near a mirror to look for a reflection
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Activating the lights, then exiting the vehicle to check
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Looking on the instrument panel to see if any warning lights are illuminated
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Driving in traffic and waiting for other drivers to let you know your lights are out
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4.
Before backing your tractor under the trailer, make sure your trailer brakes are:
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Disengaged.
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Locked.
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Deactivated.
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Dry.
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5.
A person working on a disabled vehicle on the shoulder of a road:
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Will likely pay attention to traffic on the road.
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May be focused on the repair and not paying attention to roadway traffic.
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Is exempt from traffic laws.
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Should not be assisted.
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6.
Carrying liquid cargo:
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Is easier than carrying solid cargo.
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Is more difficult than carrying solid cargo.
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Is illegal.
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Is not permitted during normal business hours.
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7.
After finishing a pre-trip inspection, you should:
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Leave the rear shut-off valves open.
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Remove the service line valve.
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Close the emergency line valve.
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Leave the emergency line valve open.
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