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1 psi
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2 psi
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3 psi
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Iowa CDL Permit Test - Knowledge Test Class A
(From the 2020 Iowa CDL driver handbook)
| Number of questions: | 50 |
| Passing score: | 40 |
Directions:
This license is required for driving any legal combination of vehicles, with a gross combination weight rating of 26,001 pounds or more, provided the GVWR of a trailer exceeds 10,000 pounds To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Each question has three possible answer choices. Test questions come from the Iowa Commercial Driver License Manual. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Combination, Doubles and Hazardous Materials. Endorsements that may be used with a Class A CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.
Passing grade —
10 or fewer errors
advertising
1.
The leakage rate for a single vehicle with air brakes should be no more than ____ in one minute during a static leakage test.
2.
Causing a fatality through negligent operation of a CMV will result in the loss of your CDL for a minimum of:
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One month.
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Six months.
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One year.
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3.
When loading cargo, it is important to:
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Stack items as high as possible.
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Know the weight capacity rating of the suspension system.
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Place light items underneath heavier items.
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4.
If you’re not sure what to do to extinguish a fire in your vehicle, you should:
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Use water.
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Stay inside the vehicle.
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Wait for the firefighters.
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5.
A truck should be parked:
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So that it must be backed up to leave the space.
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So that it can be pulled forward to leave the space.
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On the grass.
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6.
An Individual Vehicle Distance Record (IVDR) does not need to include which of the following?
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The dates of a trip
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The total distance traveled
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The number of vehicles passed
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7.
Most heavy vehicles use the ____ method when changing gears.
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Double clutching
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Double shifting
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Triple clutching
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