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Iowa CDL Permit Test - Passenger

(From the 2019 Iowa CDL driver handbook)
Number of questions: 20
Passing score: 16
Directions: To receive this endorsement, applicants must pass a test consisting of 20 multiple choice questions. Each question has three answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Iowa Commercial Driver License Manual. Questions come from chapters covering: Driving Safely, Transporting Passengers Safely, Pre-Trip Vehicle Inspection Test, Basic Vehicle Control Skills Test and On-Road Driving. The Passenger endorsement can be used with the Class A, B or C CDL.
You have made error so far
Passing grade —
4 or fewer errors
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1.
When backing a truck, you should:
Only use the side mirrors on the driver’s side.
Use both side mirrors.
Never use a helper.
2.
When entering a curve, you should:
Shift into neutral.
Use the shoulder.
Downshift.
3.
Skids caused by acceleration can usually be resolved by:
Accelerating.
Removing your foot from the accelerator.
Coming to a complete stop.
4.
In icy conditions, a retarder should be:
Turned on.
Turned off.
Only used on the rear wheels.
5.
How does doubling your speed from 20 mph to 40 mph affect your vehicle's braking distance?
It stays about the same.
It doubles.
It quadruples.
6.
The only way to sober up after consuming alcohol is to:
Take a cold shower.
Exercise.
Wait.
7.
When conducting a check of the engine compartment during a vehicle inspection, you should not:
Check the engine oil level.
Check the coolant level.
Drain the brake fluid.
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