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Iowa CDL Permit Test - Passenger

(From the 2021 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

Within 10 minutes of stopping on the side of the road, you must:

Place emergency warning devices.
Alert local law enforcement.
Call a mechanic.

While driving, if you notice anything that affects safety or could lead to mechanical problems, you should:

Wait to see if the problem goes away.
Include the concerns in your written report.
Try to fix the issue yourself.

Roads are the most slippery right after it begins to rain because:

The water mixes with the oil and grease on the road that have not yet washed away.
Roads are naturally slippery.
The gravel gets washed into the middle of the lane.

What should be done to prevent an engine fire from spreading?

Leave the engine turned on
Turn the engine turned off
Open the hood

If unable to tell if the road is becoming icy and slippery, a driver:

Should try guessing.
May open their window and feel the front of the side mirror for ice.
Should look at the road closely.

When transporting cargo, drivers must check the securement of the cargo every:

10 miles.
150 miles.
500 miles.

Texting while driving should:

Only be done on straightaways.
Only be done in curves.
Not be done.
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