Passenger

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.. Read More

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.

Number of Question
Passing Score

1. Which of the following is acceptable if found during a pre-trip inspection?

Explanation
When inspecting your tires, verify that there is at least 4/32 of an inch of tread depth in every major groove on the front tires, and tread depth of at least 2/32 of an inch on the other tires. Tires on the same vehicle should all be the same size.

2. Skids caused by over-acceleration can usually be resolved by:

Explanation
A skid caused by over-acceleration can be resolved simply by removing your foot from the accelerator. Skids of this nature happen most frequently on surfaces covered in snow or ice.

3. An encroachment is when:

Explanation
An encroachment during the basic vehicle control skills test is when an exercise boundary line is touched or crossed by any portion of the applicant's vehicle. Every encroachment will be counted as an error.

4. When driving under wet conditions, a lack of spray coming from the tires of other vehicles indicates that:

Explanation
In wet conditions, a lack of spray coming from the tires of other vehicles indicates that ice has formed on the road. Be especially cautious when traveling under wet conditions in freezing weather.

5. Backing with a trailer is dangerous because:

Explanation
Backing up is always dangerous because it is impossible to see everything that is behind you. Only drive in reverse if it is absolutely necessary.

6. A Class 1 hazardous material is:

Explanation
The first hazardous materials class includes explosives such as ammunition, dynamite, and fireworks.

7. A broken exhaust system:

Explanation
A broken exhaust system can let poisonous fumes into a vehicle's cab or sleeper berth. Be sure to inspect your exhaust system for any loose, broken, or missing parts.
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