Passenger

To receive this endorsement, applicants must pass a test consisting of 20 multiple choice questions. Each question has four 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 four 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, 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. Over-the-counter medication:

Explanation
Prescription and over-the-counter medications may have side effects that can impair a person's ability to drive safely. It is illegal to operate a motor vehicle while under the influence of alcohol or any other controlled substance, including some over-the-counter medications.

2. Antifreeze helps to keep an engine functioning properly:

Explanation
It is always important to have enough water and antifreeze in a vehicle's cooling system. Despite the name, antifreeze is beneficial to an engine even in hot weather.

3. If a truck is equipped, a trailer brake hand valve can be used to:

Explanation
If a tractor-trailer is so equipped, the trailer brake hand valve can be used to stop the vehicle from rolling back when being started from a stop.

4. During the on-road driving test, you must do all of the following, except:

Explanation
You must drive in a safe and responsible manner during the on-road driving test. This includes wearing your safety belt; obeying all traffic signs, signals, and laws; and completing the test without an accident or moving violation.

5. When checking the springs during a vehicle inspection, do all of the following, except:

Explanation
When checking the springs as part of the vehicle inspection test, you should look for missing, shifted, cracked, or broken leaf springs, as well as broken or distorted coil springs. If the vehicle is equipped with torsion bars, torque arms, or other types of suspension components, ensure that they are not damaged and are mounted securely.

6. After starting the engine, oil pressure should reach a normal level:

Explanation
After you start the engine, keep an eye on the gauges. Oil pressure should rise to a normal level within a few seconds of the engine being started.

7. How many classes of hazardous materials are there?

Explanation
A hazardous material will be placed into one of nine classes to explain the type of risks associated with the material.
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