Instructions

Knowledge Test Class B

This license is required for driving a single vehicle with a GVWR of more than 26,001 pounds, and a trailer not to exceed 10,000 pounds gross vehicle weight rating, or a vehicle designed to transport 24 or more people (including the driver). To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Each question has four possible answer choices. Test questions come from the Colorado Commercial Driver License Manual. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Pre-Trip Vehicle Inspection Test, Basic Vehicle Control Skills Test and On-Road Driving.. Endorsements that may be used with a Class B CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.

Number of Question 50

Passing Score 40

Before you start the test, please answer the question below regarding your insurance status.

Without insurance you will not be able to drive in Colorado

1. When using mirrors while driving, you should:

Look in the mirrors quickly.

Look in the mirrors for extended periods of time.

Use only the rearview mirror.

Use only the driver’s side mirror.

Focusing on your mirrors for too long can be dangerous because you will have traveled a substantial distance without looking at the road ahead.

2. Eating while driving:

Is a good way to maximize time.

Is encouraged on long trips.

Creates a distraction for the driver.

Is mandatory so cargo is not left unsupervised.

To reduce the chances of driving distracted, you should avoid eating, drinking, or smoking while driving. Anything that diverts attention from the task of driving is a distraction.

3. If the spring brakes are activated, you should never:

Push down the brake pedal.

Open the hood.

Release air from the air storage tanks.

Open the door to the cab.

Never apply the brake pedal if your spring breaks are activated. Brakes can be damaged if they are subject to both springs and air pressure.

4. Fuel records supporting IFTA quarterly fuel use tax returns must be kept by carriers for:

One year.

Two years.

Three years.

Four years.

In general, if you operate a commercial vehicle in interstate commerce, it must be registered under the International Registration Plan (IRP) and International Fuel Tax Agreement (IFTA). These programs collect and distribute vehicle registration fees and fuel taxes based on what jurisdictions you drive in and for how long. Mileage and fuel records supporting IFTA quarterly fuel tax returns must be retained by carriers for four years.

5. When driving in fog, you should:

Use the windshield wipers.

Use low beam headlights.

Use high beam headlights.

Use the air conditioning.

If you must drive in fog, you should use your low beam headlights and fog lights, even during the daytime.

6. The steering wheel should be:

Held with both hands.

Held by one hand to allow for other tasks, such as eating and drinking.

Held by one hand at a time, alternating between hands.

Cracked to allow for an improved grip.

To maintain proper control of your vehicle, the steering wheel should be held firmly with both hands. Your hands should be positioned on opposite sides of the wheel.

7. When driving in heavy traffic, you should:

Use hands-free cellular devices.

Use your cell phone for texting instead of calling.

Not use your cell phone.

Turn up the ringer on your cell phone.

Areas with heavy traffic, road construction, large numbers of pedestrians, or severe weather demand extra attention from a driver. The driver should avoid all possible distractions while in such areas, including cell phone use.

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