Knowledge Test Class B

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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..

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.

Passing grade:

When using mirrors while driving, you should:

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

Eating while driving:

Explanation
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.

If the spring brakes are activated, you should never:

Explanation
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.

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

Explanation
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.

When driving in fog, you should:

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

The steering wheel should be:

Explanation
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.

When driving in heavy traffic, you should:

Explanation
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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