Knowledge Test Class B #1
Class B Driving Test | Colorado 2025 #1
Train for FREE online with our Colorado class B license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a CO CDL class B permit in 2025, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class B requirements may vary from state to state.
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1 . Emergency equipment, such as a fire extinguisher, is:
Only required when transporting passengers.
All commercial motor vehicles are required to be equipped with the proper emergency equipment. This may include spare electrical fuses; three red reflective triangles, six fuses, or three liquid burning flares; and at least one properly charged and rated fire extinguisher.
2 . Which of the following is a good rule to follow when making a turn?
Signal early.
Signal well in advance of a turn so drivers behind you are aware of your intentions. Keep the signal on throughout the turn and turn it off once the turn is complete.
3 . When loading a trailer, it is important to:
Only place weight over the axles.
The weight of cargo in a trailer should be evenly balanced. Having too much or too little weight on an axle can interfere with proper control of the vehicle. Additionally, having too much weight on one axle can damage it.
4 . Hydroplaning:
Happens most frequently when tires have good tread.
If there is enough water on the road, hydroplaning can occur at speeds as low as 30 mph. It is most likely if the tires' air pressure is too low or if tires' tread is worn.
5 . What is removed when an air tank is drained?
Chlorine
In an air brake system, the air storage tanks are equipped with drains to allow water and compressor oil to be removed. The water and oil can damage the brakes if left to accumulate in the system.
6 . How many daily hours of sleep does an adult need to maintain alertness?
Being properly rested is essential to the safe operation of a CMV. To maintain alertness, most people need eight to nine hours of sleep per night.
7 . During the vehicle inspection test, you will be asked to:
Change a windshield wiper.
During the CDL vehicle inspection test, you must be able to inspect your vehicle and explain to the examiner what you are inspecting and why.
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2025 Colorado | Frequently Asked Questions
To secure a CDL Bus endorsement in Colorado, you must first have a valid Commercial Driver's License (CDL). Next, pass the Passenger Vehicles Endorsement Knowledge Test and the School Bus Endorsement Knowledge Test. Finally, pass a driving skills test in the type of school bus you wish to drive. All tests are administered by the Colorado DMV.
To obtain a CDL Bus license in Colorado, you need to have a valid driver's license, pass a medical examination, and complete a CDL application. After that, you must pass the General Knowledge Test and the Passenger Transport Test. Finally, you will need to pass a skills test in a vehicle similar to the one you'll be driving.
Yes, specific training is necessary for a CDL Bus endorsement in Colorado. Applicants must complete a commercial driver's license training course that includes both classroom and behind-the-wheel instruction. Additionally, they must pass written and skills tests specific to the type of bus they wish to drive, demonstrating knowledge of safety procedures and handling.
CDL Bus licenses fall under three main classes in Colorado: Class A, B, and C. Class A is for any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 lbs or more. Class B is for a single vehicle with a Gross Vehicle Weight Rating (GVWR) of 26,001 lbs or more. Class C is for vehicles designed to transport 16 or more passengers (including the driver), or hazardous materials.
No, you cannot use your personal vehicle for the CDL Bus driving test in Colorado. The test must be taken in a vehicle that matches the class and type of the CDL you are applying for. In this case, you must take the test in a commercial bus similar to the one you plan to drive professionally.
The CDL Bus driving test evaluates a variety of skills. These include pre-trip vehicle inspection, basic vehicle control (backing, turning, and stopping), and on-road driving, which involves lane changes, highway driving, and interaction with traffic. Additionally, specific bus operation skills such as loading/unloading passengers, railroad crossing procedures, and emergency exit procedures are also assessed.
Yes, in Colorado, to obtain a CDL Bus endorsement, applicants must pass a Department of Transportation (DOT) physical exam. This test evaluates vision, hearing, blood pressure, and checks for conditions like diabetes and epilepsy. Applicants must also be free from any physical or mental condition that might affect their ability to safely operate a commercial vehicle.
No, it's not permissible. In Colorado, as in all U.S. states, a valid Commercial Driver's License (CDL) with a Passenger (P) endorsement is required to legally transport passengers in a commercial vehicle. Driving without the appropriate license or endorsement can lead to serious penalties including fines and suspension of driving privileges.
You can add a CDL Bus endorsement to your existing Commercial Driver's License in Colorado. It's not necessary to apply for a new license. However, you will have to pass the Passenger Transport Test, and in some cases, a skills test in the type of vehicle you wish to drive. Always check with your local DMV for specific requirements.
Yes, there are restrictions for drivers with a CDL Bus endorsement in Colorado. Drivers must not have any serious traffic violations within the past two years. They're also required to maintain a clean driving record, pass regular physical exams, and comply with drug and alcohol regulations. Violating these can result in temporary or permanent loss of the endorsement.
