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
Passing Score
43. A low air pressure warning signal should activate:
Explanation
In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 60 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.
44. If driving a vehicle with a manual transmission, you can prevent your vehicle from rolling backward when starting from a stop by:
Explanation
To prevent rolling backward when starting from a stop, you should partly engage the clutch before removing your foot from the brake. Apply the parking brake whenever necessary to prevent your vehicle from rolling back.
45. A driver can have:
Explanation
A person cannot have more than one license. States share driver data through a computer database to prevent the issuance of duplicate licenses.
46. To prevent fatigue while driving, you should:
Explanation
A hot, poorly-ventilated area can make a person sleepy. Opening a window, opening a vent, or using the air conditioning can help keep the cab cool and reduce the risk of fatigue.
47. You must put out emergency warning devices within ____ of stopping on the side of the road.
Explanation
If you must stop on the shoulder of a road, put out your emergency warning devices within 10 minutes of stopping. When pulling off the road to stop, be sure to turn on your four-way emergency flashers.
48. Distracted drivers may be:
Explanation
You may be able to tell that another driver is distracted if you can see them drifting within a lane or across lane dividers; traveling at inconsistent speeds; being preoccupied with a cell phone, a map, food, or other items; or engaging in conversation with passengers.
49. 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.
50. If asked to sight-side back your vehicle into an alley, you should first:
Explanation
If you are asked to alley dock, you should first pull past the alley and stop your vehicle in a position that is parallel to the outer boundary. From there, you should back your vehicle entirely into the alley parking area. Your vehicle should be parked in a straight position within the boundaries of the parking space.
Frequently Asked Questions
A Class B CDL (Commercial Driver's License) in Colorado allows a driver to operate a single vehicle with a weight of 26,001 pounds or more, or a combination of vehicles with a total weight of less than 26,001 pounds. This license is required for driving commercial vehicles such as buses, delivery trucks, and tow trucks.
To obtain a Class B CDL license in Colorado, you must:
1. Be at least 18 years old (21 years old for interstate driving)
2. Hold a valid Colorado driver's license
3. Pass a vision test
4. Pass the written knowledge test for a Class B CDL
5. Obtain a commercial learner's permit (CLP) by passing additional knowledge and skills tests
6. Complete behind-the-wheel training with a licensed CDL instructor
7. Pass the driving skills test in the type of vehicle you will be driving
8. Pay the required fees and provide all necessary documentation
It is important to note that certain medical requirements must also be met to obtain and maintain a Class B CDL license in Colorado.
To obtain a Class B CDL license in Colorado, you must:
1. Be at least 18 years old (21 years old for interstate driving)
2. Hold a valid Colorado driver's license
3. Pass a vision test
4. Pass the written knowledge test for a Class B CDL
5. Obtain a commercial learner's permit (CLP) by passing additional knowledge and skills tests
6. Complete behind-the-wheel training with a licensed CDL instructor
7. Pass the driving skills test in the type of vehicle you will be driving
8. Pay the required fees and provide all necessary documentation
It is important to note that certain medical requirements must also be met to obtain and maintain a Class B CDL license in Colorado.
With a Class B CDL license in Colorado, you are authorized to operate a single vehicle with a weight of 26,001 pounds or more, or a combination of vehicles with a total weight of less than 26,001 pounds. This includes:
1. Straight trucks: This includes large delivery trucks and dump trucks.
2. Buses: You can operate buses that carry more than 15 passengers, including school buses.
3. Combination vehicles: You can drive a combination of vehicles that weigh less than 26,001 pounds, such as a truck and trailer.
It is important to note that if you want to operate vehicles that weigh more than 26,001 pounds, you will need to obtain a Class A CDL license. Also, depending on the type of vehicle you will be driving, you may need additional endorsements on your CDL, such as passenger or hazardous materials endorsements.
1. Straight trucks: This includes large delivery trucks and dump trucks.
2. Buses: You can operate buses that carry more than 15 passengers, including school buses.
3. Combination vehicles: You can drive a combination of vehicles that weigh less than 26,001 pounds, such as a truck and trailer.
It is important to note that if you want to operate vehicles that weigh more than 26,001 pounds, you will need to obtain a Class A CDL license. Also, depending on the type of vehicle you will be driving, you may need additional endorsements on your CDL, such as passenger or hazardous materials endorsements.
To obtain a Class B CDL (Commercial Driver's License) license in Colorado, you must meet several requirements, including:
1. Age: You must be at least 18 years old to drive within Colorado and 21 years old to drive outside the state.
2. Valid Colorado driver's license: You must have a valid Colorado driver's license.
3. Medical certification: You must meet the medical certification requirements set by the Federal Motor Carrier Safety Administration (FMCSA).
4. Knowledge test: You must pass the written knowledge test for a Class B CDL. The test covers general trucking and specific knowledge based on the type of vehicle you will be driving.
5. Commercial learner's permit (CLP): You must obtain a CLP by passing additional knowledge and skills tests for the type of vehicle you will be driving.
6. Behind-the-wheel training: You must complete behind-the-wheel training with a licensed CDL instructor.
7. Driving skills test: You must pass the driving skills test in the type of vehicle you will be driving.
8. Fees and documentation: You must pay the required fees and provide all necessary documentation, such as proof of identity and residency.
It is important to note that certain medical requirements must also be met to obtain and maintain a Class B CDL license in Colorado. Additionally, depending on the type of vehicle you will be driving, you may need additional endorsements on your CDL, such as passenger or hazardous materials endorsements.
1. Age: You must be at least 18 years old to drive within Colorado and 21 years old to drive outside the state.
2. Valid Colorado driver's license: You must have a valid Colorado driver's license.
3. Medical certification: You must meet the medical certification requirements set by the Federal Motor Carrier Safety Administration (FMCSA).
4. Knowledge test: You must pass the written knowledge test for a Class B CDL. The test covers general trucking and specific knowledge based on the type of vehicle you will be driving.
5. Commercial learner's permit (CLP): You must obtain a CLP by passing additional knowledge and skills tests for the type of vehicle you will be driving.
6. Behind-the-wheel training: You must complete behind-the-wheel training with a licensed CDL instructor.
7. Driving skills test: You must pass the driving skills test in the type of vehicle you will be driving.
8. Fees and documentation: You must pay the required fees and provide all necessary documentation, such as proof of identity and residency.
It is important to note that certain medical requirements must also be met to obtain and maintain a Class B CDL license in Colorado. Additionally, depending on the type of vehicle you will be driving, you may need additional endorsements on your CDL, such as passenger or hazardous materials endorsements.
In Colorado, the minimum age requirement for a Class B CDL (Commercial Driver's License) license is 18 years old. However, drivers who are 18 to 20 years old can only drive commercial vehicles within the state of Colorado and cannot transport hazardous materials or operate passenger vehicles with more than 16 passengers.
If you want to drive a commercial vehicle outside of Colorado or transport hazardous materials, you must be at least 21 years old. Additionally, some employers may have their own age requirements for certain types of commercial driving jobs.
If you want to drive a commercial vehicle outside of Colorado or transport hazardous materials, you must be at least 21 years old. Additionally, some employers may have their own age requirements for certain types of commercial driving jobs.
In Colorado, you may need to obtain additional endorsements on your Class B CDL (Commercial Driver's License) license depending on the type of vehicle you plan to operate.
Here are some of the endorsements that you may need to obtain:
1. Passenger endorsement: If you plan to drive a Class B commercial vehicle designed to transport 16 or more passengers, including the driver, you will need a passenger endorsement.
2. School bus endorsement: If you plan to drive a school bus with passengers, you will need a school bus endorsement.
3. Hazardous materials endorsement: If you plan to transport hazardous materials in quantities that require placarding, you will need a hazardous materials endorsement.
4. Tanker endorsement: If you plan to transport liquid or gas in bulk containers with a capacity of 1,000 gallons or more, you will need a tanker endorsement.
To obtain these endorsements, you must pass additional knowledge and skills tests specific to each endorsement. It's important to note that there may be additional requirements for each endorsement, such as background checks and fingerprinting.
Here are some of the endorsements that you may need to obtain:
1. Passenger endorsement: If you plan to drive a Class B commercial vehicle designed to transport 16 or more passengers, including the driver, you will need a passenger endorsement.
2. School bus endorsement: If you plan to drive a school bus with passengers, you will need a school bus endorsement.
3. Hazardous materials endorsement: If you plan to transport hazardous materials in quantities that require placarding, you will need a hazardous materials endorsement.
4. Tanker endorsement: If you plan to transport liquid or gas in bulk containers with a capacity of 1,000 gallons or more, you will need a tanker endorsement.
To obtain these endorsements, you must pass additional knowledge and skills tests specific to each endorsement. It's important to note that there may be additional requirements for each endorsement, such as background checks and fingerprinting.
The Class B CDL (Commercial Driver's License) skills test in Colorado consists of three parts: pre-trip inspection, basic vehicle control, and on-road driving. Here is a breakdown of what each part will involve:
1. Pre-trip inspection: You will be asked to do a thorough inspection of your vehicle to ensure that it is in good working condition. This includes checking the brakes, tires, lights, steering, suspension, and other important components. You will need to explain to the examiner what you are checking and why.
2. Basic vehicle control: You will be asked to perform several maneuvers to demonstrate your ability to control the vehicle in tight spaces. This may include backing up in a straight line, parallel parking, alley docking, or other maneuvers.
3. On-road driving: You will be required to drive on public roads while the examiner evaluates your ability to safely operate the vehicle in traffic. The examiner will be looking at your ability to use mirrors, signal properly, change lanes safely, maintain proper speed and distance from other vehicles, and follow traffic laws.
To pass the Class B CDL skills test, you must pass all three parts with a score of 80% or higher. Additionally, you must have a valid driver's license and have completed all necessary training requirements before taking the test.
1. Pre-trip inspection: You will be asked to do a thorough inspection of your vehicle to ensure that it is in good working condition. This includes checking the brakes, tires, lights, steering, suspension, and other important components. You will need to explain to the examiner what you are checking and why.
2. Basic vehicle control: You will be asked to perform several maneuvers to demonstrate your ability to control the vehicle in tight spaces. This may include backing up in a straight line, parallel parking, alley docking, or other maneuvers.
3. On-road driving: You will be required to drive on public roads while the examiner evaluates your ability to safely operate the vehicle in traffic. The examiner will be looking at your ability to use mirrors, signal properly, change lanes safely, maintain proper speed and distance from other vehicles, and follow traffic laws.
To pass the Class B CDL skills test, you must pass all three parts with a score of 80% or higher. Additionally, you must have a valid driver's license and have completed all necessary training requirements before taking the test.
Yes, there are restrictions and limitations for drivers with a Class B CDL (Commercial Driver's License) license in Colorado. Here are some of the most common restrictions:
1. Vehicle weight: If you obtain a Class B CDL with a weight restriction, you will not be able to operate vehicles with a gross vehicle weight rating (GVWR) of over 26,000 pounds.
2. Passenger transport: If you obtain a Class B CDL with a passenger endorsement, you can only operate vehicles designed to transport 16 or more passengers, including the driver.
3. Hazardous materials: If you obtain a Class B CDL with a hazardous materials endorsement, you can only transport certain types and quantities of hazardous materials in accordance with federal regulations.
4. Air brakes: If you do not pass the air brakes knowledge test or the air brakes skills test, your Class B CDL will be issued with an air brake restriction. This means that you cannot operate commercial motor vehicles with air brakes.
It's important to note that there may be additional restrictions or limitations depending on your specific situation or endorsements. Make sure to check with the Colorado Division of Motor Vehicles (DMV) for more information on Class B CDL restrictions and limitations.
1. Vehicle weight: If you obtain a Class B CDL with a weight restriction, you will not be able to operate vehicles with a gross vehicle weight rating (GVWR) of over 26,000 pounds.
2. Passenger transport: If you obtain a Class B CDL with a passenger endorsement, you can only operate vehicles designed to transport 16 or more passengers, including the driver.
3. Hazardous materials: If you obtain a Class B CDL with a hazardous materials endorsement, you can only transport certain types and quantities of hazardous materials in accordance with federal regulations.
4. Air brakes: If you do not pass the air brakes knowledge test or the air brakes skills test, your Class B CDL will be issued with an air brake restriction. This means that you cannot operate commercial motor vehicles with air brakes.
It's important to note that there may be additional restrictions or limitations depending on your specific situation or endorsements. Make sure to check with the Colorado Division of Motor Vehicles (DMV) for more information on Class B CDL restrictions and limitations.
Yes, in Colorado, you can take the Class B CDL (Commercial Driver's License) written test in a language other than English. The Colorado Division of Motor Vehicles (DMV) provides the written test in several languages, including Spanish, French, German, Chinese, Japanese, Korean and Vietnamese. However, it's important to note that the skills test (pre-trip inspection, basic vehicle control and on-road driving) is only available in English.
If you choose to take the written test in a language other than English, you will need to bring an interpreter with you to the DMV. The interpreter must be at least 18 years old and cannot be a family member or business associate. The interpreter will be required to sign an affidavit stating that they will accurately translate the questions and your answers on the test.
It's also important to note that if you pass the written test in a language other than English, you will receive a restriction on your CDL that states that you cannot operate a commercial vehicle without an interpreter. If you later want to remove this restriction, you will need to pass the written test again in English.
If you choose to take the written test in a language other than English, you will need to bring an interpreter with you to the DMV. The interpreter must be at least 18 years old and cannot be a family member or business associate. The interpreter will be required to sign an affidavit stating that they will accurately translate the questions and your answers on the test.
It's also important to note that if you pass the written test in a language other than English, you will receive a restriction on your CDL that states that you cannot operate a commercial vehicle without an interpreter. If you later want to remove this restriction, you will need to pass the written test again in English.
Yes, in Colorado, you can request accommodations for the Class B CDL (Commercial Driver's License) written test if you have a disability that makes it difficult for you to take the test under standard conditions. The Colorado Division of Motor Vehicles (DMV) is committed to providing equal access to all applicants, including those with disabilities.
To request accommodations, you will need to fill out the Request for Accommodations form and submit it to the DMV. The form asks for information about your disability and the specific accommodations you are requesting. You will also need to provide documentation from a qualified professional that supports your request for accommodations.
The DMV will review your request and determine if the accommodations are appropriate and necessary. Some examples of accommodations that may be provided include extended testing time, a separate testing room, use of a reader or scribe, or an oral test.
It's important to note that you must submit your request for accommodations at least two weeks before your scheduled written test date. This gives the DMV time to review your request and make any necessary arrangements.
To request accommodations, you will need to fill out the Request for Accommodations form and submit it to the DMV. The form asks for information about your disability and the specific accommodations you are requesting. You will also need to provide documentation from a qualified professional that supports your request for accommodations.
The DMV will review your request and determine if the accommodations are appropriate and necessary. Some examples of accommodations that may be provided include extended testing time, a separate testing room, use of a reader or scribe, or an oral test.
It's important to note that you must submit your request for accommodations at least two weeks before your scheduled written test date. This gives the DMV time to review your request and make any necessary arrangements.
Yes, if you fail the Class B CDL (Commercial Driver's License) written test in Colorado, you are allowed to retake the test. However, there are some restrictions on how soon you can retake the test and how many times you can retake it.
If you fail the written test, you will receive a score report that shows which questions you answered incorrectly. This will give you an idea of which areas you need to study before retaking the test.
In Colorado, you are allowed to retake the written test on the same day if there is an available appointment time. However, if you fail the test three times, you will need to wait at least 7 days before retaking it again. If you fail the test five times, you will need to wait at least 14 days before retaking it again.
It's important to note that there is a fee for each attempt at the written test, so it's in your best interest to prepare thoroughly before taking the test. You may want to consider studying from a CDL handbook or taking a practice test before your next attempt.
If you fail the written test, you will receive a score report that shows which questions you answered incorrectly. This will give you an idea of which areas you need to study before retaking the test.
In Colorado, you are allowed to retake the written test on the same day if there is an available appointment time. However, if you fail the test three times, you will need to wait at least 7 days before retaking it again. If you fail the test five times, you will need to wait at least 14 days before retaking it again.
It's important to note that there is a fee for each attempt at the written test, so it's in your best interest to prepare thoroughly before taking the test. You may want to consider studying from a CDL handbook or taking a practice test before your next attempt.
