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 three possible answer choices. Test questions come from the Commercial Driver Guide. 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
1. When making a left turn, you should start the turn:
Explanation
When making a left turn, you should wait until you reach the center of the intersection before actually beginning to turn. Due to off-tracking, the left side of your vehicle could hit another driver if you begin turning too early.
2. When accelerating on a surface with poor traction, such as a wet road, a driver should:
Explanation
You should accelerate very gradually when driving under conditions that create poor traction.
3. Convex mirrors:
Explanation
Many large vehicles have curved, convex mirrors. Convex mirrors allow drivers to see a wider area than flat mirrors. However, they also make objects seem smaller and farther away than they really are.
4. ____ make up the emergency brake system.
Explanation
In an air brake system, there are three different braking systems: a service brake system, a parking brake system, and an emergency brake system. The emergency brake system uses parts of both the parking and service brake systems.
5. Failing to drain air tanks could result in:
Explanation
In an air brake system, the air tanks must be periodically drained to remove accumulations of water and compressor oil. If water is not removed, it could freeze in cold weather and cause brake failure.
6. What is the maximum legal weight to be placed on a single axle?
Explanation
The allowable gross weight of a bus or truck depends on its tire size, the number of axles, and the spacing of axles (or axle groups). In Washington State, the weight of a commercial vehicle is limited to no more than 20,000 pounds on any single axle.
7. If driving so slowly that you could impede other drivers, you should:
Explanation
If you must drive so slowly that you will impede the flow of traffic, you should turn on your four-way flashers to alert drivers behind you (as long as local laws allow the use of flashers).
Ranked by best match
Frequently Asked Questions
A Class B CDL (Commercial Driver's License) in Washington is a type of license that 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 26,001 pounds or more, but with the towed vehicle weighing less than 10,000 pounds.
Here are the steps to obtain a Class B CDL license in Washington:
1. Meet the eligibility requirements: You must be at least 18 years old to obtain a Class B CDL license in Washington, and you must have a valid Washington State driver's license.
2. Obtain a Commercial Learner's Permit (CLP): You must pass the knowledge and skills tests required for the CLP before you can practice driving a commercial vehicle. You will need to pass a vision test and provide proof of your identity and residency when you apply for your CLP.
3. Practice driving: Once you have your CLP, you can practice driving with someone who has a valid Class B CDL license.
4. Take the skills test: When you feel confident in your driving skills, you can schedule an appointment to take the Class B CDL skills test. This test will include a pre-trip inspection, basic vehicle control, and an on-road driving test.
5. Pass the skills test: If you pass all three parts of the skills test, you will be issued your Class B CDL license.
6. Maintain your license: To keep your Class B CDL license in Washington, you must pass regular medical exams and meet other requirements such as completing continuing education courses.
Here are the steps to obtain a Class B CDL license in Washington:
1. Meet the eligibility requirements: You must be at least 18 years old to obtain a Class B CDL license in Washington, and you must have a valid Washington State driver's license.
2. Obtain a Commercial Learner's Permit (CLP): You must pass the knowledge and skills tests required for the CLP before you can practice driving a commercial vehicle. You will need to pass a vision test and provide proof of your identity and residency when you apply for your CLP.
3. Practice driving: Once you have your CLP, you can practice driving with someone who has a valid Class B CDL license.
4. Take the skills test: When you feel confident in your driving skills, you can schedule an appointment to take the Class B CDL skills test. This test will include a pre-trip inspection, basic vehicle control, and an on-road driving test.
5. Pass the skills test: If you pass all three parts of the skills test, you will be issued your Class B CDL license.
6. Maintain your license: To keep your Class B CDL license in Washington, you must pass regular medical exams and meet other requirements such as completing continuing education courses.
With a Class B CDL license in Washington, you are authorized to operate the following types of vehicles:
1. A single vehicle with a gross vehicle weight rating (GVWR) of 26,001 pounds or more.
2. A combination of vehicles where the towed unit has a GVWR of less than 10,000 pounds. The combined GVWR of the vehicle and the towed unit must be 26,001 pounds or more.
3. A bus designed to transport 16 or more passengers (including the driver) and weighing less than 26,001 pounds.
Examples of vehicles you may be authorized to operate with a Class B CDL license include delivery trucks, straight trucks, large buses, dump trucks, and cement mixers.
It's important to note that there may be additional endorsements required for some types of vehicles or cargo, such as hazardous materials or passenger endorsements for buses.
1. A single vehicle with a gross vehicle weight rating (GVWR) of 26,001 pounds or more.
2. A combination of vehicles where the towed unit has a GVWR of less than 10,000 pounds. The combined GVWR of the vehicle and the towed unit must be 26,001 pounds or more.
3. A bus designed to transport 16 or more passengers (including the driver) and weighing less than 26,001 pounds.
Examples of vehicles you may be authorized to operate with a Class B CDL license include delivery trucks, straight trucks, large buses, dump trucks, and cement mixers.
It's important to note that there may be additional endorsements required for some types of vehicles or cargo, such as hazardous materials or passenger endorsements for buses.
To obtain a Class B CDL license in Washington, you must meet the following requirements:
1. Age: You must be at least 18 years old to obtain a Class B CDL license.
2. Driving Record: You must have a valid Washington State driver's license and a clean driving record.
3. Knowledge Test: You must pass the knowledge test for a Class B CDL license. This test covers general knowledge, air brakes, and combination vehicles.
4. Medical Examination: You must pass a Department of Transportation (DOT) medical examination to ensure that you are physically qualified to operate a commercial vehicle. The exam must be performed by a licensed medical examiner listed on the National Registry of Certified Medical Examiners.
5. Commercial Learner's Permit (CLP): You must obtain a CLP before you can practice driving a commercial vehicle. To obtain a CLP, you must pass the knowledge test and meet other requirements such as passing a vision test and providing proof of your identity and residency.
6. Skills Test: You must pass the skills test for a Class B CDL license, which includes three parts: pre-trip inspection, basic vehicle control, and on-road driving.
7. Endorsements: Depending on the type of vehicle or cargo you plan to transport, you may need to obtain additional endorsements such as hazardous materials or passenger endorsements.
It's important to note that there may be additional requirements or fees involved in obtaining a Class B CDL license in Washington, such as completing training courses or paying for background checks.
1. Age: You must be at least 18 years old to obtain a Class B CDL license.
2. Driving Record: You must have a valid Washington State driver's license and a clean driving record.
3. Knowledge Test: You must pass the knowledge test for a Class B CDL license. This test covers general knowledge, air brakes, and combination vehicles.
4. Medical Examination: You must pass a Department of Transportation (DOT) medical examination to ensure that you are physically qualified to operate a commercial vehicle. The exam must be performed by a licensed medical examiner listed on the National Registry of Certified Medical Examiners.
5. Commercial Learner's Permit (CLP): You must obtain a CLP before you can practice driving a commercial vehicle. To obtain a CLP, you must pass the knowledge test and meet other requirements such as passing a vision test and providing proof of your identity and residency.
6. Skills Test: You must pass the skills test for a Class B CDL license, which includes three parts: pre-trip inspection, basic vehicle control, and on-road driving.
7. Endorsements: Depending on the type of vehicle or cargo you plan to transport, you may need to obtain additional endorsements such as hazardous materials or passenger endorsements.
It's important to note that there may be additional requirements or fees involved in obtaining a Class B CDL license in Washington, such as completing training courses or paying for background checks.
The minimum age requirement for a Class B CDL license in Washington is 18 years old. However, if you plan to transport hazardous materials or operate a bus designed to transport 16 or more passengers (including the driver), you must be at least 21 years old. Additionally, if you plan to transport goods or materials across state lines, you must be at least 21 years old due to federal regulations.
It depends on the type of vehicle or cargo you plan to transport. Here are some common endorsements for a Class B CDL license in Washington:
1. Passenger Endorsement: If you plan to drive a bus designed to transport 16 or more passengers (including the driver), you must obtain a passenger endorsement.
2. School Bus Endorsement: If you plan to drive a school bus, you must obtain a school bus endorsement.
3. Hazardous Materials Endorsement: If you plan to transport hazardous materials, you must obtain a hazardous materials endorsement.
4. Tank Vehicle Endorsement: If you plan to transport liquids or gases in bulk in a tank vehicle, you must obtain a tank vehicle endorsement.
5. Doubles/Triples Endorsement: If you plan to tow double or triple trailers, you must obtain a doubles/triples endorsement.
It's important to note that some endorsements may also require additional knowledge and skills tests. Additionally, there may be additional fees involved in obtaining endorsements for your CDL license.
1. Passenger Endorsement: If you plan to drive a bus designed to transport 16 or more passengers (including the driver), you must obtain a passenger endorsement.
2. School Bus Endorsement: If you plan to drive a school bus, you must obtain a school bus endorsement.
3. Hazardous Materials Endorsement: If you plan to transport hazardous materials, you must obtain a hazardous materials endorsement.
4. Tank Vehicle Endorsement: If you plan to transport liquids or gases in bulk in a tank vehicle, you must obtain a tank vehicle endorsement.
5. Doubles/Triples Endorsement: If you plan to tow double or triple trailers, you must obtain a doubles/triples endorsement.
It's important to note that some endorsements may also require additional knowledge and skills tests. Additionally, there may be additional fees involved in obtaining endorsements for your CDL license.
The Class B CDL skills test in Washington consists of three parts:
1. Pre-Trip Inspection: You will be asked to perform a pre-trip inspection of your vehicle to demonstrate your knowledge of the vehicle's components and safety features.
2. Basic Vehicle Control: You will be asked to demonstrate your ability to control the vehicle in various situations, such as backing up, turning, and maneuvering through tight spaces.
3. On-Road Driving: You will be asked to demonstrate your ability to safely operate the vehicle on public roads, including obeying traffic signs and signals, changing lanes, turning at intersections, and merging with traffic.
During the skills test, you will be evaluated on your ability to operate the vehicle safely and effectively. It's important to practice all three parts of the skills test thoroughly before taking the test. You may also want to consider taking a practice test or enrolling in a CDL training program to prepare for the skills test.
1. Pre-Trip Inspection: You will be asked to perform a pre-trip inspection of your vehicle to demonstrate your knowledge of the vehicle's components and safety features.
2. Basic Vehicle Control: You will be asked to demonstrate your ability to control the vehicle in various situations, such as backing up, turning, and maneuvering through tight spaces.
3. On-Road Driving: You will be asked to demonstrate your ability to safely operate the vehicle on public roads, including obeying traffic signs and signals, changing lanes, turning at intersections, and merging with traffic.
During the skills test, you will be evaluated on your ability to operate the vehicle safely and effectively. It's important to practice all three parts of the skills test thoroughly before taking the test. You may also want to consider taking a practice test or enrolling in a CDL training program to prepare for the skills test.
Yes, there are some restrictions or limitations for drivers with a Class B CDL license in Washington. Here are some common restrictions:
1. Passenger Restrictions: If you have a Class B CDL license with a passenger endorsement, you may only operate a vehicle designed to transport 16 or more passengers (including the driver).
2. Air Brake Restrictions: If you do not pass the air brake knowledge or skills test, you may be restricted from operating vehicles with air brakes.
3. Hazardous Materials Restrictions: If you do not pass the hazardous materials knowledge or skills test, you may be restricted from transporting hazardous materials.
4. Tank Vehicle Restrictions: If you do not pass the tank vehicle knowledge or skills test, you may be restricted from transporting liquids or gases in bulk in a tank vehicle.
5. Automatic Transmission Restrictions: If you take the skills test in a vehicle with automatic transmission, you will be restricted from driving vehicles with manual transmission.
It's important to note that some restrictions may require additional testing or training to remove the restriction. Additionally, violating any of these restrictions may result in fines, license suspension, or revocation.
1. Passenger Restrictions: If you have a Class B CDL license with a passenger endorsement, you may only operate a vehicle designed to transport 16 or more passengers (including the driver).
2. Air Brake Restrictions: If you do not pass the air brake knowledge or skills test, you may be restricted from operating vehicles with air brakes.
3. Hazardous Materials Restrictions: If you do not pass the hazardous materials knowledge or skills test, you may be restricted from transporting hazardous materials.
4. Tank Vehicle Restrictions: If you do not pass the tank vehicle knowledge or skills test, you may be restricted from transporting liquids or gases in bulk in a tank vehicle.
5. Automatic Transmission Restrictions: If you take the skills test in a vehicle with automatic transmission, you will be restricted from driving vehicles with manual transmission.
It's important to note that some restrictions may require additional testing or training to remove the restriction. Additionally, violating any of these restrictions may result in fines, license suspension, or revocation.
Yes, in Washington State, you can take the Class B CDL written test in a language other than English. The Department of Licensing (DOL) offers the written test in several languages, including Spanish, Korean, Japanese, Russian, Vietnamese, and more.
To take the written test in a language other than English, you must make an appointment at a DOL licensing office that offers the test in your preferred language. You will need to bring your identification documents and pay the testing fee.
It's important to note that even if you take the written test in a language other than English, you will still need to be able to read and understand English for the skills test and for driving on public roads. Additionally, some of the study materials for the CDL exam may only be available in English.
To take the written test in a language other than English, you must make an appointment at a DOL licensing office that offers the test in your preferred language. You will need to bring your identification documents and pay the testing fee.
It's important to note that even if you take the written test in a language other than English, you will still need to be able to read and understand English for the skills test and for driving on public roads. Additionally, some of the study materials for the CDL exam may only be available in English.
Yes, if you have a disability that affects your ability to take the Class B CDL written test, you may request accommodations from the Washington State Department of Licensing (DOL).
To request accommodations, you will need to complete a Request for Reasonable Accommodation form, which is available on the DOL website or at any DOL licensing office. You will need to provide documentation of your disability and how it affects your ability to take the test. Examples of accommodations that may be provided include extended time to complete the test, a reader or scribe, or a sign language interpreter.
Once your request is received and reviewed by the DOL, they will notify you of their decision and any accommodations that will be provided. It's important to note that reasonable accommodations are intended to level the playing field for individuals with disabilities, but they are not intended to provide an unfair advantage.
To request accommodations, you will need to complete a Request for Reasonable Accommodation form, which is available on the DOL website or at any DOL licensing office. You will need to provide documentation of your disability and how it affects your ability to take the test. Examples of accommodations that may be provided include extended time to complete the test, a reader or scribe, or a sign language interpreter.
Once your request is received and reviewed by the DOL, they will notify you of their decision and any accommodations that will be provided. It's important to note that reasonable accommodations are intended to level the playing field for individuals with disabilities, but they are not intended to provide an unfair advantage.
Yes, if you fail the Class B CDL written test in Washington State, you can retake the test. However, you will need to wait at least one day before retaking the test.
If you fail the test three times, you will need to wait at least two weeks before taking it again. You will also need to pay the testing fee each time you take the test.
It's important to note that if you fail the written test, you will not be eligible to take the skills (driving) test until you pass the written test. Therefore, it's essential to study and prepare thoroughly for the written test to increase your chances of passing it on your first attempt. You can find study materials on the DOL website or at any DOL licensing office.
If you fail the test three times, you will need to wait at least two weeks before taking it again. You will also need to pay the testing fee each time you take the test.
It's important to note that if you fail the written test, you will not be eligible to take the skills (driving) test until you pass the written test. Therefore, it's essential to study and prepare thoroughly for the written test to increase your chances of passing it on your first attempt. You can find study materials on the DOL website or at any DOL licensing office.
