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 Idaho Commercial Driver’s 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
22. If making a tight turn, the operator of a CMV should:
Explanation
Drivers behind you may not anticipate how slowly your CMV must travel to safely make a right turn. You can help warn them in advance by braking early and slowing gradually.
23. A ____ allows a driver to gradually apply spring brakes.
Explanation
A modulating control valve allows a driver to gradually apply spring brakes. In equipped vehicles, the valve is controlled by a lever located on the dashboard.
24. To determine if a vehicle can handle a load, you must know:
Explanation
It is a driver's responsibility to make sure their vehicle is not overloaded. They must be aware of legal weight limits and the maximum weight that their vehicle is rated to carry, including the weight capacity rating of the suspension system.
25. What is the Gross Vehicle Weight Rating (GVWR)?
Explanation
A Gross Vehicle Weight Rating (GVWR) is the value specified by the manufacturer as the loaded weight of a single vehicle.
26. When driving a 50-foot truck at 50 mph, your minimum following distance should be:
Explanation
At speeds below 40 mph, you should allow at least one second of following distance for every 10 feet of your vehicle. When traveling at higher speeds, follow the same formula, then add one additional second to your following distance.
27. Before a trip, you should make sure that:
Explanation
When checking your vehicle's pedals during a pre-trip inspection, you should ensure that there is nothing under or around the pedals that will obstruct their use. Make sure the pedals are in proper working condition and that the surfaces of the pedals are grooved, if applicable.
28. Alcohol is removed from the body:
Explanation
The liver removes alcohol from the body at a fixed rate. Despite popular belief, tricks like drinking coffee or taking a cold shower will not speed up the process. The only way to become sober is to allow your body the time it needs to remove the alcohol from your system.
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Frequently Asked Questions
A Class B CDL (Commercial Driver's License) in Idaho authorizes the holder to operate a single vehicle with a weight of 26,001 or more pounds, or a combination of vehicles with a total weight of 26,001 or more pounds, towing a vehicle with a weight of up to 10,000 pounds.
Here are the steps to obtain a Class B CDL license in Idaho:
1. Obtain and study the Idaho Commercial Driver's License Manual.
2. Obtain a medical certificate from a licensed medical examiner.
3. Apply for and obtain a Commercial Learner's Permit (CLP) from the Idaho Department of Transportation (IDOT).
4. Practice driving with your CLP and gain experience operating your Class B vehicle.
5. Schedule and pass the CDL skills test at an IDOT-approved testing location.
6. Pay the applicable fees and obtain your Class B CDL license from IDOT.
It is important to note that additional endorsements may be required for certain types of vehicles or cargo, such as hazardous materials or passenger transportation.
Here are the steps to obtain a Class B CDL license in Idaho:
1. Obtain and study the Idaho Commercial Driver's License Manual.
2. Obtain a medical certificate from a licensed medical examiner.
3. Apply for and obtain a Commercial Learner's Permit (CLP) from the Idaho Department of Transportation (IDOT).
4. Practice driving with your CLP and gain experience operating your Class B vehicle.
5. Schedule and pass the CDL skills test at an IDOT-approved testing location.
6. Pay the applicable fees and obtain your Class B CDL license from IDOT.
It is important to note that additional endorsements may be required for certain types of vehicles or cargo, such as hazardous materials or passenger transportation.
With a Class B CDL license in Idaho, you can operate any single vehicle with a gross vehicle weight rating (GVWR) of 26,001 or more pounds, or a combination of vehicles with a total weight of 26,001 or more pounds, towing a vehicle with a weight of up to 10,000 pounds.
Some examples of vehicles you can operate with a Class B CDL license in Idaho include:
- Straight trucks (e.g., delivery trucks, dump trucks)
- Large buses (e.g., school buses, city buses)
- Box trucks with trailers
- Tractor-trailers (i.e., semi-trucks) without the trailer exceeding 10,000 pounds
- Cement mixers
- Tow trucks
It is important to note that additional endorsements may be required for certain types of vehicles or cargo, such as hazardous materials or passenger transportation.
Some examples of vehicles you can operate with a Class B CDL license in Idaho include:
- Straight trucks (e.g., delivery trucks, dump trucks)
- Large buses (e.g., school buses, city buses)
- Box trucks with trailers
- Tractor-trailers (i.e., semi-trucks) without the trailer exceeding 10,000 pounds
- Cement mixers
- Tow trucks
It is important to note that additional endorsements may be required for certain types of vehicles or cargo, such as hazardous materials or passenger transportation.
To obtain a Class B CDL (Commercial Driver's License) license in Idaho, you must meet the following requirements:
1. Age: You must be at least 18 years old to operate a commercial vehicle within the state of Idaho, and at least 21 years old to operate a commercial vehicle across state lines or transport hazardous materials.
2. Driver's License: You must possess a valid Idaho driver's license.
3. Medical Certification: You must obtain a medical examination certificate from an approved medical examiner that certifies you meet the physical standards required for operating a commercial vehicle.
4. Commercial Learner's Permit (CLP): You must obtain a CLP by passing a knowledge test and meeting other requirements, such as providing proof of identity and residency in Idaho.
5. Skills Test: You must pass a skills test that includes a pre-trip inspection, basic vehicle control, and an on-road driving test.
6. Background Check: You will need to pass a background check that includes your driving record, criminal history, and other relevant information.
7. Fees: There are fees associated with obtaining and maintaining your Class B CDL license in Idaho.
It is important to note that additional endorsements may be required for certain types of vehicles or cargo, such as hazardous materials or passenger transportation.
1. Age: You must be at least 18 years old to operate a commercial vehicle within the state of Idaho, and at least 21 years old to operate a commercial vehicle across state lines or transport hazardous materials.
2. Driver's License: You must possess a valid Idaho driver's license.
3. Medical Certification: You must obtain a medical examination certificate from an approved medical examiner that certifies you meet the physical standards required for operating a commercial vehicle.
4. Commercial Learner's Permit (CLP): You must obtain a CLP by passing a knowledge test and meeting other requirements, such as providing proof of identity and residency in Idaho.
5. Skills Test: You must pass a skills test that includes a pre-trip inspection, basic vehicle control, and an on-road driving test.
6. Background Check: You will need to pass a background check that includes your driving record, criminal history, and other relevant information.
7. Fees: There are fees associated with obtaining and maintaining your Class B CDL license in Idaho.
It is important to note that additional endorsements may be required for certain types of vehicles or cargo, such as hazardous materials or passenger transportation.
The minimum age requirement for a Class B CDL (Commercial Driver's License) license in Idaho is 18 years old. However, if you plan to drive a commercial vehicle across state lines or transport hazardous materials, you must be at least 21 years old.
It is important to note that some employers may have their own age requirements for certain types of commercial driving jobs, so it is important to check with them before pursuing a Class B CDL license.
It is important to note that some employers may have their own age requirements for certain types of commercial driving jobs, so it is important to check with them before pursuing a Class B CDL license.
Yes, you may need to obtain additional endorsements to your Class B CDL (Commercial Driver's License) license depending on the type of vehicle you plan to drive or the type of cargo you plan to transport.
The most common endorsements for Class B CDL holders are:
1. Passenger (P) endorsement: Required for drivers who will be operating a bus or vehicle designed to carry 16 or more passengers, including the driver.
2. School Bus (S) endorsement: Required for drivers who will be operating a school bus.
3. Tank Vehicle (N) endorsement: Required for drivers who will be operating a vehicle designed to transport liquids or gases in bulk tanks.
4. Hazardous Materials (H) endorsement: Required for drivers who will be transporting hazardous materials as defined by federal law.
To obtain an endorsement, you must pass additional written and/or skills tests and meet other requirements, such as obtaining a security clearance and providing proof of identity and residency in Idaho.
The most common endorsements for Class B CDL holders are:
1. Passenger (P) endorsement: Required for drivers who will be operating a bus or vehicle designed to carry 16 or more passengers, including the driver.
2. School Bus (S) endorsement: Required for drivers who will be operating a school bus.
3. Tank Vehicle (N) endorsement: Required for drivers who will be operating a vehicle designed to transport liquids or gases in bulk tanks.
4. Hazardous Materials (H) endorsement: Required for drivers who will be transporting hazardous materials as defined by federal law.
To obtain an endorsement, you must pass additional written and/or skills tests and meet other requirements, such as obtaining a security clearance and providing proof of identity and residency in Idaho.
The Class B CDL (Commercial Driver's License) skills test is designed to evaluate your ability to safely operate a Class B commercial vehicle and consists of three parts:
1. Pre-Trip Inspection: You will be required to inspect the vehicle to ensure that it is in safe operating condition. You will need to identify and explain any problems or defects that you find during the inspection.
2. Basic Vehicle Control: You will be required to demonstrate your ability to maneuver the vehicle through a series of maneuvers, including backing, turning, and parking.
3. On-Road Driving: You will be required to demonstrate your ability to safely operate the vehicle in real-world traffic situations. This portion of the test will include a variety of driving scenarios, such as changing lanes, merging onto highways, and navigating intersections.
During the skills test, you will be evaluated on your ability to perform each task safely and effectively while following all traffic laws and regulations. It's important to note that the skills test is conducted in an actual commercial vehicle, so you should be comfortable with driving a large vehicle before taking the test.
1. Pre-Trip Inspection: You will be required to inspect the vehicle to ensure that it is in safe operating condition. You will need to identify and explain any problems or defects that you find during the inspection.
2. Basic Vehicle Control: You will be required to demonstrate your ability to maneuver the vehicle through a series of maneuvers, including backing, turning, and parking.
3. On-Road Driving: You will be required to demonstrate your ability to safely operate the vehicle in real-world traffic situations. This portion of the test will include a variety of driving scenarios, such as changing lanes, merging onto highways, and navigating intersections.
During the skills test, you will be evaluated on your ability to perform each task safely and effectively while following all traffic laws and regulations. It's important to note that the skills test is conducted in an actual commercial vehicle, so you should be comfortable with driving a large vehicle before taking the test.
Yes, there are restrictions and limitations for drivers with a Class B CDL (Commercial Driver's License) license in Idaho.
1. Vehicle Weight: Drivers with a Class B CDL are limited to operating vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more. If the vehicle being towed has a GVWR of 10,000 pounds or more, the combined weight of the vehicle and the trailer cannot exceed 26,001 pounds.
2. Passenger Limitations: Drivers with a Class B CDL are not allowed to transport more than 16 passengers (including the driver) on a commercial vehicle.
3. Endorsement Limitations: As mentioned earlier, drivers with a Class B CDL may only operate vehicles for which they have obtained the necessary endorsements.
4. Hazardous Materials Limitations: Drivers with a Class B CDL may transport hazardous materials (as defined by federal law) only if they have obtained the necessary Hazardous Materials (H) endorsement and comply with all safety regulations related to the transportation of hazardous materials.
It's important to note that these restrictions and limitations may vary by state, so it's always important to check with your local DMV or licensing agency to ensure that you are in compliance.
1. Vehicle Weight: Drivers with a Class B CDL are limited to operating vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more. If the vehicle being towed has a GVWR of 10,000 pounds or more, the combined weight of the vehicle and the trailer cannot exceed 26,001 pounds.
2. Passenger Limitations: Drivers with a Class B CDL are not allowed to transport more than 16 passengers (including the driver) on a commercial vehicle.
3. Endorsement Limitations: As mentioned earlier, drivers with a Class B CDL may only operate vehicles for which they have obtained the necessary endorsements.
4. Hazardous Materials Limitations: Drivers with a Class B CDL may transport hazardous materials (as defined by federal law) only if they have obtained the necessary Hazardous Materials (H) endorsement and comply with all safety regulations related to the transportation of hazardous materials.
It's important to note that these restrictions and limitations may vary by state, so it's always important to check with your local DMV or licensing agency to ensure that you are in compliance.
In Idaho, the Class B CDL (Commercial Driver's License) written test is available in several languages other than English, including Spanish, Chinese, Korean, and Russian. However, it's important to note that the skills test (the driving portion) is only available in English.
If you choose to take the written test in a language other than English, you will need to indicate your language preference when you apply for your CDL. You may also need to provide additional documentation to prove your proficiency in the selected language.
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 in order to operate a commercial vehicle safely on the road. The ability to read and understand road signs and communicate with law enforcement officers and other drivers is essential for safe driving.
If you choose to take the written test in a language other than English, you will need to indicate your language preference when you apply for your CDL. You may also need to provide additional documentation to prove your proficiency in the selected language.
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 in order to operate a commercial vehicle safely on the road. The ability to read and understand road signs and communicate with law enforcement officers and other drivers is essential for safe driving.
Yes, you can request accommodations for the Class B CDL (Commercial Driver's License) written test in Idaho if you have a disability that affects your ability to take the test. The Idaho Division of Motor Vehicles (DMV) provides reasonable accommodations for individuals with disabilities in accordance with the Americans with Disabilities Act (ADA).
To request accommodations, you will need to fill out the DMV's Request for Accommodation form and provide documentation of your disability from a qualified medical professional. The documentation must describe the nature of your disability and how it affects your ability to take the test.
The DMV will review your request and work with you to determine appropriate accommodations. Accommodations may include extended testing time, use of assistive technology, or alternative test formats.
It's important to note that requests for accommodations should be made as early as possible in the CDL application process, as it may take time to arrange for appropriate accommodations.
To request accommodations, you will need to fill out the DMV's Request for Accommodation form and provide documentation of your disability from a qualified medical professional. The documentation must describe the nature of your disability and how it affects your ability to take the test.
The DMV will review your request and work with you to determine appropriate accommodations. Accommodations may include extended testing time, use of assistive technology, or alternative test formats.
It's important to note that requests for accommodations should be made as early as possible in the CDL application process, as it may take time to arrange for appropriate accommodations.
If you fail the Class B CDL (Commercial Driver's License) written test in Idaho, you will be allowed to retake the test. However, you will need to wait at least one business day before you can retake the test.
If you fail the written test three times, you will need to wait at least 30 days before you can take the test again. It's important to note that there is a fee for each attempt at the written test, so it's a good idea to study and prepare thoroughly before taking the test.
In Idaho, there are study materials available online and at DMV offices to help you prepare for the CDL written test. You may also want to consider taking a CDL preparation course or practice tests to improve your chances of passing the test on your next attempt.
Once you pass the written test, you will be eligible to take the CDL skills (driving) test. Passing both tests is necessary to obtain your Class B CDL in Idaho.
If you fail the written test three times, you will need to wait at least 30 days before you can take the test again. It's important to note that there is a fee for each attempt at the written test, so it's a good idea to study and prepare thoroughly before taking the test.
In Idaho, there are study materials available online and at DMV offices to help you prepare for the CDL written test. You may also want to consider taking a CDL preparation course or practice tests to improve your chances of passing the test on your next attempt.
Once you pass the written test, you will be eligible to take the CDL skills (driving) test. Passing both tests is necessary to obtain your Class B CDL in Idaho.
