Knowledge Test Class B #1
Class B Driving Test | Louisiana 2026 #1 Page 5 of 7
Train for FREE online with our Louisiana 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 LA CDL class B permit in 2026, 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.
50
40
20
29 . A ____ allows a driver to gradually apply spring brakes.
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.
30 . After a tire has been changed, the driver should stop after a short distance of driving to:
Once you have begun to drive after a tire has been changed, you should stop after a short distance to recheck the tightness of the lug nuts.
31 . When driving a vehicle, rough acceleration is:
When accelerating, speed up smoothly and gradually so your vehicle does not jerk. Rough acceleration can cause mechanical damage.
33 . Rough acceleration:
When accelerating, speed up smoothly and gradually so the vehicle does not jerk. Rough acceleration can cause mechanical damage.
34 . During a basic vehicle control skills test, a look is when:
A driver uses a look when they open their door, leave their seated position, and walk to the back of the vehicle to check its position. During the straight line backing exercise, a driver may not exceed one look. During any other exercise, a driver may not exceed two looks.
35 . If a speed limit is posted, the posted speed:
A maximum posted speed limit is the fastest a vehicle may travel under ideal circumstances. A driver should decrease their driving speed as conditions require. A driver should never exceed the legal speed limit.
2026 Louisiana | Frequently Asked Questions
To acquire a CDL Passenger endorsement in Louisiana, you need to hold a valid Commercial Driver's License (CDL). Complete the written knowledge test and skills test related to passenger vehicles at a DMV office. You'll also need to pass a physical exam and provide proof of residency and Social Security number. It's advisable to prepare using the Louisiana CDL Manual.
To obtain a Commercial Driver's License (CDL) Passenger endorsement in Louisiana, you must first possess a valid CDL. Then, pass a written knowledge test about transporting passengers. Finally, you must pass a skills test in a vehicle of the same type as the one you'll be driving. You must also be at least 21 years old to drive across state lines.
While Louisiana doesn't specifically require training to get a CDL Passenger endorsement, it's recommended to have training or experience driving large vehicles. You must pass a written knowledge test and skills test related to passenger transport, so prior experience or training can be beneficial in successfully completing these tests.
Yes, in addition to holding a valid Commercial Driver's License (CDL), you are required to pass a written knowledge test specifically about transporting passengers safely. This test covers topics like vehicle inspection, loading and trip start, on the road, after-trip vehicle inspection, prohibited practices, and use of brake-door interlocks.
During the CDL Passenger endorsement assessment, you'll need to demonstrate skills such as safe vehicle operation, proper mirror usage, correct use of signal indicators and brakes, and ability to perform pre-trip vehicle inspections. You'll also need to show proficiency in loading/unloading passengers, responding to emergency situations, and managing passenger behavior.
No, you cannot legally transport passengers in Louisiana without a valid CDL Passenger endorsement. This endorsement is required for drivers who wish to drive a vehicle designed to carry 16 or more passengers, including the driver. Driving such a vehicle without the appropriate endorsement can lead to serious penalties.
Yes, you can add the CDL Passenger endorsement to your existing Commercial Driver's License. You don't need a new application for your license, but you will need to pass the Passenger endorsement written exam and pay an additional fee. The endorsement will be added to your existing CDL upon successful completion of the exam.
Yes, there are restrictions for drivers with a CDL Passenger endorsement in Louisiana. These include not being able to consume alcohol within four hours of driving or while driving, maintaining a BAC of less than .04%, and not leaving passengers unattended in the vehicle. Violating any of these restrictions can result in fines, license suspension, or even revocation of the endorsement.
Yes, to acquire a CDL Passenger endorsement in Louisiana, you must be at least 21 years old. This is to ensure that drivers have enough experience on the road before they are entrusted with the responsibility of transporting multiple passengers. There's no upper age limit as long as you can pass the necessary physical and written exams.
With a CDL Passenger endorsement in Louisiana, you'll be qualified to operate vehicles such as buses, shuttle vans, and any other vehicle designed to transport 16 or more passengers, including the driver. This means you can work for school districts, public transit agencies, and private transportation companies.