Knowledge Test Class A #2
Class A Driving Test | Oklahoma 2026 #2 Page 3 of 7
Train for FREE online with our Oklahoma class A 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 OK CDL class A 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 A requirements may vary from state to state.
50
40
20
15 . When a vehicle is started, the coolant temperature should:
After an engine is started, the coolant temperature should rise gradually to a normal operating range.
16 . Rust around wheel nuts may mean:
Rust around wheel nuts may mean that they are loose. Check the tightness of the nuts if you see any rust in the area.
17 . If planning to back a vehicle where there may be overhanging objects, a driver should:
Because you can't see everything behind you, driving in reverse is always dangerous and should be done only when necessary. Before backing into an area, you should exit your vehicle and inspect the path of travel to check for potential hazards, especially overhanging objects that would otherwise be difficult to spot in a mirror.
18 . You should ____ if the low pressure warning signal activates while you are driving.
If the low pressure warning signal activates while you are driving, it is important that you safely exit the roadway as soon as possible and park your vehicle. If the air pressure gets too low, the brakes will no longer work well enough for you to stop safely.
19 . Roads are especially slippery right after it begins to rain because:
Roads are often especially slippery when it first begins to rain. Rainwater forms a slick film when mixed with oil and grease on the road surface that has not yet washed away.
20 . Livestock:
Because live animals can lean during curves, and otherwise move in transit, the weight distribution of a cargo of livestock is unstable. Driving with livestock requires special care.
21 . By beginning a left turn before reaching the center of an intersection, you:
When planning to turn left at an intersection, make sure you have reached the center of the intersection before beginning the turn. If you turn too soon, off-tracking may cause the left side of your vehicle to hit another vehicle.
2026 Oklahoma | Frequently Asked Questions
In Oklahoma, to acquire a CDL Passenger endorsement, you must first possess a Commercial Driver’s License (CDL). Next, study the Oklahoma CDL manual's passenger transport section. After studying, schedule and pass the written knowledge test at a Department of Public Safety testing facility. Some may also need to pass a skills and driving test in the type of vehicle you plan to operate.
To obtain a CDL Passenger license in Oklahoma, you must be at least 21 years old, possess a valid Commercial Driver's License (CDL), and pass the passenger transport written knowledge test. In some cases, you may also need to pass a skills and driving test in the type of vehicle you plan to operate. A clean driving record is also crucial.
While Oklahoma doesn't require specific training to secure a CDL Passenger endorsement, it's recommended to have training for the best chance of passing the written and skills tests. Experience driving commercial vehicles can also be beneficial. Studying the passenger transport section of the Oklahoma CDL manual is crucial to understand regulations and safety procedures.
Yes, to obtain a CDL Passenger endorsement in Oklahoma, you must pass the Passenger endorsement written test. This test covers topics such as vehicle inspection, loading and trip start, on the road, after-trip vehicle inspection, prohibited practices, and use of brake-door interlocks. No additional road skills test is required for this endorsement.
During the CDL Passenger endorsement assessment, you'll need to demonstrate skills such as proper pre-trip inspection, safe loading and unloading of passengers, use of emergency exits, responding to emergency situations, and safely navigating the vehicle on the road. You'll also need to show proficiency in driving in various conditions and handling different passenger scenarios.
No, you cannot legally transport passengers in Oklahoma without a valid CDL Passenger endorsement. This endorsement is required for drivers who wish to operate a vehicle that can carry 16 or more passengers, including the driver. Driving such a vehicle without the appropriate endorsement can result in penalties, including fines and suspension of driving privileges.
Yes, you can add a CDL Passenger endorsement to your existing commercial driver's license in Oklahoma. You don't need a new application. You'll need to pass the Passenger endorsement written test and pay the required fees. Once you've passed, the endorsement will be added to your current CDL.
Yes, there are certain restrictions for drivers with a CDL Passenger endorsement in Oklahoma. Drivers must not have any serious traffic violations within the past two years. They are also required to pass a background check and must not have any prior disqualifying criminal offenses. Additionally, drivers are expected to maintain a high level of safety and compliance with all transportation regulations.
Yes, in Oklahoma, to obtain a CDL Passenger endorsement, you must be at least 21 years old. This is because interstate driving is often involved when transporting passengers, and federal regulations mandate a minimum age of 21 for interstate commercial driving. So, you must meet this age requirement before you can apply for the endorsement.
With a CDL Passenger endorsement in Oklahoma, you will be eligible to operate vehicles designed to transport 16 or more passengers, including the driver. This includes buses, vans, and other vehicles used for public transportation or for-hire transportation services. The endorsement is required if you plan to operate a commercial vehicle that falls into this category.