Knowledge Test Class A #2
Class A Driving Test | Pennsylvania 2026 #2 Page 7 of 7
Train for FREE online with our Pennsylvania 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 PA 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.
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43 . During a walk-around inspection, ensure there are no cracks on the brake drums that are more than ____ of the width of the friction area.
One tenth
Before beginning a trip, it is important to check the brake drums during your walk-around inspection. It is unsafe to drive if any brake drum has a crack more than one half of the width of the friction area.
44 . During the basic vehicle control skills test:
Excessive pull-ups are acceptable in the opinions of some test administrators.
During the basic vehicle control skills test, a pull-up will be scored any time an applicant stops and pulls forward to gain a better position. Stopping without changing direction will not. An excessive number of pull-ups will count as errors.
45 . If operating a school bus, you are considered to be driving under the influence of alcohol if you have a minimum blood alcohol content (BAC) of:
0.1 percent.
A person operating a school bus is considered to be driving under the influence of alcohol if their blood alcohol concentration (BAC) is 0.02 percent or higher.
46 . If an Anti-Lock Braking System (ABS) is equipped on a trailer but not on a tractor:
The tractor and trailer can still be used together.
A vehicle being equipped with anti-lock brakes on only the tractor or only the trailer provides additional control during braking.
47 . When inspecting engine compartment belts during the vehicle inspection test:
The applicant must identify which items are not belt-driven, if any.
When checking the engine compartment during the vehicle inspection test, you must check the power steering, water pump, alternator, and air compressor belts. In addition to cracks and frays, you should check the belts for snugness, allowing up to three-quarters of an inch of play at the center of each belt. If any of these items are not belt-driven, you must identify them and ensure that their components are operating properly, are not damaged or leaking, and are mounted securely.
48 . If a tire fails, the driver should:
Accelerate.
If a tire fails, braking could cause a loss of control. Unless braking is necessary to avoid a hazard, you should stay off the brakes until your vehicle has slowed considerably. Only then should you brake very gently, pull off the road, and stop.
49 . To correct a drive-wheel braking skid, a driver should do all of the following, except:
Accelerate.
To correct a drive-wheel braking skid, you should first remove your foot from the brake pedal to allow the locked wheels to begin rolling again. Quickly steer in the direction you want to go, then countersteer to prevent your vehicle from skidding in the opposite direction.
50 . When the brake pedal is pushed down, air brakes work:
Only if it is warm outside.
Because air takes time to flow through the air lines to the brakes, air brakes cannot begin working instantly. There is often a brake lag of at least one-half of a second between the moment the brake pedal is pressed and the moment the brakes begin to work.
2026 Pennsylvania | Frequently Asked Questions
In Pennsylvania, to secure a CDL Bus endorsement, you must first have a Commercial Driver's License (CDL). You then need to pass a Passenger Endorsement Knowledge Test and a School Bus Endorsement Knowledge Test. After passing these, you'll need to complete a School Bus Skills Test which includes a pre-trip inspection, basic controls, and an on-road driving test.
To obtain a CDL Bus license in Pennsylvania, you must first hold a valid Pennsylvania driver's license. Next, apply for a Commercial Learner's Permit (CLP) and pass the CDL general knowledge test. After 14 days, take and pass the Passenger Endorsement and School Bus Endorsement knowledge tests. Finally, pass a School Bus Skills Test, which includes on-road driving.
Yes, specific training is necessary for a CDL Bus endorsement in Pennsylvania. You must pass the Passenger Transport Test and the Skills Test in a bus-like vehicle. Although not required by law, many employers prefer drivers with professional driving experience or training from a vocational school or community college.
In Pennsylvania, CDL Bus licenses fall under three main classifications: Class A, B, and C. Class A CDL is for vehicles with a combined weight over 26,001 pounds where the vehicle being towed is over 10,000 pounds. Class B CDL is for single vehicles over 26,001 pounds or towing a vehicle not over 10,000 pounds. Class C CDL covers vehicles designed to transport 16 or more passengers.
No, you cannot use your personal vehicle for the CDL Bus driving test in Pennsylvania. The vehicle you use for the test must match the class and type of vehicle you plan to drive with your CDL. Therefore, you should use a bus for your CDL Bus driving test, ensuring it meets all safety standards and regulations.
During the CDL Bus driving test in Pennsylvania, the examiner assesses your ability to perform various maneuvers and skills. These include pre-trip vehicle inspection, basic vehicle control (including backing up, turning, and parking), and on-road driving. On-road driving tests your ability to handle intersections, railway crossings, curves, and more. You'll also be evaluated on proper passenger safety procedures.
Yes, in Pennsylvania, to obtain a CDL Bus endorsement, you must pass a Department of Transportation (DOT) physical examination. This ensures you're physically capable of operating a commercial vehicle safely. The exam assesses various health aspects including vision, hearing, blood pressure, and checks for conditions like diabetes or heart disease that could affect your ability to drive.
No, it is illegal to transport passengers in Pennsylvania without a valid CDL Bus endorsement. This endorsement is necessary for any driver operating a vehicle designed to carry 16 or more passengers, including the driver. Driving without the proper license or endorsement can result in hefty fines, penalties, and even jail time.
Yes, a CDL Bus endorsement can be added to your existing CDL license in Pennsylvania. You don't need to apply for a new license. However, you must pass the necessary written and skills tests related to passenger vehicle operation. Once you pass, the bus endorsement will be added to your existing CDL license.
Yes, there are limitations for drivers with a CDL Bus endorsement in Pennsylvania. Drivers must not have more than two moving violations in a commercial vehicle in the past two years. They also cannot have any conviction for a disqualifying offense while operating a commercial vehicle, such as DUI, hit-and-run, or felony involving a vehicle.