Air Brakes #2
Air Brakes Endorsement Test | Pennsylvania 2025 #2 Page 2 of 4
Train for FREE online with our Pennsylvania CDL air brake 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 Class A/Class B driver license in 2025, 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 the requirements for CDL may vary from state to state.
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7 . Pressing and releasing a brake pedal unnecessarily can:
Create a loud noise.
In an air brake system, pressing and releasing the brake pedal unnecessarily can release air from the braking system faster than the compressor can replace it.
8 . A low air pressure warning signal should activate:
When tank pressure falls below 5 psi.
In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 60 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.
9 . The air storage tanks:
Hold enough air for more than 1,000 braking cycles.
In an air brake system, the air storage tanks hold enough air for brakes to be used several times if the compressor stops working.
10 . Brake fading is caused when:
Brakes are wet.
Using the brakes excessively will cause them to overheat, making them less effective. This is referred to as "fading."
11 . The ____ tells a driver how much pressure is in the air tanks.
Drum brake
A vehicle that is equipped with air brakes must also be equipped with a supply pressure gauge. This gauge tells the driver how much air pressure is in each of the vehicle's air tanks.
12 . How is the parking brake released?
By tapping the accelerator twice
In newer vehicles with air brakes, the parking brakes are controlled by a diamond-shaped yellow knob. Pull the knob out to activate the parking brakes and push it in to release them.
2025 Pennsylvania | Frequently Asked Questions
A CDL Class B license in Pennsylvania allows the holder to operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or any such vehicle towing another not exceeding 10,000 pounds GVWR. This includes buses, farm labor vehicles, dump trucks, delivery trucks, and utility vehicles.
With a Class B CDL license in Pennsylvania, you can operate single vehicles like buses, dump trucks, tow trucks, delivery trucks, and garbage trucks. These vehicles have a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or they may be towing another vehicle not exceeding 10,000 pounds GVWR.
In Pennsylvania, to acquire a Class B CDL license, you must be at least 18 years old (21 for interstate driving), hold a valid Pennsylvania driver's license, pass a vision test, and successfully complete a knowledge test. You'll also need a medical examiner's certificate, proving you're physically fit for the job. Lastly, you'll need to pass a road skills test in a Class B vehicle.
In Pennsylvania, you must be at least 18 years old to qualify for a Class B CDL license for intrastate driving (within state lines). However, to drive a commercial vehicle across state lines (interstate driving), you must be at least 21 years old.
While not always necessary, specific endorsements may be required for certain types of Class B CDL driving in Pennsylvania. These endorsements, such as passenger, school bus, or hazardous materials, require additional knowledge tests. Having these endorsements can broaden your job opportunities as a commercial driver.
The Class B CDL skills assessment in Pennsylvania includes three parts: a pre-trip inspection test, a basic vehicle control test, and an on-road driving test. The pre-trip inspection tests your knowledge about your vehicle and its safety. The basic vehicle control test assesses your ability to maneuver and control the vehicle. The on-road driving test evaluates your driving skills in various traffic situations.
Class B CDL license holders in Pennsylvania are limited to operating vehicles with a Gross Vehicle Weight Rating (GVWR) over 26,000 pounds or towing a vehicle not exceeding 10,000 pounds. They cannot operate Class A vehicles unless they have the appropriate endorsements. Additionally, interstate drivers must be at least 21 years old.
Yes, it is possible to take the written Class B CDL test in languages other than English in Pennsylvania. The Pennsylvania Department of Transportation provides the test in several languages. However, a basic understanding of English is required, as federal regulations mandate that all CDL holders understand English to a degree necessary to operate their vehicle safely.
Yes, you can request test accommodations for the Class B CDL written exam in Pennsylvania due to a disability. The Pennsylvania Department of Transportation provides accommodations under the Americans with Disabilities Act. These may include extended time, a separate testing room, or use of assistive technology. Contact PennDOT directly to discuss your specific needs.
If you don't pass the Class B CDL written test in Pennsylvania, you can retake it. However, you must wait at least 3 days before retesting. There is also a retest fee each time you take the test. It's recommended to study thoroughly and use the available practice tests to increase your chances of passing on your next attempt.