Air Brakes #1
Air Brakes Endorsement Test | New York 2025 #1 Page 4 of 4
Train for FREE online with our New York 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 NY 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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19 . Where is the safety relief valve usually located?
On the dashboard
An air brake system's safety relief valve is located in the tank that is first to receive air from the compressor.
20 . What happens if the air pressure in a system's air tanks falls below 60 psi?
The vehicle should stop.
In an air brake system, a low pressure warning signal should activate if the pressure in the air tanks falls to a level below 60 psi. This signal may be in the form of a warning light or a wig wag.
21 . Most heavy-duty vehicles use:
Quadruple air brake systems.
Most heavy-duty vehicles use dual air brake systems, in which there are two separate braking systems operated by a single set of controls. Each system operates the brakes on different axles.
22 . To inspect slack adjusters on S-cam brakes, you need to:
Chock the wheels and disengage the parking brake.
Check each slack adjuster after parking on level ground, setting wheel chocks, and disengaging the parking brake. Pull the slack adjusters to make sure they do not move more than about one inch from where the push rod is attached. If they move more than one inch, they may be out of adjustment and will need to be fixed.
23 . What is removed when an air tank is drained?
Chlorine
In an air brake system, the air storage tanks are equipped with drains to allow water and compressor oil to be removed. The water and oil can damage the brakes if left to accumulate in the system.
24 . During an applied leakage test, the maximum leakage rate for a single vehicle with air brakes is:
4 psi in one minute.
It is important to know the maximum air loss rate that is safe for your specific vehicle. A single vehicle with air brakes should have a leakage rate no higher than 3 psi in a minute during an applied leakage test.
25 . When only the tractor is equipped with an Anti-Lock Braking System (ABS):
The brakes will become more sensitive.
If a tractor is equipped with an Anti-Lock Braking System (ABS) but the trailer is not, the risk of jackknifing will be reduced and the driver should still be able to maintain steering control. If only the trailer is equipped with ABS, it is less likely that the trailer will swing out to one side.
See the exact questions that will be on the 2025 New York DMV exam.
99.2% of people who use the cheat sheet pass the FIRST TIME
Lillian MCcranie explains how our CDL study guide was helpful in passing the exam and recommends it to everyone.
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2025 New York | Frequently Asked Questions
A CDL Class B license in New York allows you to operate single vehicles with a GVWR of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds. It covers vehicles like straight trucks, large buses, segmented buses, and trucks towing smaller units.
A Class B CDL license in New York allows you to operate single vehicles with a GVWR of 26,001 or more pounds, or a vehicle towing another not exceeding 10,000 pounds. This includes straight trucks, large buses, segmented buses, box trucks, and dump trucks with small trailers.
To acquire a Class B CDL license in New York, you must be at least 21 years old (18 for intrastate), possess a valid NYS driver's license, pass a medical examination, and pass both a written knowledge test and a skills test, which includes a pre-trip vehicle inspection, a basic controls test, and a road test.
To qualify for a Class B CDL license in New York, you must be at least 21 years old to drive across state lines or carry hazardous materials. For in-state transport, the minimum age is 18. You also need to have a valid New York State driver's license.
Specific endorsements are not necessary for a Class B CDL license, but they can expand your job opportunities. Endorsements certify you to drive certain types of vehicles such as school buses (S endorsement), passenger vehicles (P endorsement), or tank vehicles (N endorsement). Each requires passing a specific knowledge test, and some require a skills test.
The Class B CDL skills assessment in New York includes a pre-trip vehicle inspection, a basic control skills test, and a road test. The pre-trip inspection evaluates your ability to assess your vehicle's safety. The basic control skills test checks your ability to maneuver the vehicle. The road test evaluates your on-road driving skills.
Yes, Class B CDL license holders in New York are limited to driving single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or a vehicle towing another not exceeding 10,000 pounds GVWR. They cannot drive a combination of vehicles (like a tractor-trailer) unless they have a Class A CDL.
Yes, in New York, the written Class B CDL test is available in several languages other than English. These include Spanish, Polish, Russian, Korean, and Chinese. However, federal regulations require all CDL holders to read and speak English sufficiently to converse with the general public, understand highway signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, you can request test accommodations for the Class B CDL written exam if you have a disability. The New York DMV provides reasonable testing accommodations to individuals with documented disabilities. These may include extended testing time, separate testing room, or use of assistive technology. You must provide documentation to validate your request for accommodation.
Yes, you can retake the Class B CDL written test in New York if you don't pass the first time. You must wait at least one day before retaking the test. However, it's recommended to review the manual and study your weak areas before retaking. Keep in mind, additional fees may apply for each retest.
