Air Brakes #2
Air Brakes Endorsement Test | Oregon 2024 #2 Page 3 of 4
Train for FREE online with our Oregon 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 OR Class A/Class B driver license in 2024, 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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13 . The application pressure gauge:
Shows the number of times the brakes have been used.
In an air brake system, the application pressure gauge shows how much air pressure is being applied to the brakes. Not all vehicles with an air brake system have this gauge.
14 . 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."
15 . Manual air tank drains should be:
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Manually operated air tank drains must be opened daily to remove this build-up.
16 . An Anti-Lock Braking System (ABS):
Should only be used if all axles have ABS.
Anti-Lock Braking Systems (ABS) are compatible with air braking systems. ABS helps maintain control of a vehicle and prevents the wheels from locking up during hard braking on slippery surfaces. ABS can still provide benefits even if is present on only one axle.
17 . Foundation brakes are used:
Foundation brakes are used on each wheel of a CMV. The most common type of foundation brake is the s-cam drum brake.
18 . During an applied leakage test, what is the maximum leakage rate that is safe for a single vehicle with air brakes?
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.
2024 Oregon | Frequently Asked Questions
A CDL Class B license in Oregon allows a driver to operate single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 or more pounds, or a vehicle towing another not exceeding 10,000 pounds. This includes buses, farm labor vehicles, and any vehicle designed to transport 16 or more passengers (including the driver).
A Class B CDL license in Oregon allows a driver to operate single vehicles with a GVWR of 26,001 or more pounds, or tow a vehicle not heavy than 10,000 pounds. It covers vehicles like city buses, delivery trucks, dump trucks with small trailers, and large straight trucks.
To acquire a Class B CDL license in Oregon, you must be at least 18 years old (21 for interstate driving), have a valid Oregon driver's license, pass a vision test, and pass the General Knowledge exam. You'll also need to pass a skills test which includes pre-trip inspection, basic controls, and on-road driving. A medical examination is also required.
In Oregon, to qualify for a Class B CDL license, you must be at least 21 years old for interstate driving and at least 18 years old for intrastate driving. You must also pass a knowledge test, a skills test, and a medical examination.
Specific endorsements aren't necessary for a Class B CDL license, but they can expand your driving opportunities. Endorsements are additional qualifications for driving certain types of vehicles or transporting specific cargo, like hazardous materials. To get an endorsement, you must pass a specific knowledge test.
The Class B CDL skills assessment in Oregon includes a pre-trip vehicle inspection to ensure the vehicle is safe to drive, a basic vehicle control test to assess your ability to handle the vehicle, and an on-road driving test to evaluate your ability to drive safely in various traffic situations and road conditions.
Yes, Class B CDL license holders are limited to operating vehicles that are under 26,001 pounds or towing vehicles that weigh less than 10,000 pounds. They cannot operate Class A vehicles without the appropriate license. Additionally, they may need specific endorsements to drive buses, tank trucks, or transport hazardous materials.
Yes, it is possible. The Oregon DMV provides the written Class B CDL test in several languages other than English. However, federal regulations require that all CDL holders understand English well enough to converse with the general public, understand highway traffic signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, you can request accommodations for the Class B CDL written exam in Oregon if you have a documented disability. The Oregon DMV provides various accommodations such as sign language interpreters, extra time, and separate testing rooms. You must make your request in advance and provide appropriate documentation to support your need for accommodation.
Yes, if you do not pass the Class B CDL written test in Oregon, you can retake it. However, there's a waiting period of one day before you can try again. The test can be retaken multiple times, but after three failures, you must wait 28 days before the next attempt. Each test attempt requires a separate fee.