Air Brakes #1
Air Brakes Endorsement Test | Alaska 2024 #1 Page 4 of 4
Train for FREE online with our Alaska 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 AK 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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19 . 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 55 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.
20 . What helps prevent wheel lockup when braking?
The purpose of an Anti-Lock Braking System (ABS) is to prevent wheel lockup while brakes are being applied.
21 . Anti-Lock Braking Systems (ABS):
If equipped, ABS is in addition to a vehicle's normal braking system and does not increase or decrease the braking power of any other system. ABS only activates when a vehicle's wheels are about to lock.
22 . What is often found in compressed air?
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. Tanks must be drained regularly to remove this build-up.
23 . A dual air brake system:
A dual air brake system is made up of two separate air brake systems. The systems share a single set of brake controls, but each has its own air tanks, hoses, and lines. One system typically operates the regular brakes on the rear axle or axles while the other system operates the regular brakes on the front axle.
24 . Friction in an S-cam brake is caused when the brake shoes and linings:
Friction inside a brake drum is caused when the brake shoes and linings push against the inside of the drum. The friction in the drums will slow and stop the vehicle.
25 . Some water and compressor oil is usually found in the compressed air within an air brake system. The water and compressor oil:
If water and compressor oil are left to build up in an air brake system, the system can be damaged. Air storage tanks are equipped with drains to allow this accumulation to be removed. Manually controlled drains should be operated at the end of each day of driving.
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2024 Alaska | Frequently Asked Questions
A CDL Class A license in Alaska is defined as a commercial driver's license that allows holders to operate any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, provided the towed vehicle is heavier than 10,000 pounds. It typically covers vehicles like tractor-trailers, truck and trailer combinations, tank vehicles, and livestock carriers.
A Class A CDL license in Alaska allows the holder to operate vehicles such as tractor-trailers, truck and trailer combinations, flatbeds, livestock carriers, and tank vehicles. The license covers any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, given the towed vehicle exceeds 10,000 pounds.
To obtain a Class A CDL license in Alaska, you must be at least 18 years old (21 for interstate driving), possess a valid driver's license, pass a vision test, and complete a written knowledge test. You're also required to pass a skills test, which includes a pre-trip vehicle inspection, a basic vehicle control test, and an on-road driving exam.
In Alaska, you must be at least 18 years old to obtain a Class A CDL for intrastate driving (within state lines). However, federal regulations require drivers to be at least 21 years old to drive commercial vehicles across state lines (interstate) or to transport hazardous materials.
While specific endorsements aren't required for a Class A CDL, they allow you to operate specialized vehicles. Endorsements include H (Hazardous Materials), N (Tank Vehicles), P (Passenger Vehicles), S (School Buses), T (Double/Triple Trailers), and X (Combination of Tank Vehicle and Hazardous Materials). Each requires an additional knowledge test, and some require a skills test.
The Class A CDL skills test in Alaska consists of three parts: a pre-trip vehicle inspection to assess your ability to determine if your vehicle is safe to drive, a basic vehicle control test to evaluate your ability to control the vehicle, and an on-road driving exam where you demonstrate your ability to safely drive the vehicle on public roads.
Yes, there are limitations for Class A CDL license holders. These include restrictions based on the driver's experience, age, health status, and specific vehicle features. For instance, drivers may have restrictions if they fail the air brake portion of the test or if they drive a vehicle without a full air brake system. Also, drivers under 21 are restricted to intrastate driving.
In Alaska, the written Class A CDL test is primarily administered in English to ensure drivers can understand road signs and signals. However, the state allows the use of translators or interpreters for those who don't speak English fluently. It's advisable to contact your local DMV office beforehand to confirm their specific policies regarding language assistance.
Yes, accommodations can be made for the Class A CDL written test in Alaska if you have a disability. You need to inform the DMV about your specific needs when scheduling your test. They can provide aids such as audio versions of the test, extra time, or quiet testing environments depending on your requirements.
Yes, if you don't pass the Class A CDL written test in Alaska, you can retake it. However, you must wait at least one day before retaking the test. The Alaska DMV allows multiple attempts, but repeated failures may require additional training or instruction before another attempt is allowed. Fees may apply for each test attempt.
