Air Brakes #2
Air Brakes Endorsement Test | Montana 2024 #2 Page 4 of 4
Train for FREE online with our Montana 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 MT 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.
25
20
20
19 . 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.
20 . Front brake limiting valves were intended to:
Remove uncertainty when applying the brakes.
Some older vehicles with air brakes have front brake limiting valves. These valves were intended to reduce the risk of front wheels skidding. However, research has shown that such devices are unnecessary, so they should be left in the "normal" position.
21 . Failing to drain air tanks could result in:
In an air brake system, the air tanks must be periodically drained to remove accumulations of water and compressor oil. If water is not removed, it could freeze in cold weather and cause brake failure.
22 . What do anti-lock brakes do?
Prevent a vehicle from accelerating while traveling downhill
The function of an Anti-Lock Braking System (ABS) is to prevent the vehicle's wheels from locking up from hard brake application.
23 . Using the brakes creates heat. If too much heat is produced:
Brakes are designed to take a lot of heat, but drivers should not rely solely on the brakes to slow their vehicle. Brakes may fade and lose their ability to slow down the vehicle if they become too hot, so drivers should also rely on the engine braking effect.
24 . Why should you regularly drain the air tanks?
Compressed air usually contains a certain amount of moisture and compressor oil, which can build up in the air storage tanks and damage the brake system. The tanks should be drained to clean out these accumulations. On a tank with a manual drain valve, draining should be performed at the end of each day of driving.
25 . Once the air tanks are at an air pressure level of 125 psi, the air compressor governor will:
An air compressor governor will stop the compressor from pumping air once the air tanks are at an air pressure level around 125 psi. This air pressure level is referred to as the "cut-out" level.
2024 Montana | Frequently Asked Questions
A CDL Class A license in Montana is defined as a commercial driver's license permitting the holder to operate any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, provided the GVWR of the vehicle(s) being towed is over 10,000 pounds. It covers vehicles like tractor-trailers, truck and trailer combinations.
A Class A CDL license in Montana allows you to operate vehicles such as tractor-trailers, truck and trailer combinations, tank vehicles, and livestock carriers. It covers any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, provided the towed vehicle(s) is over 10,000 pounds.
To obtain a Class A CDL license in Montana, you must be at least 18 years old (21 for interstate driving), possess a valid Montana driver's license, pass a vision test, and successfully complete both a written knowledge test and a skills test which includes a pre-trip vehicle inspection, a basic vehicle control test, and an on-road driving exam.
In Montana, you must be at least 18 years old to qualify for a Class A Commercial Driver's License (CDL) for intrastate driving (within Montana only). However, to drive interstate (across state lines) or carry hazardous materials, you must be at least 21 years old.
Endorsements are not required for a Class A CDL license, but they provide additional driving privileges. For instance, you may need a Hazardous Materials (H) endorsement to haul hazardous freight, a Tank (N) endorsement to drive tank vehicles, or a Passenger (P) endorsement to transport passengers. Each endorsement requires passing a specific knowledge test.
The Class A CDL skills test in Montana includes three sections: a pre-trip vehicle inspection to ensure the vehicle is safe to drive, a basic vehicle control test to verify your ability to control the vehicle, and an on-road driving exam to assess your ability to drive the vehicle in various road and traffic conditions.
Yes, there are limitations imposed on Class A CDL license holders. Some limitations or restrictions may include: not being permitted to operate a manual transmission if you passed your test in an automatic vehicle, not being allowed to drive a school bus without the proper endorsement, or being required to wear corrective lenses while driving if it's indicated on the license.
In Montana, the written Class A CDL test is primarily administered in English. This is in line with Federal regulations requiring all commercial drivers to read and speak English sufficiently to converse with the general public, understand highway traffic signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, in Montana, accommodations can be made for the Class A CDL written test if you have a disability. You'll need to provide documentation of your disability and specify the type of accommodation needed. It's recommended to contact the Montana Motor Vehicle Division beforehand to ensure all necessary arrangements are made.
Yes, if you don't pass the Class A CDL written test in Montana, you can retake it. However, you must wait at least one day before attempting the test again. Keep in mind that each retest may involve additional fees. It's recommended to review and study the areas you struggled with before retaking the test.