Air Brakes #2
Air Brakes Endorsement Test | Idaho 2024 #2 Page 2 of 4
Train for FREE online with our Idaho 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 ID 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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7 . 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.
8 . What is brake lag?
Because air takes time to flow through the air lines to the brakes, air brakes cannot begin working instantly. There is often a brake lag of at least one-half of a second between the moment the brake pedal is pressed and the moment the brakes begin to work.
9 . The rods in S-cam brakes move the slack adjusters when air pressure is added to the brake chambers. This air pressure is added to the chambers when the driver:
When pressing the brake pedal in a vehicle with S-cam brakes, air will enter the brake chambers. The added air pressure will push out the rods and move slack adjusters, twisting the brake camshafts.
10 . When parked on a flat surface, you should:
When parking on a level surface, you should use wheel chocks. If the vehicle is not equipped with spring brakes, this is essential to prevent the trailer from moving.
11 . Why do large vehicles use air brakes?
If used and maintained properly, air brakes are a safe and effective way to stop large, heavy vehicles.
12 . In a dual air brake system, air pressure should build from 85 to 100 psi within ____ seconds.
When inspecting a vehicle with a dual air brake system, you should wait for air pressure to build from 85 to 100 psi in both the primary and secondary systems. This should take about 45 seconds.
2024 Idaho | Frequently Asked Questions
A CDL Class A license in Idaho is defined as a commercial driver's license that allows the holder 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.
A Class A CDL license in Idaho allows the holder to operate vehicles such as tractor-trailers, truck and trailer combinations, tank vehicles, livestock carriers, and flatbeds. The license covers any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more if the towed vehicle exceeds 10,000 pounds.
To obtain a Class A CDL license in Idaho, you must be at least 18 years old (21 for interstate driving), possess a valid Idaho non-commercial license, pass a vision test, and successfully complete knowledge and skills tests. You also need to provide proof of age, identity, residency, and social security number. Medical requirements must be met too.
In Idaho, you must be at least 18 years old to qualify for a Class A CDL license for intrastate driving (within Idaho). However, you must be at least 21 years old to drive a commercial vehicle across state lines, carry hazardous materials, or transport interstate freight within the state.
While specific endorsements are not required for a Class A CDL license, they can provide additional permissions. Endorsements include H for hazardous materials, N for tank vehicles, P for passenger vehicles, S for school buses, T for double/triple trailers. Each endorsement requires passing additional knowledge and skills tests.
The Class A CDL skills test in Idaho encompasses three main parts: a pre-trip inspection, a basic vehicle control test, and an on-road driving test. The pre-trip inspection assesses your ability to inspect your vehicle before driving. The basic control test evaluates your ability to maneuver and control the vehicle. The on-road test examines your on-road driving skills.
Yes, there are limitations. Class A CDL license holders in Idaho are not allowed to operate a vehicle with a Gross Vehicle Weight Rating (GVWR) of more than 26,001 pounds, or tow a vehicle heavier than 10,000 pounds unless they have the appropriate endorsements. They also cannot transport hazardous materials without an H endorsement or operate a passenger vehicle without a P endorsement.
In Idaho, the written Class A Commercial Driver's License (CDL) test is typically administered in English. However, some locations may offer the test in Spanish. It is important to note that all CDL holders must be able to read and speak 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 A CDL written test in Idaho if you have a disability. The Idaho Transportation Department complies with the Americans with Disabilities Act (ADA) and provides reasonable accommodations for applicants with disabilities. However, you must still meet the essential eligibility requirements for obtaining a CDL.
If you fail the Class A CDL written test in Idaho, you'll be allowed to retake the test. However, you have to wait at least three days before you can retake it. If you fail three times, you must wait 30 days before retesting. There's no limit to the number of times you can retake the test, but each attempt requires a new fee.