Idaho Driver's Examination

Air Brakes #1

FREE Air Brakes Endorsement Test Online | Idaho 2024

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 2021, 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.

Number of Question 25

Passing Score 20

Number of Tests 20

1 . Why do large vehicles use air brakes?

Other brake systems squeak too loudly.

Air brakes are very effective systems.

Other braking systems are hard to come by.

If used and maintained properly, air brakes are a safe and effective way to stop large, heavy vehicles.

2 . Once the air tanks are at an air pressure level of 125 psi, the air compressor governor will:

Stop the compressor from pumping air.

Release air from the tanks.

Begin pumping air into the tanks.

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.

3 . In a dual air brake system, if one air system is very low on pressure:

None of the brakes will work at all.

Either the front or rear brakes will not be fully operable.

There is usually no noticeable effect.

In a dual air brake system, either the front or rear brakes will not be fully operable if one of the air systems gets too low on pressure. If the air pressure in either tank gets too low while you are driving, you should exit the road and park as soon as possible.

4 . Air brakes use ____ to function.

Compressed air

Liquid air

Nitrogen

Air brakes function through the use of compressed air.

5 . Manual air tank drains should be:

Opened to drain the tanks after each day.

Left open while driving.

Sealed with glue.

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.

6 . 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.

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2024 Idaho | Frequently Asked Questions

To acquire a CDL Hazmat endorsement in Idaho, you must first possess a valid Idaho Commercial Driver's License (CDL). After that, you will need to pass the Hazardous Materials Endorsement Knowledge Test. Lastly, you should complete a federal security threat assessment application, provide fingerprints, and pass an FBI background check. The endorsement will be added to your CDL once approved.

To obtain a CDL Hazmat license, you must first have a valid Commercial Driver's License (CDL). You must be at least 21 years old and be able to read and speak English. You also need to pass a physical examination every two years. Lastly, you must pass the Hazardous Materials Endorsement Knowledge Test and an FBI background check.

When applying for a CDL Hazmat endorsement, you need to provide proof of U.S. citizenship or legal status, such as a birth certificate or passport. You also need your current Commercial Driver's License (CDL), proof of Idaho residency, and your Social Security Number. Finally, you'll need to complete a federal security threat assessment application and provide fingerprints for an FBI background check.

Yes, there is a dedicated written test for the CDL Hazmat endorsement in Idaho. This test assesses your knowledge on transporting hazardous materials safely. It covers topics such as loading and unloading, bulk packaging marking, driving and parking rules, and emergency response procedures. The Idaho Commercial Driver’s License Manual is a great resource to prepare for this test.

The written test for the CDL Hazmat endorsement covers a wide range of topics related to hazardous materials. These include identifying different types of hazardous materials, understanding shipping papers, placarding rules, loading and unloading procedures, handling emergencies and incidents, and understanding the associated risks and safety precautions when transporting hazardous materials.

Yes, obtaining a CDL Hazmat endorsement in Idaho involves extra charges. You'll need to pay a fee for the knowledge test, and there's also a fee for the endorsement itself. Additionally, the TSA background check carries a separate fee. The exact costs can vary, so it's recommended to check the current fees with your local DMV office or on their website.

Yes, to obtain a Hazmat endorsement in Idaho, the Transportation Security Administration (TSA) requires a federal background check and fingerprinting. This is to ensure the driver doesn't pose a security threat. The applicant must be a U.S. citizen or have legal status, and must not have committed certain crimes.

Yes, specialized training is required for a CDL Hazmat endorsement. Applicants must pass a written test on federal and state regulations for transporting hazardous materials. While it's not mandatory, many opt for professional training programs to prepare. After passing the test, a TSA background check is also required before the endorsement is granted.

No, you cannot legally transport hazardous materials without a valid CDL Hazmat endorsement in Idaho. The endorsement ensures that drivers are trained and equipped to handle hazardous materials safely. Violating this requirement can lead to severe penalties, including fines and suspension or revocation of your commercial driver's license.

Yes, you can add the CDL Hazmat endorsement to your current CDL license. It doesn't require a new application for a CDL, but it does require passing a written test specific to Hazmat transportation, as well as a TSA background check. Once these are successfully completed, the Hazmat endorsement can be added to your existing CDL.