Air Brakes Endorsement Test | New Hampshire 2024 #1

Train for FREE online with our New Hampshire 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 NH 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.

Number of Question 25

Passing Score 20

Number of Tests 20

1 . A low air pressure warning signal should activate:

When tank pressure falls below 120 psi.

When tank pressure falls below 55 psi.

When tank pressure falls below 10 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.

2 . Using the brakes creates heat. If too much heat is produced:

The brakes may not work.

The brakes may squeak more than usual.

The brakes will brake unevenly.

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.

3 . When traveling down a steep downgrade:

The air brakes should be used.

The vehicle should be placed in a low gear and the driver should use engine braking.

The driver should continually downshift instead of using the brakes.

On long and/or steep downgrades, you should primarily use engine braking to control the speed of your vehicle. Use your brakes only as a supplement to this effect.

4 . 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 half

One quarter

One third

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.

5 . What is removed when an air tank is drained?

Water and oil

Ammonia

Liquid cleaners

In an air brake system, air tanks have drains to remove accumulations of water and compressor oil. Allowing water and oil to accumulate in the system could cause damage to the brakes.

6 . Some air brake systems use alcohol:

To reduce the risk of ice forming in air brake valves.

To make the compressor run more efficiently.

To lubricate parts of the braking system.

To reduce the risk of rust forming on air brake valves.

Some air brake systems contain an alcohol evaporator. This device introduces alcohol into the braking system to inhibit the formation of ice.

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2024 New Hampshire | Frequently Asked Questions

A CDL Class A license in New Hampshire is defined as a commercial driver's license that allows the holder to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, provided the towed vehicle(s) have a GVWR of more than 10,000 pounds. This includes tractor-trailers and truck and trailer combinations.

With a Class A CDL license in New Hampshire, you can operate vehicles such as tractor-trailers, truck and trailer combinations, tank vehicles, livestock carriers, and flatbeds. The license allows you to drive any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more.

To obtain a Class A CDL in New Hampshire, you must be at least 18 years old (21 for interstate driving), possess a valid New Hampshire driver's license, pass a vision test, and successfully complete a written knowledge test. Additionally, you must pass a skills test which includes a pre-trip vehicle inspection, a basic controls test, and an on-road driving examination.

In New Hampshire, you must be at least 18 years old to qualify for a Class A Commercial Driver's License (CDL) for intrastate driving, which means driving only within the state. However, to drive across state lines or handle hazardous materials, you must be at least 21 years old.

Specific endorsements are not required for a Class A CDL license, but they can provide additional privileges. For example, a Hazmat endorsement allows the transportation of hazardous materials, while a Tanker endorsement permits the operation of tank vehicles. These endorsements require additional written exams. The School Bus endorsement requires both written and skills tests.

The Class A CDL skills test in New Hampshire encompasses a pre-trip vehicle inspection to assess your ability to determine if your vehicle is safe to drive. You'll also undergo a basic controls test to evaluate your ability to control the vehicle. Lastly, you'll take an on-road driving examination to demonstrate your practical driving skills in various traffic situations.

Yes, Class A CDL license holders in New Hampshire may face restrictions based on their driving ability or the type of vehicle they tested in. For instance, if a driver takes the test in an automatic transmission vehicle, they'll be restricted to driving automatics. Other restrictions may relate to air brakes, passengers, or hazardous materials.

In New Hampshire, the written Class A CDL test is primarily offered in English. However, some locations may offer the test in Spanish. It's important to note that all CDL applicants must be able to read and speak English well enough to converse, understand traffic signs, respond to official inquiries, and make entries on reports and records.

Yes, individuals with disabilities can request accommodations for the Class A CDL written test in New Hampshire. The Division of Motor Vehicles is committed to complying with the Americans with Disabilities Act (ADA). Accommodations may include extended time, a quiet room, or a reader. Requests should be made in advance to ensure proper arrangements.

Yes, if you fail the Class A CDL written test in New Hampshire, you can retake it. However, you must wait ten days between each attempt. There's no limit to the number of times you can retake the test, but each attempt requires payment of a retest fee. It's advised to study thoroughly before retesting.