Air Brakes #2
Air Brakes Endorsement Test | Nevada 2025 #2 Page 3 of 4
Train for FREE online with our Nevada 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 NV Class A/Class B driver license in 2025, 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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13 . Spring brakes come on:
When the brakes are noisy.
Spring brakes come on automatically when air pressure drops to an unsafe psi level. Instead of waiting for the spring brakes to automatically activate, you should safely exit the road as soon as you notice the low pressure warning signal and bring your vehicle to a stop while you are still able to control the brakes.
14 . Service brakes should:
Before driving, you should always verify that your service brakes are in good working order. Testing the brakes before a trip allows you to locate any problems before you need to brake while on the road.
15 . To use the stab braking method in an emergency situation, you should:
Apply the emergency brake.
The stab braking method for emergency stops involves fully applying the brakes until they lock up. The brakes are then released until the wheels start rolling, then the process is repeated.
16 . A low air pressure warning signal:
Any vehicle with air brakes must be equipped with a low air pressure warning signal.
17 . If you are braking on dry pavement while traveling at 55 mph, how much distance will brake lag add to your overall stopping distance?
The total stopping distance for vehicles equipped with air brakes is made up of four factors: perception distance, reaction distance, brake lag distance, and braking distance. When braking at a speed of 55 mph while driving on dry pavement, the brake lag can add around 32 feet to the vehicle's total stopping distance.
18 . 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.
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2025 Nevada | Frequently Asked Questions
To secure a CDL Doubles/Triples endorsement in Nevada, you first need to have a valid Nevada CDL. Then, you must pass the Doubles/Triples Knowledge test. Studying the Nevada Commercial Driver License Manual can help prepare for this test. After passing, you can add the endorsement to your CDL at any DMV Full Service Office.
To obtain a CDL Doubles/Triples license, you need to have a valid Commercial Driver's License (CDL). You must then pass the Doubles/Triples Knowledge Test. Preparation for this test can be done using the CDL manual. Once you pass, the endorsement can be added to your license at your local DMV office.
Specialized experience or training is not a requirement for a CDL Doubles/Triples endorsement. However, you need to pass the Doubles/Triples Knowledge Test. Studying the CDL manual can help you prepare for this test. Once passed, the endorsement can be added to your existing CDL at your local DMV office.
Yes, to obtain a CDL Doubles/Triples endorsement in Nevada, you must pass the Doubles/Triples Knowledge Test. This test covers the specific safety rules and operational practices related to driving double and triple trailer trucks. You can prepare for this test using the CDL manual available from your local DMV office.
The CDL Doubles/Triples endorsement test primarily focuses on knowledge rather than specific skills or maneuvers. The test includes topics like coupling and uncoupling, inspecting doubles and triples, and managing cargo. However, there's no specific driving skills test for this endorsement. It's crucial to understand the handling characteristics of double/triple trailers for safe operation.
No, it is not permissible to operate double or triple trailers without a valid CDL Doubles/Triples endorsement in Nevada. Operating such vehicles without the proper endorsement could result in serious penalties, including fines and potential disqualification of your commercial driving privileges. Always ensure you have the correct endorsements for the vehicle you're operating.
You can add the CDL Doubles/Triples endorsement to your existing Commercial Driver's License. You don't need to initiate a new CDL application. However, you will have to pass the written knowledge test specific to driving double and triple trailers before the endorsement can be added to your license.
Yes, there are certain limitations for drivers with a CDL Doubles/Triples endorsement. Drivers must not exceed the maximum weight limit for the trailers, which is 80,000 pounds in Nevada. Plus, they must ensure safe loading and unloading of cargo. Also, they are subject to stricter driving hours regulations and more frequent inspections due to the potential safety risks associated with these larger vehicles.
In Nevada, the maximum weight limit for double/triple trailers, with a CDL Doubles/Triples endorsement, is 80,000 pounds. The total length of a double trailer cannot exceed 81.5 feet. Remember that these limits include the length and weight of the tractor unit as well. Always ensure you comply with these restrictions to avoid penalties.
Yes, safety is paramount when driving double/triple trailers. Drivers must observe all general commercial driving rules, plus specific ones for multiple trailers. These include maintaining a safe following distance, checking that connections are secure, and taking wide turns to avoid "off-tracking." Also, drivers should be trained in coupling/uncoupling procedures and understand the high rollover risk associated with these vehicles.
