FREE CDL Combination Vehicles Practice Test Online | Oklahoma 2024 Page 3 of 3
Train for FREE online with our Oklahoma CDL combination vehicle 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 OK combination 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 DMV requirements for issuing a combination license may vary from state to state.
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15 . If the emergency air line loses pressure:
The tractor protection valve keeps air in the trailer's braking system should the trailer break away or develop a leak. A loss of air pressure in the emergency line will cause the tractor protection valve to open and the emergency trailer brakes to activate.
16 . When driving while pulling trailers, you should:
You should always steer gently and smoothly while pulling a trailer. Making sudden steering moves could cause the trailer to tip over.
17 . Rearward amplification refers to:
Vehicles with trailers are vulnerable to rollover due to the "crack-the-whip" effect, which is caused by rearward amplification.
18 . What does an Anti-Lock Braking System (ABS) do?
An Anti-Lock Braking System (ABS) helps prevent wheel lockup during hard braking. If ABS detects impending lockup, it reduces braking pressure to a safe level.
19 . Fully-loaded rigs:
Fully-loaded rigs are more vulnerable to rolling over than empty rigs because the weight of the cargo gives the vehicles higher centers of gravity.
20 . Keeping cargo low can:
Rollovers can happen when a combination vehicle is turned too quickly. To help prevent the risk of rollover, it is important to keep the vehicle's center of gravity low by loading cargo as close to the ground as possible.
2024 Oklahoma | Frequently Asked Questions
To acquire a CDL Tank endorsement in Oklahoma, you first need a Commercial Driver's License (CDL). Then, study the state's CDL manual section on Tank Vehicles. After studying, you'll take a written knowledge test at a Department of Public Safety testing facility. Passing this test grants you the Tank endorsement on your CDL.
To obtain a CDL Tank license, you must first have a Commercial Driver's License (CDL). It's essential to study the Tank Vehicles section in the state's CDL manual. You'll then need to pass a written knowledge test at a Department of Public Safety testing facility. On passing, you'll receive the Tank endorsement on your CDL.
Specific training or experience isn't mandatory for a CDL Tank endorsement in Oklahoma. However, you need to study the Tank Vehicles section in the state's CDL manual. After that, pass a written knowledge test at a Department of Public Safety testing facility. It's also beneficial to have practical experience driving commercial vehicles.
Yes, to obtain a CDL Tank endorsement in Oklahoma, you must pass an additional written knowledge test focused on tank vehicles. This test covers topics like inspecting tank vehicles, driving tank vehicles, and safe driving rules. The information for the test can be found in the Oklahoma CDL manual's Tank Vehicles section.
The written test for a CDL Tank endorsement in Oklahoma covers various topics including: how to inspect tank vehicles, recognizing high center of gravity and its effects, handling bulk tanks, and understanding the dangers of surge. It also includes rules for safe driving, loading and unloading, and emergency procedures. The Oklahoma CDL manual provides further details.
The CDL Tank endorsement assessment in Oklahoma focuses on knowledge rather than specific driving maneuvers. It evaluates your understanding of inspecting tank vehicles, handling surge, recognizing the high center of gravity, safe driving practices, and emergency procedures. However, you must still demonstrate proficient general driving skills during your CDL road test.
Drivers with a CDL Tank endorsement must adhere to strict safety regulations due to the hazardous nature of the materials often transported. These include limitations on speed, specific loading/unloading procedures, and mandatory rest periods to prevent fatigue. Violations can result in fines, license suspension, or even revocation of the CDL endorsement.
No, liquid or gas materials cannot be transported without a valid CDL Tank endorsement in Oklahoma. This endorsement is required for drivers operating a commercial vehicle that is designed to transport any liquid or gaseous materials within a tank. Driving without the necessary endorsements can result in significant fines and penalties.
To add the CDL Tank endorsement to your current license in Oklahoma, you will need to complete the Tanker Vehicle Endorsement Application and pay the required fee. You may also need to pass a knowledge test specific to tank vehicles. If you meet the requirements, you can add the endorsement to your existing license without having to submit a fresh application.
Yes, handling hazardous materials with a CDL Tank endorsement in Oklahoma requires adherence to specific regulations. Drivers must pass the Hazmat Endorsement Knowledge Test and a TSA background check. They also need to follow safety protocols while loading, unloading, and transporting hazardous materials. Non-compliance can lead to penalties, including loss of endorsement.