FREE CDL Combination Vehicles Practice Test Online | Arizona 2024
Train for FREE online with our Arizona 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 AZ 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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1 . 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.
2 . The tractor protection valve:
A tractor protection valve keeps air in a tractor or truck air brake system should the trailer break away or develop a bad leak. The valve will close automatically if the pressure drops to an unsafe level.
3 . 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.
4 . Older trailers are not equipped with spring brakes. This means that if the air supply for a vehicle's air braking system leaks away:
Older trailers do not have spring brakes. This means that if the air supply in an older trailer's air tank has leaked away, there will be no working brakes connected to the trailer and its wheels will turn freely.
5 . If a parked trailer does not have spring brakes, you should keep the trailer from moving by:
If a parked trailer does not have spring brakes, wheel chocks should be used to prevent it from moving.
6 . When coupling a trailer, you should:
When coupling air brake hoses, you should make sure the proper pairs of gland hands are connected. They are sometimes color-coded to help drivers avoid mistakes. Typically, blue is used for service lines and red is used for emergency lines.
7 . When coupling a trailer:
When coupling, make sure you couple matching glad hands. They are often color-coded to help drivers avoid mistakes. Typically, blue is used for service lines and red is used for emergency lines.
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2024 Arizona | Frequently Asked Questions
To acquire a CDL Tank endorsement in Arizona, you must first have a Commercial Driver's License (CDL). Then, study the Arizona Commercial Driver License Manual’s tank vehicle section. After that, schedule and pass the Tank Vehicle endorsement written test at an Arizona Motor Vehicle Division (MVD) office. The endorsement will be added to your CDL upon passing the test.
To obtain a CDL Tank license, it's essential to first have a Commercial Driver's License (CDL). Then, you need to study the tank vehicle section of the Commercial Driver License Manual. Once you're prepared, schedule and pass the Tank Vehicle endorsement written test at your local Motor Vehicle Division (MVD) office. The endorsement is added to your CDL upon passing.
While specific training or experience is not legally mandatory for a CDL Tank endorsement in Arizona, it's highly recommended to understand the unique handling characteristics and safety concerns of tank vehicles. Studying the tank vehicle section of the Arizona Commercial Driver License Manual thoroughly is crucial. Practical experience or training can significantly improve your chances of passing the endorsement test.
Yes, to obtain a CDL Tank endorsement in Arizona, you must pass an additional written test that focuses on the knowledge required to safely operate a tank vehicle. This includes understanding the vehicle's handling characteristics, inspecting tank vehicles, and understanding the effects of surge and liquid movement on vehicle stability.
The written test for the CDL Tank endorsement in Arizona includes subjects such as tank vehicle inspection, safe driving techniques, loading and unloading procedures, and emergency response. Additionally, it covers topics like identifying hazardous materials, understanding weight distribution, and proper placarding requirements.
The CDL Tank endorsement assessment primarily focuses on knowledge rather than specific maneuvers. It evaluates your understanding of inspecting tank vehicles, recognizing high center of gravity and its effects, handling stability and surge, safe driving rules, emergency procedures, and understanding the operation of special purpose tanks.
Yes, drivers with a CDL Tank endorsement must comply with federal and state regulation regarding load limits, vehicle inspections, and hours of service. They also must handle hazardous materials appropriately if they have a Hazardous Materials (HazMat) endorsement. Additionally, they cannot operate a tank vehicle under the influence of alcohol or drugs.
No, a valid CDL Tank endorsement is required to transport liquid or gas materials. This requirement is strictly enforced under federal and state laws. Driving without the proper endorsement can lead to fines, license suspension, and even imprisonment. It's essential to obtain the correct endorsements for the specific type of cargo you'll be transporting.
The CDL Tank endorsement can be added to an existing Commercial Driver's License. You don't need a fresh application. However, you'll have to pass a knowledge test specific to tank vehicles. Once you pass the test, the endorsement will be added to your CDL, allowing you to transport liquid or gas materials legally.
Yes, handling hazardous materials with a CDL Tank endorsement requires additional training and certification. Drivers must obtain a Hazardous Materials (HazMat) endorsement, which involves passing a written test and a TSA background check. Additionally, they must follow specific safety protocols when loading, unloading, and transporting these materials to prevent accidents and spills.
