FREE CDL Combination Vehicles Practice Test Online | Indiana 2024 Page 3 of 3
Train for FREE online with our Indiana 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 IN 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 . What is a tractor protection valve?
A valve that prevents the trailer from accidentally being released
In a combination vehicle with air brakes, the tractor protection valve keeps air in the tractor or truck brake system in the event of the trailer breaking away or developing a leak.
16 . What happens when the wheels of a trailer lock up?
The trailer will stop.
A trailer tends to swing around, potentially resulting in a trailer jackknife, if its wheels lock up.
17 . What is another name for the service line?
The power line
The trailer service air line is also referred to as the control line or signal line.
18 . Which of the following types of vehicles is most prone to the “crack-the-whip" effect?
A triple combination
Double and triple combinations are the most vulnerable to turning over as a result of the "crack-the-whip" effect.
19 . After finishing a pre-trip inspection, you should:
Leave the emergency line valve open.
Before a trip, you should ensure that air reaches all air brakes on all trailers by opening up the rear emergency line and service line shut-off valves to listen for escaping air. Close both shut-off valves before beginning to drive.
20 . If you are operating a vehicle built before 1998 and are unsure if the trailer has an Anti-Lock Braking System (ABS), you can:
Assume the vehicle has ABS.
If you are operating a vehicle built before 1998 and are unsure if the trailer has an Anti-Lock Braking System (ABS), you can check under the trailer for wheel speed sensors coming from the back of the brakes.
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2024 Indiana | Frequently Asked Questions
A CDL Class A license in Indiana is defined as a commercial driver's license that permits the holder to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, provided the GVWR of the vehicle(s) being towed exceeds 10,000 pounds. This includes tractor-trailers, truck and trailer combinations, and flatbeds.
A Class A Commercial Driver's License (CDL) in Indiana allows you to operate vehicles such as tractor-trailers, truck and trailer combinations, tank vehicles, livestock carriers, and flatbeds. You can drive vehicles with a Gross Vehicle Weight Rating (GVWR) exceeding 26,001 pounds, provided the GVWR of the vehicle being towed is more than 10,000 pounds.
To obtain a Class A CDL license in Indiana, you must be at least 18 years old (21 for interstate driving), possess a valid Indiana driver's license, pass a vision test, and obtain a medical clearance. You must also pass a written knowledge test and a skills test that includes a pre-trip vehicle inspection, a basic vehicle control test, and an on-road driving exam.
In Indiana, you must be at least 18 years old to qualify for a Class A CDL license for intrastate driving (within Indiana only). However, to drive across state lines or handle hazardous materials, you must be at least 21 years old.
Specific endorsements aren't required for a Class A CDL, but they can enhance your license. Endorsements allow you to drive certain types of vehicles or carry specific types of cargo. Examples include a Tank Vehicle (N) endorsement, a Passenger (P) endorsement, or a Hazardous Materials (H) endorsement. Each requires additional testing.
The Class A CDL skills test in Indiana encompasses three main components: a pre-trip vehicle inspection to assess your ability to determine if your vehicle is safe to drive, a basic vehicle control test to evaluate your handling of the vehicle, and an on-road driving exam to test your practical driving skills in various traffic situations.
Yes, Class A CDL license holders in Indiana may face certain limitations. These can include restrictions based on the driver's medical condition, the type of vehicle used during the skills test, and the absence of certain endorsements. For instance, without a passenger or school bus endorsement, a driver cannot operate those specific vehicles.
Yes, it's possible to take the written Class A CDL test in languages other than English. The Indiana BMV offers the test in fourteen different languages. These include Spanish, Arabic, Chinese, French, and others. However, the Federal Motor Carrier Safety Administration requires a basic understanding of English to drive commercial vehicles.
Yes, in Indiana, you can request accommodations for the Class A CDL written test if you have a disability. The Bureau of Motor Vehicles (BMV) provides assistance to ensure the test is accessible to everyone. However, you must provide necessary documentation and notify the BMV in advance about your specific needs.
Yes, if you don't pass the Class A CDL written test in Indiana, you can retake it. However, you must wait until the next day to do so. If you fail the test three times, you will need to wait 2 weeks before your next attempt. Keep in mind each attempt comes with a fee.
