Free Indiana CDL Combination Vehicles Practice Test 2022

You have to pass the Indiana CDL combination vehicles endorsement to get ready for propelling your career with your license. You are looking for a good Indiana CDL Practice Test source for your coming CDL test? You are in the right place. Our practice test is a great resource for beginners. The test is designed for you to have exactly the experience of the exam as you will be more familiar with both the test format and the subject. Our CDL practice test covers topics ranging from combination vehicle maintenance to safely driving a complex rig. Each question is based on the official Indiana CDL manual so you can be sure that the information in our test is accurate and relevant to your examination. In addition, each question has a detailed explanation so that it is very useful for you to learn from your mistakes. Preparing well before test day with questions and content that we cover. Start with our Free Indiana CDL Combination Vehicles Practice Test today and walk out with your endorsement!

Our CDL practice tests:
Based on 2022 IN commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
IN CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
To prevent moisture from entering the electrical cable when disconnected:
2.
Semi-trailers made before 1975 that are equipped with air brakes:
3.
The air lines on a combination vehicle are often colored to prevent them from mixing up. The emergency line is _____, the service line is _________.
4.
Hose couplers are also referred to as:
5.
The shut-off valves at the back of the last trailer should be:
6.
When connecting the glad hands, press the two seals with the couplers together at what degree to each other?
7.
In order to allow the trailer brakes to be applied more quickly, what is connected to the service air line?
8.
If the service line comes apart while you are driving a combination vehicle, but the emergency line stays together, what will happen right away?
9.
When driving a combination vehicle with multiple trailers or dollies, all air shut-off valves except the last one at the back must be:
10.
Your emergency air line breaks or gets pulled apart while you are driving. The loss of pressure will cause the:
11.
When uncoupling, the tractor should:
12.
The best and earliest way to recognize that your trailer has started to skid is:
13.
When coupling or uncoupling, all of these apply to the trailer except:
14.
A fifth wheel in proper position for coupling will have:
15.
You have a major leak in the service line, and you put on the brakes. Service air will escape and cause the:
16.
While driving, you should use the trailer hand valve when?
17.
Triples combinations have a rearward amplification of:
18.
You are coupling a tractor to the semitrailer; you have connected the airlines. Before backing under the trailer, you should:
19.
Why should you lock the tractor glad hands to each other (or dummy couplers) when you are not towing a trailer?
20.
While checking if the trailer is securely coupled to the tractor, the landing gears should be: