Free Idaho CDL Combination Vehicles Practice Test 2023

You have to pass the Idaho CDL combination vehicles endorsement to get ready for propelling your career with your license. You are looking for good source material for your coming CDL test? You are in the right place. Our Idaho CDL 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. They cover topics ranging from combination vehicle maintenance to safely driving a complex rig. Each question is based on the official Idaho CDL manual so you can be sure that the information in our test is accurate and relevant to your examination. In addition, each CDL practice test 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 Idaho CDL Combination Vehicles Practice Test today and walk out with your endorsement!

Our CDL practice tests:
Based on 2021 ID commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
ID CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
Which of the following is part of the electrical and air lines coupling inspection?
To prevent moisture from entering the electrical cable when disconnected:
One good way to prevent rollover is:
You have coupled with a semitrailer, where should you put the iron trailer supports before driving away?
The shut-off valves at the back of the last trailer should be:
When you are uncoupling a loaded trailer, you should lower the landing gear until it:
After you lock the kingpin into the fifth wheel, you should check the connection by:
When you get ready to back under a semitrailer you should line up:
Rearward amplification is a major cause of:
When pulling trailers:
Your emergency air line breaks or gets pulled apart while you are driving. The loss of pressure will cause the:
When should you use the hand valve to park a combination vehicle?
To stop other drivers from passing you on the right when turning wide:
The locking jaws should be around:
To help release the fifth wheel locking lever:
Crack-the-whip effect occurs when:
After you have coupled the trailer you should raise the landing gear by using:
All of these are part of the final 3 steps of uncoupling the trailer except:
While checking if the trailer is securely coupled to the tractor, the landing gears should be:
The front trailer supports are up and the trailer is resting on the tractor. Make sure: