Free Idaho CDL Combination Vehicles Practice Test 2022

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 2022 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
1.
Semi-trailers made before 1975 that are equipped with air brakes:
2.
You should not back a tractor under a trailer until the air system is:
3.
When you open the emergency shut-off valve at the back of the last trailer after supplying air to trailer(s):
4.
Hose couplers are also referred to as:
5.
When traveling under 40 mph, how much distance should you leave, at minimum, from the car in front of you?
6.
You have pushed the trailer air supply valve. You should not back a tractor under a trailer until the whole air system is:
7.
Tractor with a ______ trailer requires the shortest amount of stopping distance.
8.
When backing under the trailer, air lines:
9.
When coupling, trailer height should:
10.
Before coupling or uncoupling, the trailer wheels should always be:
11.
You are driving a combination vehicle when the trailer breaks away, pulling apart both air lines. You expect the trailer brakes to come on and:
12.
When unlocking the fifth wheel in Step 6, all of the following apply except:
13.
The tractor should be positioned to back under the trailer:
14.
If the wheels of the trailer lock up and the trailer swings around, it could cause a:
15.
If the spring brakes are not released when you pushed the trailer air supply valve you should:
16.
To stop a trailer skid you should:
17.
A fifth wheel in proper position for coupling will have:
18.
When backing under the trailer, do all of the following except:
19.
You are coupling a tractor to the semitrailer; you have connected the airlines. Before backing under the trailer, you should:
20.
Where should the tractor be when you inspect the landing gear after uncoupling the trailer?