Free Mississippi CDL Combination Vehicles Practice Test 2022

You have to pass the Mississippi CDL combination vehicles endorsement to get ready for propelling your career with your license. You are looking for a good Mississippi 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 Mississippi 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 Mississippi CDL Combination Vehicles Practice Test today and walk out with your endorsement!

Our CDL practice tests:
Based on 2022 MS commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
MS CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
The air leakage rate for a combination vehicle (engine off, brakes on) should not be more than _____ psi per minute.
2.
How much space should be allowed between the upper and lower fifth wheel after coupling?
3.
If your trailer goes into a skid, you should do all of the following except:
4.
When connecting the glad hands, press the two seals with the couplers together at what degree to each other?
5.
To help prevent rollover, keep the center of gravity of the load as low as possible, and:
6.
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:
7.
A major leak in the trailer emergency line will cause:
8.
The trailer hand valve should be used:
9.
When unlocking the fifth wheel in Step 6, all of the following apply except:
10.
If the wheels of the trailer lock up and the trailer swings around, it could cause a:
11.
There are two things that a driver can do to prevent a rollover: They are: (1) go slow around turns, and (2):
12.
Crack-the-whip effect occurs when:
13.
The "rearward amplification" value means:
14.
Like tractor air tanks, trailer air tanks should be kept free of dirt and oil by:
15.
You have a major leak in the service line, and you put on the brakes. Service air will escape and cause the:
16.
Your emergency air line breaks or gets pulled apart while you are driving. The loss of pressure will cause the:
17.
The fifth wheel locking lever is not locked after the jaws close around the kingpin. This means that:
18.
Triples combinations have a rearward amplification of:
19.
Why should you lock the tractor glad hands to each other (or dummy couplers) when you are not towing a trailer?
20.
In case of landing gear failure while pulling out from under it, you should: