Free Pennsylvania CDL Combination Vehicles Practice Test 2022

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

Our CDL practice tests:
Based on 2022 PA commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
PA CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
Which of the following is part of the electrical and air lines coupling inspection?
2.
To prevent moisture from entering the electrical cable when disconnected:
3.
The air leakage rate for a combination vehicle (engine off, brakes on) should not be more than _____ psi per minute.
4.
The higher the center of gravity of your truck, the:
5.
You have coupled with a semitrailer, where should you put the iron trailer supports before driving away?
6.
The iron trailer supports are up and the trailer is resting on the tractor. Make sure:
7.
After you supply air to the trailer, make sure the air lines are not crossed and the trailer brakes are working. This is done by:
8.
Rearward amplification is a major cause of:
9.
Before coupling or uncoupling, the trailer wheels should always be:
10.
A major leak in the trailer emergency line will cause:
11.
When uncoupling, the tractor should:
12.
Converter dollies:
13.
If the spring brakes are not released when you pushed the trailer air supply valve you should:
14.
There are two things that a driver can do to prevent a rollover: They are: (1) go slow around turns, and (2):
15.
A fifth wheel in proper position for coupling will have:
16.
In normal driving, some drivers use the hand valve before the brake pedal to prevent a jack-knife. Which of the statements is true?
17.
To stop a trailer skid you should:
18.
You are about to back your tractor under a semitrailer. The trailer is at the right height when the:
19.
The "rearward amplification" value means:
20.
The fifth wheel locking lever is not locked after the jaws close around the kingpin. This means that: