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.
The trailer air supply control knob is:
2.
While driving behind another vehicle, under good conditions, you should allow at least one second between your vehicle and the vehicle ahead for each ____ feet of your vehicle length.
3.
For proper hose coupling, lines are often color-coded. Service lines are usually:
4.
Spring brakes are not required on trailers and dollies built before:
5.
When uncoupling, make sure that the parking area:
6.
The trailer service brakes should be tested with the hand control, and controlled during normal operation by:
7.
Which part of the kingpin should the locking jaw close around?
8.
You have pushed the trailer air supply valve. You should not back a tractor under a trailer until the whole air system is:
9.
In order to allow the trailer brakes to be applied more quickly, what is connected to the service air line?
10.
If the service line comes apart while you are driving a combination vehicle, but the emergency line stays together, what will happen right away?
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.
There are two things that a driver can do to prevent a rollover. They are: (1) go slow around turns, and (2):
13.
Which of these statements is true?
14.
The locking jaws should be around:
15.
To help release the fifth wheel locking lever:
16.
A driver crosses the air lines when hooking up to an old trailer. What will happen?
17.
You supply air to the trailer tanks by:
18.
Driving with an empty trailer:
19.
You are coupling a tractor to the semitrailer; you have connected the airlines. Before backing under the trailer, you should:
20.
Glad hands are usually connecting which of these?