Free Arizona CDL Double/Triple Trailers Practice Test 2022

Do you know how to pair double or triple trailers? If you are planning to take the Arizona CDL double/triple trailer endorsement test, make sure to know it! Our Arizona CDL practice test pack has the same questions as the real exam which is based on the Arizona CDL manual. It covers most of the subject areas on the Double/Triple Trailers Test such as pulling double and triple trailers, the risk of rollover, managing space, and special considerations when hauling multiple trailers. In addition, each question has a detailed explanation that will help you understand the concept and answer future questions about it correctly. If you don't get the pass right away, you can take this CDL practice test an unlimited number of times to make sure you learn all the questions. Let’s try our Free Arizona CDL Double/Triple Trailers Practice Test today and pass your CDL endorsement exam! Good luck and keep driving safely!

Our CDL practice tests:
Based on 2022 AZ commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
AZ CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
What is the "cut-in" pressure for most air compressor governors?
2.
What is the purpose of a front-brake limiting valve?
3.
To test the tractor protection valve, the engine needs to be:
4.
An application pressure gauge shows how much air you are applying to the brakes. Increased application pressure to maintain the same speed indicates that __________.
5.
When coupling, correct trailer height should:
6.
How often should alcohol containers be checked during cold weather?
7.
Brake linings should not be _______.
8.
On older vehicles, a low air pressure warning signal comes on at what psi?
9.
If the rear trailer does not have spring brakes, disconnecting the emergency line after charging will:
10.
The tractor protection valve should pop out when air pressure falls to:
11.
Why should you check the brake adjustment often?
12.
When the safety valve releases air this indicates ___________.
13.
Where is compressed air stored?
14.
Wedge brakes and disc brakes are ______ than s-cam brakes.
15.
Typically, air storage tanks hold enough air to allow the brakes to be used _______ even if the compressor stops working.
16.
A safe speed on a curve for a smaller commercial vehicle:
17.
If the air compressor does not have its own oil supply, how is it lubricated?
18.
When performing the controlled braking method for an emergency stop, you are _________.
19.
Why do some air brake systems have an alcohol evaporator?
20.
The last step to uncouple a converter dolly is: