Free Alabama CDL Double/Triple Trailers Practice Test 2022

Do you know how to pair double or triple trailers? If you are planning to take the CDL double/triple trailer endorsement test, make sure to know it! Our Alabama CDL practice test has the same questions as the real exam which is based on the Alabama 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 Alabama CDL Double/Triple Trailers Practice Test today and pass your CDL exam! Good luck and keep driving safely!

Our CDL practice tests:
Based on 2022 AL commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
AL CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
An application pressure gauge shows how much air you are applying to the brakes. Increased application pressure to maintain the same speed indicates that __________.
2.
How can you be sure you supplied air to a second trailer?
3.
You are driving a 100-foot truck with double trailers at 30 mph. The road is dry, and visibility is good. You should keep at least ______ seconds of space ahead of you.
4.
When testing the coupling of the double trailer, the landing gears of the rear trailer should be:
5.
Air brakes take longer to stop than hydraulic brakes because _______.
6.
If the rear trailer does not have spring brakes, disconnecting the emergency line after charging will:
7.
The trailer air supply control should pop out when the air pressure falls into the pressure range of:
8.
The most common type of foundation brake is?
9.
Automatic air tanks _______.
10.
A danger of a malfunctioning tractor protection valve is:
11.
If the air compressor has its own oil supply you should do what before driving?
12.
When driving doubles or triples, for safer handling which trailer should be at the rear?
13.
Wedge brakes and disc brakes are ______ than s-cam brakes.
14.
Which of the following is the most common reason brakes fade?
15.
What does the air compressor governor control?
16.
To apply the parking brakes, you should _______.
17.
When performing the controlled braking method for an emergency stop, you are _________.
18.
Where are the brake drums located?
19.
When uncoupling the rear trailer, which of these should be done first?
20.
A converter dolly is used: