Free Idaho CDL Double/Triple Trailers Practice Test 2022

Do you know how to pair double or triple trailers? If you are planning to take the Idaho CDL double/triple trailer endorsement test, make sure to know it! Our Idaho CDL practice test has the same questions as the real exam which is based on the Idaho 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 Idaho 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 ID commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
ID CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
What is the purpose of a front-brake limiting valve?
2.
Air brakes take longer to stop than hydraulic brakes because _______.
3.
When connecting converter dolly to the front trailer, support gear should be:
4.
How often should alcohol containers be checked during cold weather?
5.
On older vehicles, a low air pressure warning signal comes on at what psi?
6.
Brake drums should not have cracks longer than what length?
7.
Which of these statements about the handling of doubles and triples is true?
8.
Air tanks need to be drained ______.
9.
The most common type of foundation brake is?
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.
What does the air compressor governor control?
14.
When you make an emergency stop, you should _________.
15.
Which of the following factors explains why the total stopping distance for air brakes is longer than that for hydraulic brakes?
16.
If your vehicle has an alcohol evaporator, the evaporator's purpose is to _____.
17.
When the mechanical arm of a wig wag drops into your view that means the pressure in your system has dropped below what psi?
18.
You can test whether the trailer air system is charged by:
19.
The last step to uncouple a converter dolly is:
20.
Drivers of doubles and triples must take into greater account: