Free Idaho CDL Double/Triple Trailers Practice Test 2023

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 2021 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
What is the function of a stop light switch?
When driving a truck with more than one trailer, which trailer should be first behind the truck?
The air compressor governor stops air from pumping when it reaches the "cut-out" level or around generally _________.
The most efficient way to drive down a long grade is to ________.
The converter dolly air tank drain valve on coupled double/triple trailers should be:
When you turn with the tractor/triple trailer combination, the wheels that off-track (cheat) the most are:
Automatic adjusters should ________.
You should check trailer height before connecting a converted dolly to a second or third trailer. The trailer height is right when:
When coupling or uncoupling, trailer or dolly wheel should always be:
A front brake limiting valve ______.
During a normal drive, the spring brakes are held back by _____.
The tractor protection valve should pop out when air pressure falls to:
Letting up on the brake pedal _______.
When increased application pressure to maintain the same speed becomes necessary, you should ______.
When you need to apply more pressure to help your brakes work normally effectively, this means that your brakes are fading. Which of the following can cause fading brakes?
Why should you never leave your vehicle unattended without applying the parking brakes?
When checking that air is flowing to all trailers, what is used to provide air to the supply lines?
Wedge brakes and disc brakes are ______ than s-cam brakes.
A safe speed on a curve for a smaller commercial vehicle:
If the malfunction lamp stays on after the bulb check, __________.