Free Hawaii CDL Double/Triple Trailers Practice Test 2023

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 Hawaii Double/Triple Trailers Practice Test has the same questions as the real exam which is based on the Hawaii 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 CDL practice test 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 practice test an unlimited number of times to make sure you learn all the questions. Let’s try our Free Hawaii CDL practice test today and pass your CDL endorsement exam! Good luck and keep driving safely!

Our CDL practice tests:
Based on 2021 HI commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
HI CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
What is a modulating control valve?
Which is true when checking air flow to all trailers?
What is the purpose of an antilock braking system (ABS)?
When checking the low pressure warning signal, it should turn on before the pressure drops below what psi?
An application pressure gauge shows how much air you are applying to the brakes. Increased application pressure to maintain the same speed indicates that __________.
The most efficient way to drive down a long grade is to ________.
In terms of stability, doubles and triples are:
When you turn with the tractor/triple trailer combination, the wheels that off-track (cheat) the most are:
The braking power of the spring brakes ______.
You should check trailer height before connecting a converted dolly to a second or third trailer. The trailer height is right when:
When uncoupling twin trailers you should park:
During a normal drive, the spring brakes are held back by _____.
Before you can supply air to the air tanks of a second trailer you need to:
When the safety valve releases air this indicates ___________.
When checking that air is flowing to all trailers, what is used to provide air to the supply lines?
Why should air tanks be drained completely?
It's important that a warning signal comes on before the air pressure in the tank falls below _______.
To position the converter dolly over short distances you can:
If the malfunction lamp stays on after the bulb check, __________.
Why should you not drive your vehicle if the air pressure does not build up quickly enough?