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 the function of a stop light switch?
To test the tractor protection valve, the engine needs to be:
When testing the coupling of the double trailer, the landing gears of the rear trailer should be:
An air brake is made up of which of the following braking systems?
On older vehicles, a low air pressure warning signal comes on at what psi?
Which of these statements about the handling of doubles and triples is true?
If the rear trailer does not have spring brakes, disconnecting the emergency line after charging will:
The trailer air supply control should pop out when the air pressure falls into the pressure range of:
How do you check the low pressure warning signal?
A safety valve that releases air _______.
When inspecting the shut-off valves on doubles and triples, all of the following is true except:
Why does a heavily-loaded vehicle take longer to stop than a lightly-loaded vehicle?
Where is compressed air stored?
When testing the trailer emergency brakes, charge the system, pull out the trailer air supply control, and:
What does the air compressor governor control?
If the air compressor does not have its own oil supply, how is it lubricated?
To apply the parking brakes, you should _______.
Water and oil _______.
When performing the controlled braking method for an emergency stop, you are _________.
The pintle hook should never be unlocked when: