Free Delaware CDL Double/Triple Trailers Practice Test 2023

Do you know how to pair double or triple trailers? If you are planning to take the Delaware CDL double/triple trailer endorsement test, make sure to know it! Our Delaware CDL Practice test has the same questions as the real exam which is based on the Delaware 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 Delaware 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 DE commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
DE CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
The part of the combination vehicle most likely to turn over is the:
What is the "cut-in" pressure for most air compressor governors?
What is the purpose of an antilock braking system (ABS)?
Which is true when checking air flow to all trailers?
The converter dolly air tank drain valve on coupled double/triple trailers should be:
When connecting converter dolly to the front trailer, support gear should be:
On older vehicles, a low air pressure warning signal comes on at what psi?
When coupling or uncoupling, trailer or dolly wheel should always be:
You are driving a set of doubles and a set of trailer wheels goes into a skid. Which of these is most likely to occur?
Which of these statements about the handling of doubles and triples is true?
How do you check the low pressure warning signal?
Automatic air tanks _______.
During a normal drive, the spring brakes are held back by _____.
When inspecting the shut-off valves on doubles and triples, all of the following is true except:
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?
A safe speed on a curve for a smaller commercial vehicle:
Why should the air hoses connected to the brake chambers be checked?
It's important that a warning signal comes on before the air pressure in the tank falls below _______.
If the air compressor does not have its own oil supply, how is it lubricated?
To position the converter dolly over short distances you can: