Free Missouri CDL Double/Triple Trailers Practice Test 2023

Do you know how to pair double or triple trailers? If you are planning to take the Missouri CDL double/triple trailer endorsement test, make sure to know it! Our Missouri CDL Practice Test has the same questions as the real exam which is based on the Missouri CDL Book. 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 Missouri 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 MO commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
MO CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
What is proper braking technique for drivers travelling down a hill or any other downgrade?
When connecting converter dolly to the front trailer, support gear should be:
When testing the coupling of the double trailer, the landing gears of the rear trailer should be:
How often should alcohol containers be checked during cold weather?
To check if the converter dolly is securely coupled to the rear trailer you should:
After coupling, the air shut-off valves at the back of the first trailer should be:
Brake linings should not be _______.
You should check trailer height before connecting a converted dolly to a second or third trailer. The trailer height is right when:
The increased likelihood of doubles and triples turning over is called:
The most common type of foundation brake is?
A safety valve that releases air _______.
An air compressor can be cooled by _______.
When the safety valve releases air this indicates ___________.
Vehicles without automatic air tank drains need to be checked manually to remove ________?
In tractors and straight trucks spring brakes will come on fully when the air pressure drops to what range?
If you have manual transmission _________.
Why should air tanks be drained completely?
When inspecting doubles and triples shut-off valves, which of the following is true?
When uncoupling the rear trailer, which of these should be done first?
A visual inspection after coupling should show that: