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 purpose of an antilock braking system (ABS)?
When coupling, correct trailer height should:
On large buses low pressure warning devices usually signal at ______.
A low pressure warning signal could be __________.
The increased likelihood of doubles and triples turning over is called:
The air compressor should pump air starting at what psi?
Which of these statements about quick steering movements and doubles/triples is true?
The service brake system ________.
The trailer air supply control should pop out when the air pressure falls into the pressure range of:
When driving doubles or triples in adverse or slippery weather conditions, all of the following are true except:
You are visually checking the coupling of a converter dolly to the rear trailer. How much space should be between the upper and lower fifth wheel?
An air compressor can be cooled by _______.
Before you can supply air to the air tanks of a second trailer you need to:
If you have manual transmission _________.
Why do some air brake systems have an alcohol evaporator?
Why should you never push the brake pedal down when the spring brakes are on?
When performing the controlled braking method for an emergency stop, you are _________.
In dual-air systems the pressure should build to _______.
Where are the brake drums located?
When uncoupling the rear trailer, which of these should be done first?