Free Oklahoma CDL Double/Triple Trailers Practice Test 2022

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 Oklahoma CDL Practice Test has the same questions as the real exam which is based on the Oklahoma 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 Oklahoma 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 2022 OK commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
OK CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
The part of the combination vehicle most likely to turn over is the:
2.
What is proper braking technique for drivers travelling down a hill or any other downgrade?
3.
To test the tractor protection valve, the engine needs to be:
4.
The converter dolly air tank drain valve on coupled double/triple trailers should be:
5.
After coupling, the air shut-off valves at the back of the first trailer should be:
6.
You want to hook your combination to a second trailer that has no spring brakes. To do this without wheel chocks you should:
7.
When coupling or uncoupling, trailer or dolly wheel should always be:
8.
Brake drums should not have cracks longer than what length?
9.
A front brake limiting valve ______.
10.
When uncoupling twin trailers you should park:
11.
When driving doubles or triples in adverse or slippery weather conditions, all of the following are true except:
12.
Automatic air tanks _______.
13.
Pushing the brake pedal down when the spring brakes are on could _________.
14.
When increased application pressure to maintain the same speed becomes necessary, you should ______.
15.
Which of the following is the most common reason brakes fade?
16.
In tractors and straight trucks spring brakes will come on fully when the air pressure drops to what range?
17.
When stab braking if you re-apply the brakes before the wheels start rolling, __________.
18.
To apply the parking brakes, you should _______.
19.
If your vehicle has an alcohol evaporator, the evaporator's purpose is to _____.
20.
What affects the stopping distance for air brakes?