Free Oregon CDL Combination Vehicles Practice Test 2023

You have to pass the Oregon CDL combination vehicles endorsement to get ready for propelling your career with your license. You are looking for a good Oregon CDL Practice Test source for your coming CDL test? You are in the right place. Our practice test is a great resource for beginners. The test is designed for you to have exactly the experience of the exam as you will be more familiar with both the test format and the subject. Our CDL practice test covers topics ranging from combination vehicle maintenance to safely driving a complex rig. Each question is based on the official Oregon CDL manual so you can be sure that the information in our test is accurate and relevant to your examination. In addition, each question has a detailed explanation so that it is very useful for you to learn from your mistakes. Preparing well before test day with questions and content that we cover. Start with our Free Oregon CDL Combination Vehicles Practice Test today and walk out with your endorsement!

Our CDL practice tests:
Based on 2021 OR commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
OR CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
Which of the following is part of the electrical and air lines coupling inspection?
Before you back under a trailer, make sure that:
Air brake equipped trailers made before 1975:
For proper hose coupling, lines are often color-coded. Service lines are usually:
Spring brakes are not required on trailers and dollies built before:
When traveling under 40 mph, how much distance should you leave, at minimum, from the car in front of you?
Off-tracking or cheating causes which of these to follow the wider path while making a turn?
Which part of the kingpin should the locking jaw close around?
You have pushed the trailer air supply valve. You should not back a tractor under a trailer until the whole air system is:
Tractor with a ______ trailer requires the shortest amount of stopping distance.
When pulling trailers:
When uncoupling, the tractor should:
How should you test the tractor-semitrailer connection for security?
When coupling or uncoupling, all of these apply to the trailer except:
Driving with an empty trailer:
You are about to back your tractor under a semitrailer. The trailer is at the right height when the:
After you have coupled the trailer you should raise the landing gear by using:
When backing a tractor under a trailer you should:
The safety latch for the fifth wheel locking lever must be _____ for a coupling to be complete.
When backing under the trailer, do all of the following except: