🔍Oregon Pre-trip Inspection — Question 10 of 20
Which type of mechanism is used to engage and hold the kingpin on a tandem axle trailer?
Oregon CDL Pre-trip Inspection Test Info
Questions on Exam
Oral examination
Passing Score
Must demonstrate competency%
Time Limit
Skills test typically 30-60 minutes
Age Requirements
Intrastate: 18+ · Interstate: 21+
Oregon DMV
Official CDL PortalReady to pass your Oregon CDL Pre-trip Inspection exam?
Get full practice exams, study mode, and simulated tests with detailed explanations.