Question 1
An air supply control lever should be in its "normal" position when you are:
Correct Answer:
Pulling a trailer.
Question 2
Older trailers are not equipped with spring brakes. This means that if the air supply for a vehicle's air braking system leaks away:
Correct Answer:
The trailer will not have brakes.
Question 3
In a double or triple combination:
Correct Answer:
The heaviest trailer should be positioned directly behind the cab.
Question 4
To prevent a rollover, cargo should be:
Correct Answer:
Spread out on a trailer.
Question 5
The trailer hand valve should:
Correct Answer:
Be used only to test the trailer brakes.
Question 1 of 20
Exam overview

About this Exam

Prepare with the Oregon CDL Combination Test 2 practice quiz. This question bank includes 20 questions covering trailer, vehicle, braking, valve, and anti-lock. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Oregon CDL Combination Test 2

This practice set contains 20 questions from the matching question bank and focuses on trailer, vehicle, braking, valve, and anti-lock. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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