Free CDL Quiz

Baffled tanks reduce which type of surge?

a.Side-to-side surge
b.Forward-and-back surge
c.Both side-to-side and forward-and-back surge
d.Neither type of surge

Explanation

Baffles reduce forward-and-back surge by breaking the tank into sections. However, because the baffles have holes that allow liquid to pass through, they do not prevent side-to-side surge. Drivers must still be cautious on curves and turns.

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About the CDL Exam

The CDL (Commercial Driver License) exam tests your knowledge of commercial driving rules, safety procedures, and vehicle operation. You must score 80% or higher to pass the written knowledge test. The exam covers general knowledge, air brakes, combination vehicles, and various endorsements.

This question is from the Tank Endorsement Test #1 section. Practice with more questions from this category to build confidence before taking the official DMV test.

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