For marine-type shell-and-tube heat exchangers, what is the most common arrangement for baffles?

Correct Answer: Option A — Segmental

Segmental baffles are the industry standard for marine shell-and-tube exchangers. They consist of a circular plate with a segment removed, forcing fluid to flow back and forth across the tubes. This design is highly effective at promoting cross-flow turbulence while remaining mechanically simple and easy to manufacture.