With regard to the flow patterns associated with plate type heat exchangers, which flow pattern is able to achieve counter-flow on opposite sides of each heat exchange plate?

Correct Answer: Option C — The flow pattern where each fluid makes a single pass through the heat exchanger.

Single-pass plate heat exchangers allow the hot and cold fluids to enter at opposite ends and flow in opposite directions across the entire plate surface. This arrangement maximizes the log mean temperature difference, providing the most efficient heat transfer performance compared to multi-pass configurations which introduce flow complexity.