In the pressure-volume diagram, shown in the illustration, the volume line is divided into 16 units indicating __________. Illustration MO-0035

Correct Answer: Option C — a 16 to 1 compression ratio

Dividing the volume line into 16 proportional units on a P-V diagram visually represents the ratio of total cylinder volume at bottom dead center to clearance volume at top dead center, demonstrating a 16 to 1 compression ratio standard in marine diesel applications.