Which effect occurs due to the interaction between a ship and the bank, causing the vessel to be pulled towards the bank?

• A. Bank Cushion
• B. Bank Effect
• C. Venturi Effect
• D. Passing Shift Effect

Answer: (B)

The Bank Effect refers to the phenomenon that occurs when a ship navigates close to a bank or shoreline, leading to the vessel being pulled towards that bank due to the interaction between the hull of the ship and the water's surface. When the ship moves through the water, it displaces the water, creating a pressure differential. This differential pulls the vessel closer to the bank, particularly when the ship's speed increases.

In contrast, the other concepts mentioned have distinct definitions. The Bank Cushion refers to the slight increase in water pressure that can occur in a confined waterway, while the Venturi Effect pertains to the decrease in fluid pressure that occurs when a fluid flows through a constricted section of pipe. The Passing Shift Effect is related to the influence of nearby vessels. Understanding these effects is crucial for safe navigation, especially in narrow channels or when maneuvering near shorelines.