Which of the following methods applies to how a vacuum is created by a jet pump or an eductor?

Correct Answer: Option B — A rapidly moving stream of fluid passing through a nozzle.

Eductors and jet pumps operate on the Bernoulli principle. A high-velocity motive fluid passes through a converging nozzle, creating a low-pressure zone (vacuum) that entrains the suction fluid. This kinetic energy conversion is a standard, reliable method for bilge stripping and tank cleaning in marine auxiliary systems.