When joining the female coupling of the fire hose to the male outlet of the hydrant, you should make sure that the __________.

Correct Answer: Option B — female coupling has a gasket

A resilient rubber gasket inside the female swivel coupling is essential to establish a watertight seal against the male hydrant outlet. Without this gasket, high-pressure water escapes across the connection threads, drastically reducing firefighting nozzle pressure and system effectiveness.