General Subjects (Auxiliaries & Systems) USCG Question #2234 (Set 35)

A pneumatic pressure tank is installed in a sanitary system to __________.

Official USCG Answer & Rule Citation

Correct Answer: Option A — reduce excessive cycling of the sanitary pump

Pneumatic pressure tanks act as accumulators in sanitary systems. By maintaining a pressurized air cushion, the tank provides a buffer that satisfies minor system demands. This prevents the pump from starting and stopping (cycling) every time a faucet is opened, thereby reducing motor wear and electrical stress.

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