Steam Plants (Boilers & Turbines) USCG Question #85 (Set 3)

To prevent pulsations from developing in the boiler feed water lines, the discharge side of a reciprocating feed pump is equipped with a/an __________.

Official USCG Answer & Rule Citation

Correct Answer: Option B — air chamber

Reciprocating positive displacement feed pumps create pulsating flow. An air or gas-filled accumulator chamber installed on the discharge side cushions these pressure fluctuations through compression and expansion, dampening hydraulic shock throughout the feed water system in accordance with 46 CFR Subchapter F engineering standards.

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