Irregular feeding or surging of the feed water supply to a flash evaporator may be attributed to __________.
Official USCG Answer & Rule Citation
Correct Answer: Option B — a dirty strainer in the salt water feed pump suction line
A dirty suction strainer creates flow resistance and pressure drops at the pump inlet. This causes cavitation or intermittent flow delivery, leading to irregular feeding or surging of the feed water supply, which disrupts the steady-state pressure and temperature balance required for consistent flash evaporation.
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