Steam Plants (Boilers & Turbines) USCG Question #615 (Set 21)

Boilers equipped with steam atomizers can operate over a wide load range without cutting burners in and out because __________.

Official USCG Answer & Rule Citation

Correct Answer: Option D — steam velocity aids in the atomizing of fuel oil over a wide range of fuel pressures

Steam atomization utilizes the constant kinetic energy of expanding steam to shear fuel oil into fine droplets across a broad operational spectrum, eliminating the need to constantly cut burners in and out. This high turndown capability maintains stable combustion performance during fluctuating marine propulsion demands.

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