USCG USCG Steam
Set 1 • Question #23 of 496
Launch Interactive Practice Room The total heating surface of any steam generating unit is comprised of which of the listed surfaces?
A
Those parts of a boiler which are exposed on one side to only the water being heated and on the other side to the combustion gases, such as the economizer surfaces.
B
Those parts of a boiler which are exposed on one side to only the steam being heated and on the other side to the combustion gases, such as the superheater surfaces.
C
Those parts of a boiler which are exposed on one side to the water or steam being heated, and on the other side to the combustion gases.
✓ Correct Answer
D
Those parts of a boiler which are exposed on one side to only the water being heated and on the other side being directly exposed to the furnace flame.
USCG NMC Regulatory Explanation
In USCG Steam Plants (Boilers & Turbines), regarding 'The total heating surface of any steam generating unit is comprised of which of the listed surfaces', the verified engineering fact is: 'Those parts of a boiler which are exposed on one side to the water or steam being heated, and on the other side to the combustion gases.'.
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