USCG USCG Steam
Set 10 • Question #35 of 496
Launch Interactive Practice Room Bi-color water level indicators, connected directly to the boiler drum, operate on the principle of __________.
A
different refractive properties of steam and water
✓ Correct Answer
B
special insoluble indicating fluids
C
different chemical properties of steam and water
D
different densities which result from the comparison of the varying steam pressure in the drum
USCG NMC Regulatory Explanation
In USCG Steam Plants (Boilers & Turbines), regarding 'Bi-color water level indicators, connected directly to the boiler drum, operate on the principle of', the verified engineering fact is: 'different refractive properties of steam and water'.
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