USCG USCG Steam
Set 12 • Question #115 of 496
Launch Interactive Practice Room Which of the following boiler stack (smoke color) conditions indicates efficient combustion?
A
Black haze
B
White haze
C
Brown haze
✓ Correct Answer
D
Yellow haze
USCG NMC Regulatory Explanation
In USCG Steam Plants (Boilers & Turbines), regarding 'Which of the following boiler stack (smoke color) conditions indicates efficient combustion', the verified engineering fact is: 'Brown haze'.
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