In terms of the completeness of combustion, in viewing the condition of the stack, what would be the indication of the MOST complete combustion and HIGHEST boiler efficiency?
A
Light brown haze
B
White smoke
C
Clear stack
D
Black smoke
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Question 1 / 2066636ef128f7522a1c521a1f
Question 1 of 2066636ef128f7522a1c521a1f
In terms of the completeness of combustion, in viewing the condition of the stack, what would be the indication of the MOST complete combustion and HIGHEST boiler efficiency?
In terms of the completeness of combustion, in viewing the condition of the stack, what would be the indication of the MOST complete combustion and HIGHEST boiler efficiency?