White smoke coming out of the chimney of a furnace indicates the use of Options: A . &nbspLow excess air B . &nbspVery high excess air C . &nbspGaseous fuel in the furnace D . &nbspLiquid fuel in the furnace

White smoke coming out of the chimney of a furnace indicates the use of

Question

White smoke coming out of the chimney of a furnace indicates the use of

Options:

A . Low excess air

B . Very high excess air

C . Gaseous fuel in the furnace

D . Liquid fuel in the furnace

Answer: Option B

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