Steam Boilers, Engines, Nozzles and Turbines
Which is not correct statement about effect of sulphur in fuel?

It leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low
It helps in electrostatic precipitation of ash in flue gases
It has heating value
It erodes furnace walls

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Steam Boilers, Engines, Nozzles and Turbines
The indicated thermal efficiency is defined as the

Ratio of heat equivalent to indicated power to the energy supplied in steam
Product of thermal efficiency and Rankine efficiency
Ratio of brake power to the indicated power
Ratio of thermal efficiency to the Rankine efficiency

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