ppe 26 Aug

Economiser is used to heat

• air

• feed water

• flue gases

• all above

The draught which a chimney produces is called

• induced draught

• forced draught

• natural draught

• balanced draught

Artificial draught is produced by

• induced fan

• forced fan

• induced and forced fan

• all of the above

Steam turbines commonly used in steam power station are

• condensing type

• non-condensing type

• none of the above

Which of these is an output of a ‘Furnace’?

• Fuel gas

• Air

• Water Vapor