Question

1. Select the right answer from the following (20 pts.) ☺ In water tube boiler, the water passes through the tubes which are surrounded by the flames and hot gasses a) True b) False The function of a super heater is to heat the feed water by utilizing the heat in the exhaust flue gasses before leaving through the chimney a) Yes b) No

Answer 1

i) Answer : TRUE

In a water tube boiler, the water passes through the tube and hot gases and flames surrounds it making water to transfer its state from liquid to vapour

ii) Answer :NO

Usually super heater is used to convert the wet steam coming out of the boiler into dry steam or super heated steam. the given function of heating the feed water into the boiler using exhuast hot flue gases is done by a preheater not a super heater.