Furnace Technology In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of Combustion of coal by supplying it around the burner Drying of coal Preheating the primary air Transportation of coal Combustion of coal by supplying it around the burner Drying of coal Preheating the primary air Transportation of coal ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Waste heat from the outgoing flue gases in a thermal power plant is recovered by a/an Economiser Steam superheater All of these Air preheater Economiser Steam superheater All of these Air preheater ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Example of an indirectly heated furnace is Neither A nor B Muffle furnace Both A and B Hood annealing furnace Neither A nor B Muffle furnace Both A and B Hood annealing furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators as compared to recuperators for the same duty Store smaller quantity of waste heat Involve higher initial cost All of these Are lighter & compact Store smaller quantity of waste heat Involve higher initial cost All of these Are lighter & compact ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of Beryllium Zircon powder Graphite powder Thoria Beryllium Zircon powder Graphite powder Thoria ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic recuperators (made of SiC) is economical, only when used for preheating combustion air above __________ °C. 650 850 1000 250 650 850 1000 250 ANSWER DOWNLOAD EXAMIANS APP
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