- (A) Using oxygen enriched combustion air
- (B) Preheating the combustion air
- (C) Reducing the heat loss through furnace openings & doors
- (D) All
Chemical Engineering Mcqs
- (A) Open hearth furnace
- (B) Muffle furnace
- (C) Soaking pit
- (D) Reheating furnace
- (A) Air pressure
- (B) Fuel gas pressure
- (C) Speed of I.
- (D) fan
- (A) Blast furnace stove
- (B) Sintering furnace
- (C) High pressure boiler
- (D) None of these
- (A) Graphite powder
- (B) Thoria
- (C) Zircon powder
- (D) Beryllium
- (A) Blast furnace
- (B) Steam boiler
- (C) Salt bath furnace
- (D) Annealing furnace
- (A) Calcination kiln
- (B) Blast furnace
- (C) Soaking pit
- (D) L.
- (A) Air supplied and furnace temperature
- (B) Burner design (thoroughness of mixing versus stratification)
- (C) Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction)
- (D) All
- (A) 350
- (B) 750
- (C) 1050
- (D) 1250
- (A) Use of non-preheated combustion air
- (B) Use of pulverised solid fuels
- (C) Imperfect mixing of fuel & air and infiltration of air
- (D) Use of excessive positive draft in the furnace
