Chemical Engineering MCQs

A. Type of fuels viz. solid, liquid or gaseous
B. Flue gas temperature
C. Emissivity of refractory walls
D. Initial temperature of the charged stock

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)

A. Calcination kiln
B. Blast furnace
C. Soaking pit
D. L.d. converter

A. Blast furnace
B. Steam boiler
C. Salt bath furnace
D. Annealing furnace

A. Graphite powder
B. Thoria
C. Zircon powder
D. Beryllium

A. Blast furnace stove
B. Sintering furnace
C. High pressure boiler
D. None of these

A. Air pressure
B. Fuel gas pressure
C. Speed of i.d. fan
D. Damper

A. Open hearth furnace
B. Muffle furnace
C. Soaking pit
D. Reheating furnace

A. Using oxygen enriched combustion air
B. Preheating the combustion air
C. Reducing the heat loss through furnace openings & doors
D. All a., b. and c.

A. Reduces the flue gas temperature and makes the furnace atmosphere oxidising
B. Increases the load on the induced draft fan
C. Reduces the furnace draught
D. All a., b. and c.