An example of recuperative furnace is the__________________?
A. Soaking pit
B. Open hearth furnace
C. Coke ovens
D. None of these
Furnace Technology
Which is a regenerative furnace ?
Which is a regenerative furnace ?
A. Coke oven heating chamber
B. Open hearth furnace
C. Both A. and B.
D. Neither A. nor B.
In order to maintain an oxidising atmosphere in a furnace, it should have__________________?
In order to maintain an oxidising atmosphere in a furnace, it should have__________________?
A. More of excess air
B. Less of excess air
C. More of CO in flue gas
D. More of CO2 in flue gas
Heat transfer rate to the stock/charge in the furnace does not depend upon the________________?
Heat transfer rate to the stock/charge in the furnace does not depend upon the________________?
A. Emissivity of the refractory walls
B. Size of the furnace
C. Use of waste heat recovery equipments
D. Thickness of the stock
The main function of a muffle in the muffle furnace is to__________________?
The main function of a muffle in the muffle furnace is to__________________?
A. Protect the charge from the effects of the products of combustion
B. Smooth out temperature inequalities on the combustion side of the muffle wall
C. Both A. & B.
D. Neither A. nor B.
In a furnace operation, which is not preheated ?
In a furnace operation, which is not preheated ?
A. Solid fuels
B. Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.)
C. Both A. and B.
D. Neither A. nor B.
Fuel used in B.F. stove is______________________?
Fuel used in B.F. stove is______________________?
A. Pulverised coal
B. Furnace oil
C. Blast furnace gas/mixed gas
D. Coke oven gas
Reverberatory furnace is used for_____________________?
Reverberatory furnace is used for_____________________?
A. Roasting/reduction of ores
B. Annealing steel coil
C. Heating air
D. Steel melting
Which furnace employs an I.D. fan for the removal of flue gases from the furnace ?
Which furnace employs an I.D. fan for the removal of flue gases from the furnace ?
A. Coke oven
B. Blast furnace stoves
C. Beehive coke oven
D. High pressure boiler
Cement Kiln is a___________________?
Cement Kiln is a___________________?
A. Rotary Kiln
B. Tunnel Kiln
C. Natural draft furnace
D. Batch furnace