Search
.Management Sciences
Category: Furnace Technology
An example of recuperative furnace is the__________________?
A. Soaking pit
B. Open hearth furnace
C. Coke ovens
D. None of these
In a furnace, the heat taken by the charge/stock and the heat lost to the furnace structure & flue gases depends on the__________________?
A. Rate of firing and emissivity of flame
B. Thermal conductivity of the charge & structural materials of furnace
C. Nature of process; whether batch, continuous or intermittent
D. All A., B. and C.
Which one shows the diagrammatic heat balance in a furnace ?
A. Sankey diagram
B. Cox chart
C. Ostwald chart
D. None of these
Which of the following furnaces will have maximum thermal efficiency ?
A. Soaking pits
B. Walking beam reheating furnace
C. Boiler furnace
D. Rotary kilns
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
Means for giving direction to the circulation of gases in furnaces are_____________________?
A. Fans
B. Arrangement of heating stock in the furnaces
C. Location of outlet ports and heating & combustion devices
D. All A., B. and C.
Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an__________________?
A. Blast furnace
B. Steam boiler
C. Salt bath furnace
D. Annealing furnace
Very high pressure boilers are usually _____________ boilers?
A. Fire tube
B. Water tube
C. Waste heat
D. Natural circulation
Recent Comments