A. Temperature of flue gas
B. Thermal conductivity of stock
C. Thickness of heating stock
D. All A., B. and C.
0
Scaling of furnace stock is reduced by _______________ in flue gas?
0
An improved and fuel efficient version of the pusher type reheating furnace is the ______________ furnace?
A. CO
B. H2
C. High CO/CO2
D. All A., B. & C.
0
Forced recirculation of furnace gases is practised_______________?
A. Walking beam
B. Shaft
C. Tunnel
D. Rotary hearth
0
In a furnace, the heat taken by the charge/stock and the heat lost to the furnace structure & flue gases depends on the__________________?
A. To increase heat transfer by convection
B. To ensure uniform temperature
C. In furnaces, operating below 750°C
D. All A., B. and C.
0
Flue gas outlet temperature from the chimney of any furnace should be ideally about ______________ °C?
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.
0
Which of the following is a batch furnace ?
A. 50
B. 100
C. 150
D. 250
0
The thermal efficiency of an air/fuel gas preheating recuperator may be as high as _____________ percent?
A. Cupola
B. Reheating furnace
C. Glass tank furnace
D. None of these
