Furnace Technology

A. Ingots
B. Coils
C. Sheets
D. Slabs

A. Calcination of limestone & dolomite
B. Cement manufacture
C. Both A. and B.
D. Neither A. nor B.

A. 2000
B. 3000
C. 4500
D. 6000

A. Same
B. Less
C. More
D. Either more or less; depends on the flue gas density

A. Waste heat recovery from flue gas
B. Minimising heat losses from furnace walls
C. Maintaining proper draught
D. All A., B. and C.

A. Fusion of coal ash & clinker formation
B. C. V. of producer gas
C. Temperature of producer gas
D. Tar content in producer gas

A. Ostwald chart
B. Cox chart
C. Sankey diagram
D. None of these

A. Accelerating the rate of scaling
B. Causing metal embrittlement
C. Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at
high temperature
D. All A., B. and C.

A. Coke ovens
B. Open hearth furnace
C. Both A. & B.
D. Neither A. nor B.

A. Smelting
B. Calcining
C. Roasting
D. All A., B. and C.