A. Coke oven heating chamber
B. Open hearth furnace
C. Both A. and B.
D. Neither A. nor B.
A. Movement of gases
B. Measurement of flue gas volume
C. Temperature control
D. Pressure adjustment
A. Low reactivity of carbonised residue containing high proportion of iron & sulphur
B. Low forced draft & fuel bed temperature
C. Thick firebed and preheated primary air
D. All A., B. and C.
A. Ostwald chart
B. Cox chart
C. Sankey diagram
D. None of these
A. Feedwater
B. Combustion air
C. Pulverised coal
D. Furnace oil
A. 15
B. 40
C. 70
D. 85
A. < 2
B. < 5
C. < 8
D. < 10