Akiln is used to calcine a limestone analyzing 52% caco s , 30 % mgco s , 5 % al2os, 4% ierts , 6% sio2 and 3 % moisture. coal is burned to supply the heat of calcinations. analysis of coal shows 13.8% vcm, 8.6 % ash, 3% moisture, negligible n and s with a calorific value of 32.95 mj/kg. analysis of the kiln gas shows 18.57 % co 2 , 1 % co, 0.22% h2, 8.39% o2 and 71.82% n2. 10. the amount (kg) of limestone/kg coal is about (a) 8.6 (b) 6.9 (c) 7.5 (d) 5.1 11. the amount lime fuel ratio is about (a) 4.4 (b) 3.9 (c) 6.5 (d) 7.1 12. wood is digested in the sulfite process in vessels constructed of (a) glass lined steel (b) rubber coated steel (c) stainless steel 304 (d) brick lined steel