31. Explosion limit of blast furnace gas is 37 to 71% gas in gas-air mixture. It means that the blast furnace gas will explode when burnt in a confined space, if its concentration in the gas-air mixture is __________ percent.
32. Most of the coking coals are
33. Coke oven gas compared to blast furnace gas is
34. High pressure coal gasification is employed in __________ process.
35. In low temperature carbonisation of coal as compared to high temperature carbonisation __________ produced is less.
36. Which adsorbant is used for removing sulphur compounds (S Q, H2S, RSH etc.) removal from coke oven gas in by-products recovery plant?
37. Number of macrocomponents present in coal according to Stopes are
38. Which of the following accentuates clinkering trouble on furnace grate burning coal?
39. High temperature in gasification of coal favours
40. Which of the following oil gasification processes is non-catalytic?
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