71. Main constituent of the gas produced from a gobar gas plant is
72. Which is the heaviest fuel gas out of the following?
73. Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher
74. By-products recovery process from coal carbonisation is termed as direct, indirect and semi direct process depending upon the method of recovery of
75. In low temperature carbonisation of coal, the
76. Which of the following is not a by-product recovered in a high temperature coal carbonisation plant?
77. Softening temperature of coal ash is a measure of the __________ of coal.
78. Lurgi coal gasifier is a pressurised __________ bed reactor.
79. Which of the following fuels is the best for burning on chain grate stoker?
80. In Orsat's apparatus, ammoniacal cuprous chloride is used for selectivity absorbing
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