61. A travelling grate stoker is meant for the efficient burning of __________ coal.
62. A coal having higher volatile matter content will necessarily have lower
63. The gasification reaction represented by, C + H2O = CO + H2, is
64. The lowest temperature, at which a solid fuel produces enough vapors to support continuous combustion, is called
65. Atomising steam to fuel oil ratio in a burner should be around
66. Volumetric ratio of N2 to O2 in dry atmospheric air is
67. Combustion of pulverised coal compared to the lumpy coal
68. Use of pulverised coal in boiler furnace provides
69. Which of the following is the maximum coal producing state in India?
70. The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C.
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