EXAMIANS
Gobar gas is produced by the __________ of 'gobar' (cow dung).
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A coal gasifier opearating at 20 atm. (e.g. Lugri gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having
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Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if
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Presence of phosphorous in metallurgical coal
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Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the
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The calorific value of producer gas is around __________ kcal/Nm³
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Calorific value of tar is about __________ Kcal/kg.
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Temperature of coke oven gas just before entering into saturator (for recovery of NH₃) is about __________ °C.
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Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of
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A good quality coal should have
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