Fuels and Combustion Washing of coal is done to reduce the Mineral matter Both B and C Adhering impurities Inherent impurities Mineral matter Both B and C Adhering impurities Inherent impurities ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For maximum discharge through a chimney, its height should be More than 105.7 metres Infinitely long Equal to the height of the hot gas column producing draught 200 meters More than 105.7 metres Infinitely long Equal to the height of the hot gas column producing draught 200 meters ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in moisture content of coal, its Calorific value increases sometimes None of these Bulk density always decreases Clinkering tendency during combustion increases Calorific value increases sometimes None of these Bulk density always decreases Clinkering tendency during combustion increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Most of the coking coals are Bituminous Anthracite Lignite None of these Bituminous Anthracite Lignite None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Prime coking coal is always blended with medium or non- coking coal before ear-bonisation Neither A nor B Both A & B Because, it alone produces unreactive coke To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls Neither A nor B Both A & B Because, it alone produces unreactive coke To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Air/gas ratio for complete combustion will be the highest for Carburetted water gas Gobar gas LPG Coke oven gas Carburetted water gas Gobar gas LPG Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
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