Fuels and Combustion Beehive coke oven Produces coke with very poor strength Takes 2-3 days for coking of coal but requires no external fuel for heating Gives larger yield of coke (around 85%) as compared to by-product ovens Facilitates by-products recovery Produces coke with very poor strength Takes 2-3 days for coking of coal but requires no external fuel for heating Gives larger yield of coke (around 85%) as compared to by-product ovens Facilitates by-products recovery ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal is done to reduce the Adhering impurities Mineral matter Inherent impurities Both B and C Adhering impurities Mineral matter Inherent impurities Both B and C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion C/H ratio is the maximum in case of Natural gas Furnace oil Naphtha Coal Natural gas Furnace oil Naphtha Coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C. 350 to 450 700 to 850 550 to 650 100 to 150 350 to 450 700 to 850 550 to 650 100 to 150 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which adsorbant is used for removing sulphur compounds (S Q, H₂S, RSH etc.) removal from coke oven gas in by-products recovery plant ? Diatomaceous earth Silica gel Basalt Bog iron (i.e., moist ferric hydroxide) Diatomaceous earth Silica gel Basalt Bog iron (i.e., moist ferric hydroxide) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the __________ of the mass. Electrical resistivity None of these Porosity Density Electrical resistivity None of these Porosity Density ANSWER DOWNLOAD EXAMIANS APP
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