Fuels and Combustion Combustion of pulverised coal as compared to that of lump coal Provides a lower rate of heat release Can be done with less excess air Develops a non-luminous flame Develops a low temperature flame Provides a lower rate of heat release Can be done with less excess air Develops a non-luminous flame Develops a low temperature flame ANSWER DOWNLOAD EXAMIANS APP
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 Facilitates by-products recovery Gives larger yield of coke (around 85%) as compared to by-product ovens Produces coke with very poor strength Takes 2-3 days for coking of coal but requires no external fuel for heating Facilitates by-products recovery Gives larger yield of coke (around 85%) as compared to by-product ovens ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following constituents of coal is the most important in the production of coke? Ash Carbon Volatiles Moisture Ash Carbon Volatiles Moisture ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good metallurgical coke should have very low Porosity Hardness & strength Fusion point of its ash Sulphur & phosphorous content Porosity Hardness & strength Fusion point of its ash Sulphur & phosphorous content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature oxidation of coal during storage does not decrease its None of these Caking power Calorific value Oxygen content None of these Caking power Calorific value Oxygen content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Safe condition for storage of high V.M. bituminous coal is that Maximum 200 tons should be stored in a heap Height of the coal heap should be < 3 metres Neither A nor B Both A and B Maximum 200 tons should be stored in a heap Height of the coal heap should be < 3 metres Neither A nor B Both A and B ANSWER DOWNLOAD EXAMIANS APP
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