Fuels and Combustion Beehive coke oven 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 Produces coke with very poor strength Facilitates by-products recovery 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 Produces coke with very poor strength Facilitates by-products recovery ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main constituent of natural gas is C₃H₈ C₂H₆ H₂ CH₄ (upto 90%) C₃H₈ C₂H₆ H₂ CH₄ (upto 90%) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bright coal Contains more than 90% durain Contains more than 90% fussain Contains mainly vitrain & clarain and is generally coking Is non-coking Contains more than 90% durain Contains more than 90% fussain Contains mainly vitrain & clarain and is generally coking Is non-coking ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Initial pressure of oxygen introduced into the 'bomb' of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around __________ atm. 25-30 3-5 95-100 60-65 25-30 3-5 95-100 60-65 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal is pulverised before burning in large capacity boiler furnaces mainly to Provide trouble free operation Facilitate easy ash removal Ensure its complete combustion Enhance its calorific value Provide trouble free operation Facilitate easy ash removal Ensure its complete combustion Enhance its calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Shatter index of the coke is a measure of its None of these Bulk density Reactivity Strength None of these Bulk density Reactivity Strength ANSWER DOWNLOAD EXAMIANS APP
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