Fuels and Combustion Preheating of __________ the flame temperature. Either the fuel or the air or both, increases Combustion air decreases The gaseous fuel before combustion decreases Either the fuel or the air does not affect Either the fuel or the air or both, increases Combustion air decreases The gaseous fuel before combustion decreases Either the fuel or the air does not affect ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of phosphorous in metallurgical coal Is not undersirable Increases its caking power Badly affects the quality of steel Reduces its calorific value Is not undersirable Increases its caking power Badly affects the quality of steel Reduces its calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal is pulverised before burning in large capacity boiler furnaces mainly to Provide trouble free operation Enhance its calorific value Facilitate easy ash removal Ensure its complete combustion Provide trouble free operation Enhance its calorific value Facilitate easy ash removal Ensure its complete combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Caking index of a coal is a measure of its Porosity Agglutinating (binding) properties Abradability Reactivity Porosity Agglutinating (binding) properties Abradability Reactivity ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bomb calorimeter can be used to determine the __________ of the coal. Calorific value Sulphur content Neither A nor B Both A & B Calorific value Sulphur content Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace gas is a very poisonous gas because of its predominantly high __________ content. CH₄ H₂O CO CO₂ CH₄ H₂O CO CO₂ ANSWER DOWNLOAD EXAMIANS APP
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