Fuels and Combustion Highly caking coals May damage the coke oven walls during carbonisation Produce weak coke Both B and C Produce strong coke May damage the coke oven walls during carbonisation Produce weak coke Both B and C Produce strong coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the oxygen content of the coal, its __________ decreases. Caking power Neither A nor B Both A & B Calorific value Caking power Neither A nor B Both A & B Calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion As the equilibrium moisture content of the coal increases, its Bulk density decreases Swelling number increases Calorific value increases Swelling number decreases Bulk density decreases Swelling number increases Calorific value increases Swelling number decreases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ignition temperature of a fuel in air is __________ that in pure oxygen. Either more or less; depends on the type of fuel More than Equal to Less than Either more or less; depends on the type of fuel More than Equal to Less than ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good quality coal should have Low fusion point of ash High sulphur High ash content None of these Low fusion point of ash High sulphur High ash content None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion C.V. (kcal/Nm³) of gaseous fuels __________ with increase in molecular weight. Increases Decreases May increase or decrease, depends on combustibles Remains constant Increases Decreases May increase or decrease, depends on combustibles Remains constant ANSWER DOWNLOAD EXAMIANS APP
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