Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke Causes brittleness in steel Decreases the hardness of coke Decreases the abrasion resistance of coke None of these Causes brittleness in steel Decreases the hardness of coke Decreases the abrasion resistance of coke None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of pulverised coal in boiler furnace provides Smokeless burning High calorific value Less erosion on furnace walls Better combustion Smokeless burning High calorific value Less erosion on furnace walls Better combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Largest constituent of blast furnace gas is N₂ CO H₂ CO₂ N₂ CO H₂ CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Cannel coal Is non-coking Has a high volatile matter content and burns with a luminous smoky flame Is a non-banded coal which can be ignited easily with a match stick or candle flame, hence is so named All of these Is non-coking Has a high volatile matter content and burns with a luminous smoky flame Is a non-banded coal which can be ignited easily with a match stick or candle flame, hence is so named All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good metallurgical coke Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should have high porosity Should be brittle Should have low fusion point of its ash Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should have high porosity Should be brittle Should have low fusion point of its ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always Unpredicatable 1 > 1 Unpredicatable 1 > 1 ANSWER DOWNLOAD EXAMIANS APP
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