Fuels and Combustion Main use of hard coke produced by high temperature carbonisation is in the Cupola in foundaries Iron blast furnace Sinter making Domestic ovens Cupola in foundaries Iron blast furnace Sinter making Domestic ovens ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent. 10 & 3 15 & 8 10 & 20 3 & 10 10 & 3 15 & 8 10 & 20 3 & 10 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Too much of excess air in combustion results in high Percentage of oxygen in flue gases Fuel consumption for the same heat load Stack gas temperature All of these Percentage of oxygen in flue gases Fuel consumption for the same heat load Stack gas temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will Not change Decrease Increase Increase or decrease depending on the fuel type Not change Decrease Increase Increase or decrease depending on the fuel type ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Rate of low temperature oxidation of coal due to bad storage conditions Decreases with increase in surface area Is more for low volatile coal compared to high volatile coal Is accelerated by storage in large heaps with small surface to volume ratio Does not vary with increase in surface area Decreases with increase in surface area Is more for low volatile coal compared to high volatile coal Is accelerated by storage in large heaps with small surface to volume ratio Does not vary with increase in surface area ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to None of these Make it look attractive Avoid radiation heat loss Minimise its corrosion None of these Make it look attractive Avoid radiation heat loss Minimise its corrosion ANSWER DOWNLOAD EXAMIANS APP
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