Fuels and Combustion Coke having higher porosity has Lower bulk density Lower strength Higher reactivity All of these Lower bulk density Lower strength Higher reactivity All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Rate of low temperature oxidation of coal due to bad storage conditions Does not vary 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 Decreases with increase in surface area Does not vary 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 Decreases with increase in surface area ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal All of these Reduces its sulphur and ash content Improves its coking properties Controls its ash fusibility and increases its calorific value All of these Reduces its sulphur and ash content Improves its coking properties Controls its ash fusibility and increases its calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main constituent of natural gas is C₂H₆ CH₄ (upto 90%) C₃H₈ H₂ C₂H₆ CH₄ (upto 90%) C₃H₈ H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion When the coal is heated in absence of air, it is called its Carbonisation Deoxidation Coalification Gasification Carbonisation Deoxidation Coalification Gasification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pulverised coal used in boiler firing need not have High bulk density Less moisture content Lower ash content High fusion point of its ash High bulk density Less moisture content Lower ash content High fusion point of its ash ANSWER DOWNLOAD EXAMIANS APP
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