Fuels and Combustion Which will have the least volatile matter and hence will be the most difficult to ignite? Coke Semi-bituminous coal Bituminous coal Aanthracite Coke Semi-bituminous coal Bituminous coal Aanthracite 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 Decreases with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Is more for low volatile coal compared to high volatile coal Does not vary with increase in surface area Decreases with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Is more for low volatile coal compared to high volatile coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The most matured coal out of the following is Bituminous Semi-anthracite Lignite Sub-bituminous Bituminous Semi-anthracite Lignite Sub-bituminous ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main drawback of supplying more excess air in the combustion of fuel is the Excessive power requirement of air blower High exit flue gas temperature from the furnace Intermittant and uncontrolled combustion of the fuel Enhanced sensible heat loss in the flue gas Excessive power requirement of air blower High exit flue gas temperature from the furnace Intermittant and uncontrolled combustion of the fuel Enhanced sensible heat loss in the flue gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main constituent of natural gas is C₃H₈ H₂ CH₄ (upto 90%) C₂H₆ C₃H₈ H₂ CH₄ (upto 90%) C₂H₆ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of force moisture in coal is most disadvantageous during its Washing Pulverisation Transportation and handling Storage Washing Pulverisation Transportation and handling Storage ANSWER DOWNLOAD EXAMIANS APP
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