Fuels and Combustion Low temperature oxidation of stored coal results in the All of these Decrease in its carbon & hydrogen content Decrease in its caking power & calorific value Increase in its oxygen content All of these Decrease in its carbon & hydrogen content Decrease in its caking power & calorific value Increase in its oxygen content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Method of maintaining fires in furnace during standby periods without undue consumption of fuel is called Under pressurising Banking Back draughting None of these Under pressurising Banking Back draughting None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion As time passes, the calorific value of stored coal Decreases May increase or decrease (depends on the method of storage) Remains unaltered Increases Decreases May increase or decrease (depends on the method of storage) Remains unaltered Increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The gas which contributes maximum to the heating value of natural gas is CO H₂ CH₄ CO₂ CO H₂ CH₄ CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Wood charcoal is obtained by the destructive distillation of wood. It is used in the production of activated carbon, which is not used for the Electrode manufacture Decolourisation of sugar Solvent recovery from air and gases Absorption of gases and vapor Electrode manufacture Decolourisation of sugar Solvent recovery from air and gases Absorption of gases and vapor ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Hard coke is manufactured from Semi-anthracite Anthracite Bituminous coal Lignite Semi-anthracite Anthracite Bituminous coal Lignite ANSWER DOWNLOAD EXAMIANS APP
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