Fuels and Combustion Low temperature oxidation of stored coal results in the Decrease in its carbon & hydrogen content All of these Decrease in its caking power & calorific value Increase in its oxygen content Decrease in its carbon & hydrogen content All of these Decrease in its caking power & calorific value Increase in its oxygen content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Compound coke ovens are those which can be heated by Lean gas (e.g., B.F. gas) Rich gas (e.g., coke oven gas) Both steam and electrical power Both B and C Lean gas (e.g., B.F. gas) Rich gas (e.g., coke oven gas) Both steam and electrical power Both B and C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Combustion of pulverised fuel In a metallurgical furnace does not contaminate the product in the furnace by ash from fuel All of these Suppresses the discharge of fine dust and grit into atmosphere Requires larger combustion chamber than rich gaseous fuel In a metallurgical furnace does not contaminate the product in the furnace by ash from fuel All of these Suppresses the discharge of fine dust and grit into atmosphere Requires larger combustion chamber than rich gaseous fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of nitrogen in combustion air does not reduce the Flame temperature Flue gas temperature Amount of heat liberated Any of the above Flame temperature Flue gas temperature Amount of heat liberated Any of the above ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In general, the limit of inflammability/explosion limit of fuel gases is widened by the All of these Use of pure oxygen for combustion instead of air Increase in gas pressure Increase in temperature (i.e. preheating) All of these Use of pure oxygen for combustion instead of air Increase in gas pressure Increase in temperature (i.e. preheating) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Caking index of a coal is a measure of its Reactivity Agglutinating (binding) properties Porosity Abradability Reactivity Agglutinating (binding) properties Porosity Abradability ANSWER DOWNLOAD EXAMIANS APP
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