Fuels and Combustion Short/intense flame is produced during combustion of gaseous fuel by using Very little excess air Low amount/current of combustion air High amount/current of combustion air Preheated secondary air Very little excess air Low amount/current of combustion air High amount/current of combustion air Preheated secondary air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Spontaneous combustion of coal on storage results due to Storage in large heaps with small surface to volume ratio All of these Low temperature oxidation Inadequate ventilation Storage in large heaps with small surface to volume ratio All of these Low temperature oxidation Inadequate ventilation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following gaseous fuels has the lowest calorific value? Gobar gas Converter gas Blast furnace gas Refinery gas Gobar gas Converter gas Blast furnace gas Refinery gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal is done to reduce the Adhering impurities Mineral matter Inherent impurities Both B and C Adhering impurities Mineral matter Inherent impurities Both B and C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Out of the following fuels, the difference between gross and net calorific value will be minimum in case of Natural gas Water gas Blast furnace gas Coke oven gas Natural gas Water gas Blast furnace gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its Calorific value Caking index Yield of carbonised products Friability & oxygen content Calorific value Caking index Yield of carbonised products Friability & oxygen content ANSWER DOWNLOAD EXAMIANS APP
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