Fuels and Combustion When steam is passed over coal resulting in the endothermic reaction represent by, C + H₂O = CO + H₂, it is called the __________ of coal. Oxidation Coalification Carbonisation Gasification Oxidation Coalification Carbonisation Gasification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of coal on grate, clinker formation is increased by the Low fusion point of ash (< 1100° C) All of these Use of thick fire bed Use of preheated primary air Low fusion point of ash (< 1100° C) All of these Use of thick fire bed Use of preheated primary air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Dust content in raw blast furnace gas is about __________ gm/Nm³ , hence it is cleaned to the dust level of about < 10 mg /Nm³ before use. 43832 15-30 70-100 150-200 43832 15-30 70-100 150-200 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gross heating value of coal is __________ the net heating value. Higher than None of these Lower than Same as Higher than None of these Lower than Same as ANSWER DOWNLOAD EXAMIANS APP
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 During its calorific value determination by bomb calorimeter, coal is combusted by Oxygen enriched air None of these Air Oxygen Oxygen enriched air None of these Air Oxygen ANSWER DOWNLOAD EXAMIANS APP
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