Fuels and Combustion The function of secondary combustion air is to None of these Pneumatically convey the pulverised coal Completely burn the volatile matter Burn the lumpy coal None of these Pneumatically convey the pulverised coal Completely burn the volatile matter Burn the lumpy coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the 'carpet loss'. The carpet loss may be of the order of __________ cms. 20 to 40 3 to 4 1 to 2 5 to 15 20 to 40 3 to 4 1 to 2 5 to 15 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if It is stored in tall heaps Smaller fines are stored in large quantity It contains large amount of volatile matter All of these It is stored in tall heaps Smaller fines are stored in large quantity It contains large amount of volatile matter All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion C.V. (kcal/Nm³) of gaseous fuels __________ with increase in molecular weight. May increase or decrease, depends on combustibles Increases Decreases Remains constant May increase or decrease, depends on combustibles Increases Decreases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of excess of combustion air in the combustion of fuels results in Condensation of water vapour from the fuel gas Long flame None of these Heat losses Condensation of water vapour from the fuel gas Long flame None of these Heat losses ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Advantages of fluidised bed combustion are All of these High heat transfer rate Lower furnace operating temperature Reduced NOx formation in flue gas All of these High heat transfer rate Lower furnace operating temperature Reduced NOx formation in flue gas ANSWER DOWNLOAD EXAMIANS APP
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