Fuels and Combustion Washing of coal is done to reduce the Inherent impurities Mineral matter Both B and C Adhering impurities Inherent impurities Mineral matter Both B and C Adhering impurities ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of gaseous fuels, deficiency of air Lengthens the flame Does not affect the flame length Increases the flame temperature Tends to shorten the flame Lengthens the flame Does not affect the flame length Increases the flame temperature Tends to shorten the flame ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For maximum discharge through a chimney, its height should be Equal to the height of the hot gas column producing draught More than 105.7 metres 200 meters Infinitely long Equal to the height of the hot gas column producing draught More than 105.7 metres 200 meters Infinitely long ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is called "blue gas"? Producer gas Coke oven gas Natural gas Water gas Producer gas Coke oven gas Natural gas Water gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis. 550 1150 750 950 550 1150 750 950 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is a rich fuel gas? Coal gas from underground gasification of coal Refinery gases Producer gas None of these Coal gas from underground gasification of coal Refinery gases Producer gas None of these ANSWER DOWNLOAD EXAMIANS APP
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