Fuels and Combustion 'Fat' coal means a coal having Low ash content High volatile matter Non smoking tendency Low calorific value Low ash content High volatile matter Non smoking tendency Low calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal is done to reduce the Adhering impurities Both B and C Mineral matter Inherent impurities Adhering impurities Both B and C Mineral matter Inherent impurities ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of tar is about __________ Kcal/kg. 8800 12000 16000 5000 8800 12000 16000 5000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The fuel ratio of a coal is The ratio of its percentage of fixed carbon to that of volatile matter Neither A nor B Both A and B Helpful in estimation of its rank The ratio of its percentage of fixed carbon to that of volatile matter Neither A nor B Both A and B Helpful in estimation of its rank ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C. 900-1000 1400-1500 1700-1800 400-500 900-1000 1400-1500 1700-1800 400-500 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Commercial production of petrol from coal (as practised in a factory at Sasol in South Africa) is done by the __________ of coal. Carbonisation None of these Hydrogenation Gasification Carbonisation None of these Hydrogenation Gasification ANSWER DOWNLOAD EXAMIANS APP
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