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. Gasification None of these Hydrogenation Carbonisation Gasification None of these Hydrogenation Carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the least calorific value (kcal/Nm³) ? Blast furnace gas Coke oven gas Natural gas Sewage gas Blast furnace gas Coke oven gas Natural gas Sewage gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The calorific value of producer gas is around __________ kcal/Nm³ 500 1300 4500 9000 500 1300 4500 9000 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 Helpful in estimation of its rank Both A and B Neither A nor B The ratio of its percentage of fixed carbon to that of volatile matter Helpful in estimation of its rank Both A and B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fuel consumption in coke making can be reduced by Stamped charging of coal Dry quenching of coke All of these Preheating, blending and de-ashing the coal Stamped charging of coal Dry quenching of coke All of these Preheating, blending and de-ashing the coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A particular coal is said to be free burning when it Shows little or no fusing action Gives smokeless burning Burns completely None of these Shows little or no fusing action Gives smokeless burning Burns completely None of these ANSWER DOWNLOAD EXAMIANS APP
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