Fuels and Combustion The ratio of % total carbon obtained in the ultimate analysis of coke and % fixed carbon obtained in the proximate analysis is always 1 < 1 Unpredictable > 1 1 < 1 Unpredictable > 1 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal with high ash content Has low quantity of mineral matter Is harder and stronger Is not subjected to washing Has higher calorific value Has low quantity of mineral matter Is harder and stronger Is not subjected to washing Has higher calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher fuel combustion efficiency can not be achieved by Preheating of fuel gases & combustion air Reducing sulphur content in the fuel Adopting proper fuel firing technique & fuel preparation Supplying correct amount of combustion air Preheating of fuel gases & combustion air Reducing sulphur content in the fuel Adopting proper fuel firing technique & fuel preparation Supplying correct amount of combustion air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the __________ of the mass. Density None of these Porosity Electrical resistivity Density None of these Porosity Electrical resistivity ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In general, the limit of inflammability/explosion limit of fuel gases is widened by the Use of pure oxygen for combustion instead of air All of these Increase in gas pressure Increase in temperature (i.e. preheating) Use of pure oxygen for combustion instead of air All of these Increase in gas pressure Increase in temperature (i.e. preheating) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is coking? Neither A nor B Fussain Both A & B Vitrain Neither A nor B Fussain Both A & B Vitrain ANSWER DOWNLOAD EXAMIANS APP
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