Fuels and Combustion With increase in C/H ratio of a fuel, the dew point of flue gases Increases Decreases Remains same May increase or decrease ; depends on the type of fuel Increases Decreases Remains same May increase or decrease ; depends on the type of fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature? Flame temperature achieved Speed of combustion of fuel Heat transfer rate to the stock in the furnace Calorific value of the fuel Flame temperature achieved Speed of combustion of fuel Heat transfer rate to the stock in the furnace Calorific value of the fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High temperature in gasification of coal favours High production of CO Both B and C Low production of CO₂ High production of CO₂ High production of CO Both B and C Low production of CO₂ High production of CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Naphthalene is used for making Insecticides (e.g. moth balls) Drug intermediates e.g. β-naphthol Unsaturated polyesters All of these Insecticides (e.g. moth balls) Drug intermediates e.g. β-naphthol Unsaturated polyesters All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value as determined by bomb calorimeter is the Net calorific value at constant volume Higher calorific value at constant volume Lower calorific value at constant pressure Gross calorific value at constant pressure Net calorific value at constant volume Higher calorific value at constant volume Lower calorific value at constant pressure Gross calorific value at constant pressure ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High sulphur content in a fuel __________ of the flue gases. Increases the dew point Reduces the combustion efficiency by limiting the permissible temperature reduction Decreases the dew point Both B & C Increases the dew point Reduces the combustion efficiency by limiting the permissible temperature reduction Decreases the dew point Both B & C ANSWER DOWNLOAD EXAMIANS APP
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