Fuels and Combustion For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³ ), while the C.V. is same on weight basis (i.e., kcal/kg) ? Propane and acetylene F. gas and coke oven gas Sewage gas and gobar gas Propane and LPG Propane and acetylene F. gas and coke oven gas Sewage gas and gobar gas Propane and LPG ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main function of primary air in pulverised coal fired burner is to Dry and transport the coal Burn CO to CO₂ Preheat the tertiary air used for complete combustion of CO to CO₂ Have proper combustion by supplying it around the burner Dry and transport the coal Burn CO to CO₂ Preheat the tertiary air used for complete combustion of CO to CO₂ Have proper combustion by supplying it around the burner ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is used for making the explosive 'TNT'? Cerosote Benzol Pyridine Toluene Cerosote Benzol Pyridine Toluene ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the Incomplete combustion of coal Chances of clinker formation Risk of explosion Requirement of large volume combustion chamber Incomplete combustion of coal Chances of clinker formation Risk of explosion Requirement of large volume combustion chamber ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The most matured coal out of the following is Lignite Semi-anthracite Bituminous Sub-bituminous Lignite Semi-anthracite Bituminous Sub-bituminous ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having high volatile matter content will Burn with a small non-smoky flame None of these Give less yield of tar and gas on carbonisation Have a very high calorific value Burn with a small non-smoky flame None of these Give less yield of tar and gas on carbonisation Have a very high calorific value ANSWER DOWNLOAD EXAMIANS APP
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