Fuels and Combustion As the C/H ratio of the fuel increases, the amount of CO₂ formed on combustion __________ for the same percentage of excess air. Decreases Increases May increase or decrease depending on the type of fuel Remains same Decreases Increases May increase or decrease depending on the type of fuel Remains same ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of a gaseous fuel results in increased Flame length Flame temperature Ignition temperature Quantity of flue gas Flame length Flame temperature Ignition temperature Quantity of flue gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Actual flame temperature is always lower than the adiabatic flame temperature, because there is Both A & B Always loss of heat from the flame Neither A nor B No possibility of obtaining complete combustion at high temperature Both A & B Always loss of heat from the flame Neither A nor B No possibility of obtaining complete combustion at high temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Optimum preheating temperature for pitch creosote mixture (PCM) which is also termed as C.T.F-200, before atomisation through burners is 200 °F 200 °K 200 °R 200 °C 200 °F 200 °K 200 °R 200 °C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke Decreases the hardness of coke None of these Causes brittleness in steel Decreases the abrasion resistance of coke Decreases the hardness of coke None of these Causes brittleness in steel Decreases the abrasion resistance of coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a product of tar distillation? Phenol & naphthalene Benzol & pitch Anthracene & creosote None of these Phenol & naphthalene Benzol & pitch Anthracene & creosote None of these ANSWER DOWNLOAD EXAMIANS APP
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