Fuels and Combustion Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air. 35 5 20 10 35 5 20 10 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of gobar gas (containing CH₄ = 60% , H₂ = 10% ; CO₂ = 30%) may be about __________ Kcal/Nm³. 5400 10200 1800 3200 5400 10200 1800 3200 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion 'Fuel' can be defined as a substance which produces heat by Nuclear fusion Nuclear fission Combustion All of these Nuclear fusion Nuclear fission Combustion All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Naphthalene is removed from coke oven gas by Scrubbing with wash oil (a petroleum product) Absorbing in vetro-coke solution Adsorbing on bog iron bed None of these Scrubbing with wash oil (a petroleum product) Absorbing in vetro-coke solution Adsorbing on bog iron bed None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal with high __________ content, would ignite most easily. Oxygen Volatile matter Ash Fixed carbon Oxygen Volatile matter Ash Fixed carbon ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For maximum discharge through a chimney, its height should be 200 meters Equal to the height of the hot gas column producing draught More than 105.7 metres Infinitely long 200 meters Equal to the height of the hot gas column producing draught More than 105.7 metres Infinitely long ANSWER DOWNLOAD EXAMIANS APP
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