Fuels and Combustion Actual flame temperature is always lower than the adiabatic flame temperature, because there is No possibility of obtaining complete combustion at high temperature Neither A nor B Always loss of heat from the flame Both A & B No possibility of obtaining complete combustion at high temperature Neither A nor B Always loss of heat from the flame Both A & B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Height of coke oven is limited (say maximum upto 7 metres) mainly by the Problem of uniform heating along its height Buckling of ram of pusher car at the time of coke pushing Structural strength of silica bricks Problem in door cleaning Problem of uniform heating along its height Buckling of ram of pusher car at the time of coke pushing Structural strength of silica bricks Problem in door cleaning ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Function of secondary air in pulverised coal firing is to Dry the coal Transport the coal to the burner Ensure efficient burning of coal around the burner Reduce primary air requirement Dry the coal Transport the coal to the burner Ensure efficient burning of coal around the burner Reduce primary air requirement ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the least calorific value (kcal/Nm³) ? Sewage gas Coke oven gas Natural gas Blast furnace gas Sewage gas Coke oven gas Natural gas Blast furnace gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fuel gases has the highest calorific value ? Natural gas Liquefied petroleum gas (LPG) Coal bed methane (CBM) Sewage gas Natural gas Liquefied petroleum gas (LPG) Coal bed methane (CBM) Sewage gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Naphthalene recovered from coke oven gas is used For making electrodes As moth balls (insecticides) As a fuel in furnaces As moisture proof coating on fibres For making electrodes As moth balls (insecticides) As a fuel in furnaces As moisture proof coating on fibres ANSWER DOWNLOAD EXAMIANS APP
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