Fuels and Combustion With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases. Methane Unsaturated hydrocarbons All of these Hydrogen Methane Unsaturated hydrocarbons All of these Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of __________ the flame temperature. Combustion air decreases Either the fuel or the air does not affect The gaseous fuel before combustion decreases Either the fuel or the air or both, increases Combustion air decreases Either the fuel or the air does not affect The gaseous fuel before combustion decreases Either the fuel or the air or both, increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Stack (chimney) height in a big thermal power plant is dictated by the Pollution control aspect Draught to be created Limitation of constructional facilities None of these Pollution control aspect Draught to be created Limitation of constructional facilities None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Dry air required to burn 1 kg of carbon completely may be around __________ kg. 38 11 20 2 38 11 20 2 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis. 750 1150 950 550 750 1150 950 550 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Quantity of coke oven gas produced by high temperature carbonisation of one ton of dry coal may be around __________ Nm³. 30 300 3000 30, 000 30 300 3000 30, 000 ANSWER DOWNLOAD EXAMIANS APP
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