Fuels and Combustion Carbon Content by weight in air dried wood may be about __________ percent. 10 25 50 80 10 25 50 80 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because It reduces its calorific value tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot There are chances of explosion during preheating It reduces its flame temperature tremendously It reduces its calorific value tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot There are chances of explosion during preheating It reduces its flame temperature tremendously ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The optimum percentage of excess air for combustion depends upon the __________ of the fuel. Type (solid, liquid or gaseous) Sulphur content Ignition temperature Calorific value Type (solid, liquid or gaseous) Sulphur content Ignition temperature Calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High temperature in gasification of coal favours Low production of CO₂ High production of CO Both B and C High production of CO₂ Low production of CO₂ High production of CO Both B and C High production of CO₂ ANSWER DOWNLOAD EXAMIANS APP
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 Propane and LPG Sewage gas and gobar gas Propane and acetylene F. gas and coke oven gas Propane and LPG Sewage gas and gobar gas 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
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