Fuels and Combustion High amount of sulphur and phosphorous in coke causes Decrease in its calorific value None of these Increase in its strength Brittleness of steel made by using it Decrease in its calorific value None of these Increase in its strength Brittleness of steel made by using it ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of a typical dry anthracite coal may be around __________ Kcal/kg. 8000 4000 1000 15000 8000 4000 1000 15000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its Yield of carbonised products Caking index Calorific value Friability & oxygen content Yield of carbonised products Caking index Calorific value Friability & oxygen content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature in air as compared to that in pure oxygen is Much lower Either lower or higher, depends on the type of fuel Same Much higher Much lower Either lower or higher, depends on the type of fuel Same Much higher ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases. All of these Methane Unsaturated hydrocarbons Hydrogen All of these Methane Unsaturated hydrocarbons Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature oxidation of coal during storage does not decrease its None of these Calorific value Caking power Oxygen content None of these Calorific value Caking power Oxygen content ANSWER DOWNLOAD EXAMIANS APP
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