Fuels and Combustion Deficiency of combustion air during combustion of a gaseous fuel Lengthens the flame Shortens the flame Both A & B Causes heat loss of fuel by its partial combustion Lengthens the flame Shortens the flame Both A & B Causes heat loss of fuel by its partial combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of excess of combustion air in the combustion of fuels results in None of these Condensation of water vapour from the fuel gas Long flame Heat losses None of these Condensation of water vapour from the fuel gas Long flame Heat losses ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Size of blast furnace grade coke is __________ mm. 0-15 15-25 25-80 >100 0-15 15-25 25-80 >100 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature carbonisation of coal produces No by-products Soft coke Very low calorific value coke oven gas Metallurgical coke No by-products Soft coke Very low calorific value coke oven gas Metallurgical coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good metallurgical coke Should have low fusion point of its ash Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should have high porosity Should be brittle Should have low fusion point of its ash Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should have high porosity Should be brittle ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest gross calorific value? Oil refinery gas Blast furnace gas Carburetted water gas Coke oven gas Oil refinery gas Blast furnace gas Carburetted water gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS