Fuels and Combustion Coke oven gas is a better fuel than blast furnace gas, because of its higher Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) Heat release rate (thus requiring smaller combustion chamber) Adiabatic flame temperature All of these Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) Heat release rate (thus requiring smaller combustion chamber) Adiabatic flame temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the 'carpet loss'. The carpet loss may be of the order of __________ cms. 5 to 15 1 to 2 3 to 4 20 to 40 5 to 15 1 to 2 3 to 4 20 to 40 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher efficiency in the combustion of solid fuel can not be achieved by Adopting efficient-fuel firing technique & equipment Supplying correct quantity of combustion air Keeping the flue gas exhaust temperature very high Proper fuel preparation Adopting efficient-fuel firing technique & equipment Supplying correct quantity of combustion air Keeping the flue gas exhaust temperature very high Proper fuel preparation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is called "blue gas"? Coke oven gas Natural gas Producer gas Water gas Coke oven gas Natural gas Producer gas Water gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal gasifier opearating at 20 atm. (e.g. Lugri gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having Lower carbon dioxide content Higher carbon monoxide content Higher methane content and thus higher calorific value None of these Lower carbon dioxide content Higher carbon monoxide content Higher methane content and thus higher calorific value None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The calorific value of natural gas is about __________ kcal/Nm³. 35, 000 25, 000 2500 10, 000 35, 000 25, 000 2500 10, 000 ANSWER DOWNLOAD EXAMIANS APP
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