Fuels and Combustion Preheating of __________ the flame temperature. Combustion air decreases Either the fuel or the air does not affect Either the fuel or the air or both, increases The gaseous fuel before combustion decreases Combustion air decreases Either the fuel or the air does not affect Either the fuel or the air or both, increases The gaseous fuel before combustion decreases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In flue gas analysis by Orsat's apparatus, oxygen is absorbed by Cuprous chloride Potassium hydroxide None of these Alkaline pyragllol solution Cuprous chloride Potassium hydroxide None of these Alkaline pyragllol solution ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fixed carbon in coal is defined as The one which is present in the residue after combustion Hundred minus the percentage of volatile matter, ash and moisture The total quantity of carbon present in the coal That present in volatile matters The one which is present in the residue after combustion Hundred minus the percentage of volatile matter, ash and moisture The total quantity of carbon present in the coal That present in volatile matters ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion By-products are __________ recovered in 'Beehive ovens'. Not at all Negligibly Fully Partially Not at all Negligibly Fully Partially ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Increases the loss of fine coal dust from the ovens when charging None of these Reduces the coking time Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Increases the loss of fine coal dust from the ovens when charging None of these Reduces the coking time Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The calorific value of natural gas is about __________ kcal/Nm³. 2500 35, 000 25, 000 10, 000 2500 35, 000 25, 000 10, 000 ANSWER DOWNLOAD EXAMIANS APP
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