Fuels and Combustion Pure carbon is completely burnt in oxygen. The flue gas analysis is 70%CO₂, 20%CO and 10%O₂. The percent excess oxygen used is 12.5 0 20 10 12.5 0 20 10 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of pitch creosote mixture (PCM) i.e., C.T.F.-200 is about Same as that of coal middling 8800 kcal/m³ 25000 kcal/kg 8800 kcal/kg Same as that of coal middling 8800 kcal/m³ 25000 kcal/kg 8800 kcal/kg ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C. 1700-1800 1400-1500 400-500 900-1000 1700-1800 1400-1500 400-500 900-1000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High amount of sulphur and phosphorous in coke causes Decrease in its calorific value Increase in its strength None of these Brittleness of steel made by using it Decrease in its calorific value Increase in its strength None of these Brittleness of steel made by using it ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coking coals are invariably Lignites Semi-anthracites Bituminous coals Anthracites Lignites Semi-anthracites Bituminous coals Anthracites ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion C.V. (kcal/Nm³) of gaseous fuels __________ with increase in molecular weight. Increases May increase or decrease, depends on combustibles Decreases Remains constant Increases May increase or decrease, depends on combustibles Decreases Remains constant ANSWER DOWNLOAD EXAMIANS APP
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