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Blast furnace gas constitutes mainly of_________________?
Related MCQs
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 __________?
Washing of coal does not reduce its__________?
Preheating of coal charge for the coke ovens reduces the __________?
Which of the following gaseous fuels has the highest net calorific value (kcal/Nm3) ?
Width of the coke oven towards coke side is slightly more than that on pusher side to__________?
Natural draught produced by a chimney depends upon the __________?
Highly reactive coke have lower __________?
__________ prohibits the use of alcohols directly in petrol engines ?
Volumetric ratio of N2 to O2 in dry atmospheric air is __________?
Bituminous coal__________?
Washing of coal __________?
Coalification means the __________?
The ratio of % total carbon obtained in the ultimate analysis of coke and % fixed carbon obtained in the proximate analysis is always __________?
Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if __________?
If the specific heat of gaseous products of combustion of a fuel is high, the abiabatic flame temperature will be__________?
The main advantage of forced draft over natural draft is that__________?
Oxygen percentage (by weight) in atmospheric air is__________?
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?
Oxygen content in a flue gas was found to be 4%. It implies that excess air used for combustion was around __________ percent?
Which of the following is not a by-product fuel ?
Sulphur in metallurgical coal__________?
Fusion point of coal ash increases with increase in its __________ content?
Calorific value of coke oven gas is around __________ Kcal/Nm3?
Caking index of coal blend used for blast furnace coke making is about__________?
A coal with high ash content__________?
Which of the following is not a binder for coal briquetting ?
Coking time in beehive coke oven is about __________?
Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature ?
The heat of combustion of a fuel__________?
KOH solution used in Orsat apparatus absorbs__________?
In high temperature carbonisation of coal compared to low temperature carbonisation ?
Presence of free moisture in coal during its high temperature carbonisation __________?
The optimum percentage of excess air for combustion depends upon the __________ of the fuel?
Pick out the wrong statement ?
Pick out the wrong statement ?
Pick out the wrong statement ?
Pick out the correct statement ?
Pick out the wrong statement ?
Pick out the wrong statement ?
‘Wobbe index’ is a characteristic of__________?
Spontaneous combustion of coal on storage results due to__________?
White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is__________?
As the equilibrium moisture content of the coal increases, its__________?
Which of the following is not used as a binder in coal briquetting ?
Which of the following fuel gases has the highest calorific value ?
In Orsat’s apparatus, ammoniacal cuprous chloride is used for selectivity absorbing__________?
Which of the following is the most reactive (as regards the formation of CO + H2 from C + H2O) ?
Abel apparatus is used for those oils, whose flash points are __________°F?
Assam (India) coals suffers mainly from the disadvantage of high __________ content?
High temperature in gasification of coal favours__________?
During its calorific value determination by bomb calorimeter, coal is combusted by __________?
Blast furnace gas constitutes mainly of_________________?
A. N2 & CH4
B. N2 & H2
C. N2 & CO
D. CH4 & CO2
Correct Answer:
N2 & CO
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Last Updated:
March 08, 2019