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Dry air required to burn 1 kg of carbon completely may be around ______________ kg?
Related MCQs
‘Fat coals’ are those coals which have very high__________?
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Main use of hard coke produced by high temperature carbonisation is in the __________ ?
Percentage of carbon monoxide in blast furnace gas may be around __________ ?
Which is the most matured coal ?
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Incomplete combustion of a fuel is characterised by the high __________ in the flue gas?
Very __________ coals are completely devoid of cokability i.e., it is non-coking ?
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“Micum Index” of a coke is a measure of its__________?
__________ has the widest inflammability limit (explosion limit) of all the gases?
A good metallurgical coke__________?
The cuprous chloride used in orsat apparatus can absorb__________?
A gaseous fuel in order to develop luminosity on burning, must contain __________?
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Highly caking coals__________?
The hottest part of the flame lies in its __________ zone?
The average molecular weight of a flue gas having the composition by volume as CO2 = 25%, O2 = 25%, N2 = 50% will be__________?
Optimum preheating temperature for pitch creosote mixture (PCM) which is also termed as C.T.F-200, before atomisation through burners is__________?
Gross calorific value will be equal to the net calorific value for __________?
Which of the following is not endothermic ?
Cannel coal and boghead coal are the examples of __________?
Main constituent of the gas produced from a gobar gas plant is__________?
Caking index of the coal blend used for the manufacture of metallurgical coke should be around__________?
‘Wind loss’ resulting from unscientific storage of coal may be the order of about __________ percent?
Laboratory gas is obtained by the cracking of__________?
Coal is pulverised before burning in large capacity boiler furnaces mainly to__________
Mott and Wheeler test is conducted on coke to find its __________?
A coal having high volatile matter content will __________?
Combustion reaction of fuels is a/an __________ reaction?
A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be__________?
Bomb calorimeter can be used to determine the __________ of the coal?
Largest constituent of coke oven gas is__________?
The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen?
The main drawback of supplying more excess air in the combustion of fuel is the__________?
Bunsen burner is an example of a/an __________ burner?
Bulk density of pulverised coal may be about __________ kg/m3?
Which of the following would require least amount of secondary air for combustion ?
Calorific value of blast furnace gas is around __________ KCal/Nm3?
Nitrogen in coal__________?
The gas which contributes maximum to the heating value of natural gas is __________?
To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in__________?
Washing of coal decreases its__________?
Dry air required to burn 1 kg of carbon completely may be around ______________ kg?
A. 11
B. 2
C. 20
D. 38
Correct Answer:
11
✔
Last Updated:
March 08, 2019