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Coke oven gas burns with a yellowish flame, because of the presence of __________________?
Related MCQs
With increase in moisture content of coal, its__________?
In general, the limit of inflammability/explosion limit of fuel gases is widened by the__________?
Traces of tar fog present in the coke oven gas is removed by__________?
C/H ratio is the maximum in case of__________?
The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal?
Largest constituent of blast furnace gas is__________?
A travelling grate stoker is meant for the efficient burning of __________ coal?
Lurgi coal gasifier is a pressurised __________ bed reactor?
The fuel ratio of a coal is__________?
Presence of free moisture in coal is most disadvantageous during__________?
Fuel for a nuclear reactor (thermal) is __________?
The calorific value of ‘LPG’ (50% propane + 50% butane) is about __________ kcal/Nm3?
With increase in the oxygen content of the coal, its __________ decreases?
Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher __________?
Nitrogen present in the flue gas is determined in the Orsat apparatus by absorbing it in__________?
Catalyst used in Fischer-Tropsch process is__________?
Dry air required to burn 1 kg of carbon completely may be around __________ kg?
‘Fat coals’ are those coals which have very high__________?
With increase in C/H ratio of a fuel, the amount of CO2 formed on its complete combustion__________?
Wood charcoal is obtained by the destructive distillation of wood. It is used in the production of activated carbon, which is not used for the__________?
Advantages of fluidised bed combustion are __________?
The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to__________?
Desirable “Micum Index” values of metallurgical coke are __________?
Which of the following fuels is the best for burning on chain grate stoker ?
“Overfire burning” in a furnace is a phenomenon characterised by the __________?
A coal gasifier operating at 20 atm. (e.g. Lurgi gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having __________?
For every 10% increase in the excess air; the fuel consumption increases by __________ percent?
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 ?
Pitch creosote mixture (PCM) as compared to furnace oil is a better fuel, because its __________?
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 ?
High excess air in combustion of fuels results in__________?
“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 __________?
L.D. converter gas (produced in steel plant) comprises mainly of __________?
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__________?
Coke oven gas burns with a yellowish flame, because of the presence of __________________?
A. CO2
B. CH4
C. H2
D. NH3
Correct Answer:
CH4
✔
Last Updated:
March 08, 2019