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Yield of blast furnace gas is about _______________ Nm3 /ton of pig iron?
Related MCQs
Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of__________?
Which of the following is a rich fuel gas ?
With increases in carbonisation temperature__________?
64-132) rank coal (ASTM) means a coal with 64%__________?
A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the__________?
Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant ?
Main constituent of natural gas is __________?
Froth floatation is used for__________?
Anthracite can be used for__________?
Of the total tar present in raw coke oven gas, the tar recovered in primary cooler is about __________ percent?
Which of the following accounts for maximum energy loss in a boiler ?
Naphthalene is used for making__________?
Dry air requirement for burning 1 Nm3 of CO to CO2 may be around __________ Nm3 ?
In flue gas analysis by Orsat’s apparatus, oxygen is absorbed by__________?
Blast furnace coke is made from coal by__________?
For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will__________?
Low temperature carbonisation of coal produces__________?
Heat penetration rate in narrow coke ovens in high temperature carbonisation of coal is around __________ cm/hr?
A coal having higher volatile matter content will necessarily have lower__________?
Function of secondary air in pulverised coal firing is to__________?
The advantage of firing pulverised coal in the furnace lies in the fact, that it__________?
Calorific value of both the solid & liquid fuels can be determined by using __________ calorimeter?
The most matured coal out of the following is__________?
(64-132) rank coal (ASTM) means a coal with 64%__________?
Ignition temperature decreases progressively from anthracite to lignite, because__________?
For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3), while the C.V. is same on weight basis (i.e., kcal/kg) ?
A good metallurgical coke should have very low__________?
Washing of coal__________?
Insitu theory and drift theory are related to the__________?
Degree of carbonisation of coal during coke making can be roughly judged by the __________ of the coke produced?
Fuel combustion is never cent per cent efficient due to__________?
A coal with high __________ content, would ignite most easily?
Which of the following fuel gases will require maximum amount of air for combustion of 1 Nm3 gas ?
High ash containing coke__________?
Low temperature oxidation of coal resulting from bad storage conditions does not decrease its__________?
Bright coal__________?
A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the ‘carpet loss’. The carpet loss may be of the order of __________ cms?
A fuel with high heat release rate will__________?
The pyrogallol solution used in Orsat apparatus can absorb__________?
In low temperature carbonisation of coal as compared to high temperature carbonisation __________ produced is less?
Percentage of nitrogen in blast furnace gas may be around__________?
During coking of coal, the ash content (percentage)__________?
Stack (chimney) height in a big thermal power plant is dictated by the__________?
The lowest temperature, at which a solid fuel produces enough vapors to support continuous combustion, is called ?
Ash content in the coke produced from a coking coal having 20% ash may be around __________ percent?
The calorific value is the highest out of the following for__________?
A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon __________?
Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an __________ bed gasifier?
Ionisation potential applied across the electrodes of electrostatic tar precipitator is around__________?
Coal tar (produced by high temperature carbonisation) is the main source of__________?
Hard coke is manufactured from__________?
Yield of blast furnace gas is about _______________ Nm3 /ton of pig iron?
A. 300
B. 2000
C. 5000
D. 10000
Correct Answer:
2000
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Last Updated:
March 08, 2019