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Which of the following is not a micro component present in coal ?
Related MCQs
Which of the following would require maximum amount of % excess air for complete combustion ?
Coking time in a commercial high temperature coal carbonisation plant is about __________ hours?
With increase in C/H ratio of a fuel, the dew point of flue gases__________?
High temperature carbonisation of coal takes place at __________ °C?
When the coal is heated in absence of air, it is called its __________?
Out of the following fuels, the difference between gross and net calorific value will be minimum in case of__________?
A good quality coal should have __________?
Shatter index of metallurgical coke on 2 inches and 0.5 inch screen should be respectively around __________ percent?
Which of the following is a measure of the agglutinating (i.e., binding) property of coal ?
By-products recovery process from coal carbonisation is termed as direct, indirect and semi direct process depending upon the method of recovery of__________?
Low temperature oxidation of coal is accelerated by the__________?
As the C/H ratio of the fuel increases, the amount of CO2 formed on combustion __________ for the same percentage of excess air?
Preheating of __________ the flame temperature?
With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases?
If CO2 is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as__________?
Presence of force moisture in coal is most disadvantageous during its __________?
High ash coals __________?
Moisture loss is determined by the __________?
Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis?
Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces __________?
Yield of blast furnace gas is about __________ Nm3 /ton of pig iron?
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?
Which of the following is not a micro component present in coal ?
A. Micrinite
B. Clarain
C. Fusinite
D. Liptinite
Correct Answer:
Clarain
✔
Last Updated:
March 08, 2019