Desirable "Micum Index" values of metal-lurical coke are
Optimum preheating temperature for pitch creosote mixture (PCM) which is also termed as C.T.F-before atomisation through burners is
Benzol is used
Mott and Wheeler test is conducted on coke to find its
The pyragallol solution used in orsat apparatus can absorb
A sooty flame can be made non-luminous by
Bomb calorimeter is used to determine the (where, GCV - Gross Calorific Value. NCV - Net Calorific Value.)
Calorific value of bituminous coal may be around __________ Kcal/kg.
Largest constituent of coke oven gas is
Catalyst used in Fischer-Tropsch process is
High temperature carbonisation of coal produces
Fossil fuels mean
In high temperature carbonisation (as compared to low temperature carbonisation) of coal
Which of the following coke has the least percentage of ash ?
__________ process is meant for direct hydrogenation of coal to produce liquid fuel.
Fuel combustion is never cent per cent efficient due to
Pick out the wrong statement.
Compound coke ovens are those which can be heated by
The fuel ratio of a coal is
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
A coal that softens and fuses on heating is
Which of the following oil gasification processes is non-catalytic ?
Dust content in raw blast furnace gas is about __________ gm/Nm3 , hence it is cleaned to the dust level of about <mg /Nm3 before use.
Gobar gas is produced by the __________ of cown dung.
In Orsat's apparatus, ammoniacal cuprous chloride is used for selectivity absorbing
Fussain
Producer gas comprises mainly of
Which of the following coal gasification processes will produce gas having maximum methane content ?
Which of the following is the most poisonous gas ?
Sometimes water is sprayed during coal charging in the coke oven, which helps in
Anthracite coal
Soft coke is not
Fischer-Tropsch method aims at the
Producer gas containing least amount of tar is produced by the
A coal gasifier opearating atatm. (e.g. Lugri gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having
Main constituent of the gas produced from a gobar gas plant is
Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature ?
"Micum Index" of a coke is a measure of its
Assam coals suffers mainly from the disadvantage of high __________ content.
'Mixed gas' used in steel plants is a mixture of
Kopper-Totzek coal gasifier
Which of the following is not a manufactured fuel ?
In high temperature carbonisation (as compared to low temperature carbonisation) of coal, the
'Mixed gas' used in steel plants is a mixture of
The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal.
Calorific value of
Number of macrocomponents present in coal according to Stopes are
Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as
Blast furnace gas constitutes mainly of
To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in