Q341
Open questionFunction of secondary air in pulverised coal firing is to
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Chemical Engineering · all questionsFuels And Combustion
Fuels And Combustion
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Q342
Open question'Mixed gas' used in steel plants is a mixture of
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Q343
Open questionThe calorific value of a gas of composition CO2 = 20%, H2 = 50%, CH4 = 30%, is y. If the composition of gas is changed to H2 = 50%, CH4 = 30%, CO2 = 10%, N2 = 10%, then the calorific value will be
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Q344
Open questionBlast furnace coke is made from coal by
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Q345
Open questionBlast furnace gas constitutes mainly of
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Q346
Open questionThe advantage of firing pulverised coal in the furnace lies in the fact, that it
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Q347
Open questionNaphthalene is used for making
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Q348
Open questionWhich of the following is not increased by using preheated combustion air in place of ordinary air at room temperature?
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Q349
Open questionCoal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis.
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Q350
Open questionLow temperature oxidation of coal resulting from bad storage conditions does not decrease its
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Q351
Open questionBomb calorimeter can be used to determine the __________ of the coal.
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Q352
Open questionCalorific values of both the solid as well as the liquid fuels can be determined by __________ calorimeter.
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Q353
Open questionCalorific value as determined by bomb calorimeter is the
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Q354
Open questionWhich of the following is the most poisonous gas?
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Q355
Open questionEfficient burning of anthracite coal requires
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Q356
Open questionWashing of coal does not reduce its
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Q357
Open questionNitrogen in coal
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Q358
Open questionOxygen required for theoretically complete combustion of 1 Nm3 methane is __________ Nm3.
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Q359
Open questionA 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
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Q360
Open questionCoking time in narrow by-product coke ovens is around __________ hours.
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