A. High concentration of oxygen in flue gas means high stack loss
B. Gaseous fuels require the least % excess air for complete combustion
C. The ratio of fixed carbon to volatile matter percentage in coal is called its ‘fuel ratio’
D. Calorific value of natural gas is more than that of LPG
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Pick out the wrong statement ?
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White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is_______?
A. LPG is also used as fuel for automobiles & small furnaces and for cutting & welding of
metals
B. The minimum temperature, at which a petroleum oil vapor catches fire and continues to burn,
is called its flash point
C. Each ton of petroleum oil on distillation produces about 30-50 Nm3 of gas
D. Maximum yield of naphthalene is obtained on distillation of crude oil
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Coal tar (produced by high temperature carbonization) is the main source of_________?
A. Tar
B. Sulphide Coke
C. Coke Oven Gas
D. Pulverised coke
Submitted by: Muhammad Mutsadiq Umer
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A. Aromatic compounds
B. Aliphatic compounds
C. Paraffins
D. Olefins
Submitted by: Muhammad Mutsadiq Umer
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