Q121
Open questionDust content in raw blast furnace gas is about __________ gm/Nm3, hence it is cleaned to the dust level of about < 10 mg/Nm3 before use.
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Chemical Engineering · all questionsFuels And Combustion
Fuels And Combustion
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Q122
Open questionCoke oven gas is a better fuel than blast furnace gas, because of its higher
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Q123
Open questionThe main advantage of forced draft over natural draft is that
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Q124
Open questionA particular coal is said to be free burning when it
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Q125
Open questionMain constituents of benzol are
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Q126
Open questionA coal containing very high percentage of durain is called __________ coal.
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Q127
Open questionIn case of pulverised coal fired steam boiler, the secondary air serves the main purpose of
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Q128
Open questionGrindability index of a coal is 100. It implies that the
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Q129
Open questionHeat penetration rate in narrow coke ovens in high temperature carbonisation of coal is around __________ cm/hr.
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Q130
Open questionThe reaction, C + CO2 ⟷ 2CO, taking place during coal gasification is called the __________ reaction.
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Q131
Open questionGross & net calorific value is the same for
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Q132
Open questionWhich of the following constituents of a fuel does not contribute to its calorific value on combustion?
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Q133
Open questionWhich of the following fuels has the highest calorific value per unit mass (kcal/kg)?
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Q134
Open questionTar is a better fuel than furnace oil, because of its
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Q135
Open questionWhen incomplete combustion loss is high, the flue gas analysis shows large amount of
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Q136
Open questionHigh amount of sulphur and phosphorous in coke causes
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Q137
Open questionWhich of the following constituents of coal is the most important in the production of coke?
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Q138
Open questionBenzol is used
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Q139
Open questionCoking time in a commercial high temperature coal carbonisation plant is about __________ hours.
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Q140
Open questionPick out the wrong statement.
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