Fuels and Combustion A carbonaceous fuel (containing no H₂ or hydrocarbons) is burnt and the resulting flue gas contains 21% CO₂. It means that 21% excess air has been used for combustion Complete combustion of fuel has taken place No excess air has been used for combustion 21% excess oxygen has been used for combustion 21% excess air has been used for combustion Complete combustion of fuel has taken place No excess air has been used for combustion 21% excess oxygen has been used for combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of BaSO₄ & NaCl MgSO₄ & BaCl₂ MgCO₃ & NaCl MgO & Na₂CO₃ BaSO₄ & NaCl MgSO₄ & BaCl₂ MgCO₃ & NaCl MgO & Na₂CO₃ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not endothermic? Cracking Reforming Partial oxidation Gasification Cracking Reforming Partial oxidation Gasification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Producer gas containing least amount of tar is produced by the High pressure gasification of coal (e.g. in Lurgi gasifier) Partial combustion of coal Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier) Partial combustion of large size (< 50 mm) coke High pressure gasification of coal (e.g. in Lurgi gasifier) Partial combustion of coal Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier) Partial combustion of large size (< 50 mm) coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Size of blast furnace grade coke is __________ mm. 15-25 >100 0-15 25-80 15-25 >100 0-15 25-80 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following combustibles is absent in blast furnace gas? CH₄ None of these H₂ CO CH₄ None of these H₂ CO ANSWER DOWNLOAD EXAMIANS APP
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