Fuels and Combustion Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of MgSO₄ & BaCl₂ MgCO₃ & NaCl BaSO₄ & NaCl MgO & Na₂CO₃ MgSO₄ & BaCl₂ MgCO₃ & NaCl BaSO₄ & NaCl MgO & Na₂CO₃ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Undercharging of coal in the by-product coke ovens results in Increase in the c.v. of coke oven gas No change in the c.v. of coke oven gas Increase in its throughput Decrease in the c.v. of coke oven gas Increase in the c.v. of coke oven gas No change in the c.v. of coke oven gas Increase in its throughput Decrease in the c.v. of coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Temperature of coke oven gas just before entering into saturator (for recovery of NH₃) is about __________ °C. 30 65 180 120 30 65 180 120 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Out of the following fuels, the difference between the net and gross calorific value is maximum in case of Bituminous coal Pitch Blast furnace gas Fuel oil Bituminous coal Pitch Blast furnace gas Fuel oil ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following would require least amount of secondary air for combustion? Bituminous coal containing 20% ash and 25% volatile matter Semi-bituminous coal containing 25% ash and 20% volatile matter Coke breeze containing 25% ash and 2% volatile matter Anthracite containing 10% volatile matter and 8% ash Bituminous coal containing 20% ash and 25% volatile matter Semi-bituminous coal containing 25% ash and 20% volatile matter Coke breeze containing 25% ash and 2% volatile matter Anthracite containing 10% volatile matter and 8% ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The ratio of % total carbon obtained in the ultimate analysis of coke and % fixed carbon obtained in the proximate analysis is always < 1 1 Unpredictable > 1 < 1 1 Unpredictable > 1 ANSWER DOWNLOAD EXAMIANS APP
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