Fuels and Combustion Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of MgSO₄ & BaCl₂ BaSO₄ & NaCl MgO & Na₂CO₃ MgCO₃ & NaCl MgSO₄ & BaCl₂ BaSO₄ & NaCl MgO & Na₂CO₃ MgCO₃ & NaCl ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion As time passes, the calorific value of stored coal Decreases Remains unaltered May increase or decrease (depends on the method of storage) Increases Decreases Remains unaltered May increase or decrease (depends on the method of storage) Increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is the most poisonous gas? Blast furnace gas Producer gas Coke oven gas L.D. converter gas Blast furnace gas Producer gas Coke oven gas L.D. converter gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During the carbonisation of coal Evolution of H₂ and formation of methane and aromatics occur at > 700°C All tar is evolved at < 600°C All of these Hard semi-coke starts shrinking at 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C All tar is evolved at < 600°C All of these Hard semi-coke starts shrinking at 600°C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion __________ has the widest inflammability limit (explosion limit) of all the gases. Acetylene Hydrogen Methane Carbon monoxide Acetylene Hydrogen Methane Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bulk density of pulverised coal may be about __________ kg/m³. 100 1500 500 1000 100 1500 500 1000 ANSWER DOWNLOAD EXAMIANS APP
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