Fuels and Combustion Washing of coal decreases its Mineral matter content Ash content Both B and C Caking index Mineral matter content Ash content Both B and C Caking index ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of MgO & Na₂CO₃ MgSO₄ & BaCl₂ MgCO₃ & NaCl BaSO₄ & NaCl MgO & Na₂CO₃ MgSO₄ & BaCl₂ MgCO₃ & NaCl BaSO₄ & NaCl ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The pyragallol solution used in orsat apparatus can absorb Both O₂ and CO Both O₂ and CO₂ Only O₂ All of these Both O₂ and CO Both O₂ and CO₂ Only O₂ All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature oxidation of stored coal results in the Decrease in its caking power & calorific value All of these Increase in its oxygen content Decrease in its carbon & hydrogen content Decrease in its caking power & calorific value All of these Increase in its oxygen content Decrease in its carbon & hydrogen content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is a measure of the agglutinating (i.e., binding) property of coal? Caking index Gray-king index Thickness of plastic layer Swelling index Caking index Gray-king index Thickness of plastic layer Swelling index ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following would require maximum amount of % excess air for complete combustion? Furnace oil Pulverised coal Lump coal (fixed on chain grate) Coke oven gas Furnace oil Pulverised coal Lump coal (fixed on chain grate) Coke oven gas ANSWER DOWNLOAD EXAMIANS APP