Fuels and Combustion Soft coke is not A domestic fuel None of these Produced by low temperature carbonisation of coal Used in blast furnaces A domestic fuel None of these Produced by low temperature carbonisation of coal Used in blast furnaces ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the oxygen content of the coal, its __________ decreases. Both A & B Caking power Calorific value Neither A nor B Both A & B Caking power Calorific value Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bituminous coal Ignites less easily than anthracite Both B and C Is generally coking Burns with smoky yellow flame Ignites less easily than anthracite Both B and C Is generally coking Burns with smoky yellow flame 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 Increase in its throughput Decrease in the c.v. of coke oven gas No change in the c.v. of coke oven gas Increase in the c.v. of coke oven gas Increase in its throughput Decrease in the c.v. of coke oven gas No change in the c.v. of coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is a measure of the agglutinating (i.e., binding) property of coal? Thickness of plastic layer Caking index Gray-king index Swelling index Thickness of plastic layer Caking index Gray-king index Swelling index ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal is most disadvantageous during None of these Its pulverisation (as it requires more power) Combustion of fire slacks on the grates Handling (e.g. when emptying wagons) None of these Its pulverisation (as it requires more power) Combustion of fire slacks on the grates Handling (e.g. when emptying wagons) ANSWER DOWNLOAD EXAMIANS APP
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