Fuels and Combustion
Undercharging of coal in the by-product coke ovens results in

Decrease in the c.v. of coke oven gas
No change in the c.v. of coke oven gas
Increase in its throughput
Increase in the c.v. of coke oven gas

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
Sometimes water is sprayed during coal charging in the coke oven, which helps in

Reducing the cracking of hydrocarbons in the gas and increasing the percentage of CO & H₂ in the gas (due to the endothermic reaction represented by C + H₂O = CO + H₂)
Prevention of clinker formation in the oven
Controlling the dust nuisance while charging the coal
All of these

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
Cannel coal

All of these
Is a non-banded coal which can be ignited easily with a match stick or candle flame, hence is so named
Has a high volatile matter content and burns with a luminous smoky flame
Is non-coking

ANSWER DOWNLOAD EXAMIANS APP