Undercharging of coal in the by-product coke ovens results in

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

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
Coking time in narrow by-product coke ovens is around __________ hours.

8

18

48

80

8

18

48

80

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

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
The calorific value of a gas of composition CO₂ = 20%, H₂ = 50%, CH₄ = 30%, is y. If the composition of gas is changed to H₂ = 50%, CH₄ = 30%, CO₂ = 10%, N₂ = 10%, then the calorifice value will be

1.8 y

1.05 y

0.95 y

Y

1.8 y

1.05 y

0.95 y

Y

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
The calorific value of natural gas is about __________ kcal/Nm³.

10, 000

2500

25, 000

35, 000

10, 000

2500

25, 000

35, 000

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

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

Fuels and Combustion

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

Fuels and Combustion Coking time in narrow by-product coke ovens is around __________ hours.

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

Fuels and Combustion The calorific value of a gas of composition CO₂ = 20%, H₂ = 50%, CH₄ = 30%, is y. If the composition of gas is changed to H₂ = 50%, CH₄ = 30%, CO₂ = 10%, N₂ = 10%, then the calorifice value will be

Fuels and Combustion The calorific value of natural gas is about __________ kcal/Nm³.

Fuels and Combustion Cannel coal

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

Fuels and Combustion
Coking time in narrow by-product coke ovens is around __________ hours.

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

Fuels and Combustion
The calorific value of a gas of composition CO₂ = 20%, H₂ = 50%, CH₄ = 30%, is y. If the composition of gas is changed to H₂ = 50%, CH₄ = 30%, CO₂ = 10%, N₂ = 10%, then the calorifice value will be

Fuels and Combustion
The calorific value of natural gas is about __________ kcal/Nm³.

Fuels and Combustion
Cannel coal