Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about____°C.

Fuels and Combustion
Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about____°C.

105

85

70

145

105

85

70

145

ANSWER DOWNLOAD EXAMIANS APP

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

Prevention of clinker formation in the oven

Controlling the dust nuisance while charging the coal

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)

All of these

Prevention of clinker formation in the oven

Controlling the dust nuisance while charging the coal

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)

All of these

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
A fuel with high heat release rate will

Have high calorific value

Have high adiabatic flame temperature

None of these

Require smaller combustion chamber

Have high calorific value

Have high adiabatic flame temperature

None of these

Require smaller combustion chamber

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
Coke compared to the coal from which it has been made, contains

Greater percentage of ash

Less volatile matter

More carbon

All of these

Greater percentage of ash

Less volatile matter

More carbon

All of these

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
Calorific value of gobar gas (containing CH₄ = 60% , H₂ = 10% ; CO₂ = 30%) may be about __________ Kcal/Nm³.

1800

10200

3200

5400

1800

10200

3200

5400

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
The cooling medium used in dry quenching of coke is

Carbon dioxide

Phenolic water

Air

Nitrogen

Carbon dioxide

Phenolic water

Air

Nitrogen

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion

Fuels and Combustion Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about____°C.

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

Fuels and Combustion A fuel with high heat release rate will

Fuels and Combustion Coke compared to the coal from which it has been made, contains

Fuels and Combustion Calorific value of gobar gas (containing CH₄ = 60% , H₂ = 10% ; CO₂ = 30%) may be about __________ Kcal/Nm³.

Fuels and Combustion The cooling medium used in dry quenching of coke is

Fuels and Combustion
Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about____°C.

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

Fuels and Combustion
A fuel with high heat release rate will

Fuels and Combustion
Coke compared to the coal from which it has been made, contains

Fuels and Combustion
Calorific value of gobar gas (containing CH₄ = 60% , H₂ = 10% ; CO₂ = 30%) may be about __________ Kcal/Nm³.

Fuels and Combustion
The cooling medium used in dry quenching of coke is