Artificial draught produced by a fan can be controlled by the

Fuels and Combustion
Artificial draught produced by a fan can be controlled by the

Variation in the pitch of the fan blades

All of these

Damper

Speed of the fan

Variation in the pitch of the fan blades

All of these

Damper

Speed of the fan

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

Controlling the dust nuisance while charging the coal

All of these

Prevention of clinker formation in the oven

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)

Controlling the dust nuisance while charging the coal

All of these

Prevention of clinker formation in the oven

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)

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Fuels and Combustion
A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the 'carpet loss'. The carpet loss may be of the order of __________ cms.

3 to 4

1 to 2

5 to 15

20 to 40

3 to 4

1 to 2

5 to 15

20 to 40

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Fuels and Combustion
The gasification reaction represented by, C + H₂O = CO + H₂, is

Endothermic

Catalytic

Exothermic

Autocatalytic

Endothermic

Catalytic

Exothermic

Autocatalytic

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Fuels and Combustion
The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to

None of these

Minimise its corrosion

Avoid radiation heat loss

Make it look attractive

None of these

Minimise its corrosion

Avoid radiation heat loss

Make it look attractive

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Fuels and Combustion
Very __________ coals are completely devoid of cokability i.e, it is non coking.

Both A & B

Young

Neither A nor B

Mature

Both A & B

Young

Neither A nor B

Mature

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Fuels and Combustion

Fuels and Combustion Artificial draught produced by a fan can be controlled by the

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

Fuels and Combustion A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the 'carpet loss'. The carpet loss may be of the order of __________ cms.

Fuels and Combustion The gasification reaction represented by, C + H₂O = CO + H₂, is

Fuels and Combustion The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to

Fuels and Combustion Very __________ coals are completely devoid of cokability i.e, it is non coking.

Fuels and Combustion
Artificial draught produced by a fan can be controlled by the

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

Fuels and Combustion
A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the 'carpet loss'. The carpet loss may be of the order of __________ cms.

Fuels and Combustion
The gasification reaction represented by, C + H₂O = CO + H₂, is

Fuels and Combustion
The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to

Fuels and Combustion
Very __________ coals are completely devoid of cokability i.e, it is non coking.