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Fuels and Combustion

Fuels and Combustion
The most matured coal out of the following is

Semi-anthracite
Sub-bituminous
Lignite
Bituminous

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Fuels and Combustion
The calorific value of L.D. converter gas is about __________ Kcal/Nm³ .

1800
4500
10000
800

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Fuels and Combustion
A coal containing very high percentage of durain is called __________ coal.

Boghead
Splint
Non-banded
Bright

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Fuels and Combustion
A coal containing high amount of volatile matter will have

Low ignition temperature
Very little ash content
Low adiabatic flame temperature
High fusion point of its ash

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Fuels and Combustion
Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant?

None of these
Ammonium phosphate
Ammonium nitrate
Ammonium sulphate

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Fuels and Combustion
Washing of coal does not reduce its

Fusion point of ash
Heating value
None of these
S & P content

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