Question

Combustion of pulverised coal as compared to that of lump coal __________

a.

develops a non-luminous flame

b.

can be done with less excess air

c.

develops a low temperature flame

d.

provides a lower rate of heat release

Answer: (b).can be done with less excess air

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Q. Combustion of pulverised coal as compared to that of lump coal __________

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