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Chemical Engineering Basics - Engineering

Q1:

The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

A 5

B 15

C 30

D 45

ANS:B - 15

The excess air required for the combustion of pulverized coal is typically around 15 percent. This additional air is necessary to ensure complete combustion of the coal particles, leading to efficient and clean combustion processes. Therefore, the correct option is: 15 percent