Major sources of noise in furnace operation arises from air inspirators, combust

Question

Major sources of noise in furnace operation arises from air inspirators, combustion, side wall vibrations and fluctuation in the process heat load. A 50% increase in fuel firing rate may increase the furnace noise level by about __________ decibels.

Options:

A . 3

B . 30

C . 70

D . 100

Answer: Option A

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