Circulation of gases in furnace is caused by the Options: A . &nbspChange in volume during a change of temperature B . &nbspDifference in density between hot and cold gases C . &nbspFurnace pressure in conjunction with draft in flues D . &nbspAll of the above

Circulation of gases in furnace is caused by the

Question

Circulation of gases in furnace is caused by the

Options:

A . Change in volume during a change of temperature

B . Difference in density between hot and cold gases

C . Furnace pressure in conjunction with draft in flues

D . All of the above

Answer: Option D

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