The predominant mode of heat transfer which takes place from boiler furnace to water walls of a boiler is

The predominant mode of heat transfer which takes place from boiler fu

1.	The predominant mode of heat transfer which takes place from boiler furnace to water walls of a boiler is
A.	conduction
B.	convection
C.	both'a' & 'b'
D.	radiation
Answer» E.

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The predominant mode of heat transfer which takes place from boiler furnace to water walls of a boiler is

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