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Heat Transfer - Engineering

Q1:

What is the geometric mean of two heat transfer areas A1 and A2 ?

A A1 . A2

B A1 + A2

C  A1 . A2

D 2 A1 . A2

ANS:A - A1 . A2

The geometric mean of two quantities 𝐴1A1​ and 𝐴2A2​ is given by: 𝐴1⋅𝐴2A1​⋅A2​​ So, the correct option is: 𝐴1⋅𝐴2A1​⋅A2​​.