Overall heat transfer co-efficient of a particular tube is U₁. If the same tube with some dirt deposited on either side has coefficient U₂, then

Overall heat transfer co-efficient of a particular tube is U₁. If th

1.	Overall heat transfer co-efficient of a particular tube is U₁. If the same tube with some dirt deposited on either side has coefficient U₂, then
A.	₁ = U₂
B.	₂ > U₁
C.	₁ > U₂
D.	₁ = dirt factor - U₂
Answer» B. ₂ > U₁

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Overall heat transfer co-efficient of a particular tube is U₁. If the same tube with some dirt deposited on either side has coefficient U₂, then

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