1.

______________ tells how much heat passes through 1 m2 of the partition per 1°C of differential temperature.(a) Friction coefficient(b) Temperature coefficient(c) Overall heat transfer coefficient(d) Time coefficientThis question was addressed to me during a job interview.My question comes from Heat Exchangers in chapter Building Blocks of Dairy Processing of Dairy Engineering

Answer»

Correct OPTION is (C) Overall heat transfer coefficient

For explanation I would say: The overall heat transfer coefficient refers to how well heat is conducted over a SERIES of MEDIUMS. This FACTOR, k, is a measure of how efficient the heat transfer is.



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