Question

Heating on the surface of a heat exchanger leads to fouling.

(a) True

(b) False

The question was asked in an interview for internship.

This intriguing question comes from Unit Operations in section Equilibrium Stage Operations, Unit Operations – Extraction, Crystallization and Filteration of Food Engineering

Answer 1

Correct option is (a) True

To explain I would say: Heating on the surface of a heat exchanger leads to fouling. Hence surface heating shouldn’t be done.