Question

What are the advantages of multiple effect evaporators over single effect evaporator?

(a) Suitable for large scale operation

(b) Suitable for continuous operation

(c) Maximize the energy input required for evaporating

(d) Suitable for large scale and for continuous operation

I had been asked this question in an internship interview.

This interesting question is from Single and Multiple Effect Evaporators topic in division Evaporation of Food Processing Unit Operations

Answer 1

Right answer is (d) Suitable for large scale and for continuous operation

To explain I would say: Advantages of multiple effect evaporators are suitable for large scale and for continuous operation. It is highly economical when compared to single effect.  Multiple effects are used to minimize the energy input required to evaporate undesirable water content.