Vacuum is generally maintained in the vapour space o... - Solved MCQs & Answer

3184Chemical EngineeringMedium

Vacuum is generally maintained in the vapour space of an evaporator mainly to________?

AGet economical temperature difference by using moderate pressure steam

BFacilitate forward feeding in multiple effect evaporation

CAchieve very high concentration of the final product

DConcentrate heat sensitive materials

Correct answer

A. Get economical temperature difference by using moderate pressure steam

Explanation

The correct answer is Get economical temperature difference by using moderate pressure steam.

Related Chemical Engineering MCQs

View all 8342 MCQs →

MCQ #3186

The crystal structure of most of the common metals is________?

Ans: CubicRead →

MCQ #3182

The ratio of kinematic viscosity to thermal diffusivity is called the ________ number?

Ans: PrandtlRead →

MCQ #3187

Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around ________ metres/second?

Ans: 1Read →

MCQ #3181

Products drawn from the top to bottom of the crude oil distillation column has progressively increasing ________?

Ans: All A., B. and C.Read →

MCQ #5269

In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones; because the smaller diameter tubes ________?

Ans: Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be lessRead →

MCQ #7355

The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by ________?

Ans: Introducing integral controlRead →