1000+ Chemical Engineering Quiz Questions and Answers Pdf - 2

Question: 6

When an unsaturated air water vapor mixture is heated at constant pressure, then the

(A) relative humidity increases

(B) relative humidity decreases

(C) partial pressure of water vapor increases

(D) specific humidity decreases

Question: 7

A bimetallic strip is used in which of the following type of steam trap?

(A) thermodynamic

(B) float trap

(C) thermostatic

(D) inverted bucket

Question: 8

Which of the following is used as a food preservative?

(A) benzene

(B) sodium meta aluminate

(C) sodium benzoate

(D) benzoic acid

Question: 9

Silicon crystal can be converted to p-type semi conductor by doping with

(A) boron

(B) carbon

(C) nitrogen

(D) phosphorous

Question: 10

Cast iron has the unique property of high

(A) malleability

(B) hardness

(C) damping characteristics

(D) ductility