Study & Learn

Chemical Engineering MCQs with Explanations

Read every question, see the correct answer, and understand the explanation at your own pace. Study mode has no timer and no negative marking.

200 of 8,342MCQs reviewed

Study Mode — explanations are always visiblePrefer a timed quiz? Start test

201Chemical EngineeringMedium

Which of the following is used as a binding material in soap to improve soap texture?

ASodium carbonate

BRosin

CBenzyl acetate

DBorax

Correct answer

D. Borax

Explanation

The correct answer is Borax.

202Chemical EngineeringMedium

Which of the following is not a binder for coal briquetting?

ANone of these

BCoal tar

CBitumen

DMolasses

Correct answer

A. None of these

Explanation

The correct answer is None of these.

203Chemical EngineeringMedium

Impurities present in brine is normally removed by treatment with?

ALime, ammonia and carbon

BNH3 and CO2

CLime and soda ash

DAll A, B. and C.

Correct answer

D. All A, B. and C.

Explanation

The correct answer is All A, B. and C..

204Chemical EngineeringMedium

An electron has a mass that is approximately ________ that of the proton?

A1/1836 (approximately)

C1836 (approximately)

Correct answer

A. 1/1836 (approximately)

Explanation

The correct answer is 1/1836 (approximately).

205Chemical EngineeringMedium

Basic bricks are not made of ________?

AMagnesite

BFireclay

CChromite

DForsterite

Correct answer

B. Fireclay

Explanation

The correct answer is Fireclay.

206Chemical EngineeringMedium

________ paper is used in the manufacture of newsprint paper?

AWrapping

BGround-wood

CTissue

DBoard

Correct answer

B. Ground-wood

Explanation

The correct answer is Ground-wood.

207Chemical EngineeringMedium

Which of the following holds good for a solution obeying Raoult’s law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing)?

AΔV = 0

BΔH = 0

CΔH = 1 (+ ve) and Δ V = -ve

DBoth B. and C.

Correct answer

D. Both B. and C.

Explanation

The correct answer is Both B. and C..

208Chemical EngineeringMedium

Which of the following two quantities when same, makes one pipe system equivalent to another pipe system?

AHead & discharge

BFriction factor & diameter

CLength & diameter

DLength & discharge

Correct answer

A. Head & discharge

Explanation

The correct answer is Head & discharge.

209Chemical EngineeringMedium

Bubble cap tray is the most commonly used tray in large distillation column, because________?

AOf its flexibility and nearly constant efficiency under varying conditions of operation

BIt eliminates the foaming and entrainment tendency during operation

CIt incurs less pressure drop as compared to any other try designed for the same duty

DNone of these

Correct answer

A. Of its flexibility and nearly constant efficiency under varying conditions of operation

Explanation

The correct answer is Of its flexibility and nearly constant efficiency under varying conditions of operation.

210Chemical EngineeringMedium

A straight line is obtained on plotting reciprocal of filtration rate vs. the volume of filtrate for ________ flow of filtrate?

AIncompressible cake and turbulent

BIncompressible cake and laminar

CCompressible cake and turbulent

DCompressible cakes and laminar

Correct answer

B. Incompressible cake and laminar

Explanation

The correct answer is Incompressible cake and laminar.

Bubble cap tray is the most commonly used tray in large distillation column, because________?

AOf its flexibility and nearly constant efficiency under varying conditions of operation

BIt eliminates the foaming and entrainment tendency during operation

CIt incurs less pressure drop as compared to any other try designed for the same duty

DNone of these

Correct answer

A. Of its flexibility and nearly constant efficiency under varying conditions of operation

Explanation

The correct answer is Of its flexibility and nearly constant efficiency under varying conditions of operation.