MCQs

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.

31%

2,600 of 8,342MCQs reviewed

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

2601Chemical EngineeringMedium

n the agitators, the power required will be changed with the increase of diameter of agitator D. as ________?

BD5

CD9

Correct answer

B. D5

Explanation

The correct answer is D5.

2602Chemical EngineeringMedium

A good lubricant should have high ________?

ANone of these

BVolatility

CPour point

DViscosity index

Correct answer

D. Viscosity index

Explanation

The correct answer is Viscosity index.

2603Chemical EngineeringMedium

Reducing atmosphere is maintained in a________?

ASoaking pit

BL.D. converter

CCalcination kiln

DBlast furnace

Correct answer

D. Blast furnace

Explanation

The correct answer is Blast furnace.

2604Chemical EngineeringMedium

Cold chisel‟s hammers are made of________?

AForged steel

BHigh carbon steel

CMild steel

DHigh speed steel

Correct answer

B. High carbon steel

Explanation

The correct answer is High carbon steel.

2605Chemical EngineeringMedium

Aerobic biological oxidation ponds used for the purification of polluted water________?

AAll A., B. & C.

BIs not very effective for non-biodegradable substances (e.g. ABS) containing effluents

CDestroys/removes pathogen much more effectively if the sewage is chlorinated

DDestroys/removes pathogen from the sewage

Correct answer

A. All A., B. & C.

Explanation

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

2606Chemical EngineeringMedium

The expression, nCv(T2 – T1), is for the ________ of an ideal gas?

ANone of these

BWork done under adiabatic condition

CCo-efficient of thermal expansion

DCompressibility

Correct answer

B. Work done under adiabatic condition

Explanation

The correct answer is Work done under adiabatic condition.

2607Chemical EngineeringMedium

High speed cutting tool steels contain about ________ percent of tungsten?

A30-35

B6-8

C18-20

D50-55

Correct answer

C. 18-20

Explanation

The correct answer is 18-20.

2608Chemical EngineeringMedium

The caking of crystals can be prevented by ________?

ACoating the product with inert material

BMaintaining low critical humidity

CMaintaining high critical humidity

DBoth A. and C.

Correct answer

D. Both A. and C.

Explanation

The correct answer is Both A. and C..

2609Chemical EngineeringMedium

The pyrogallol solution used in Orsat apparatus can absorb________?

AAll CO, CO2, and O2

BOnly O2

CBoth O2 and CO2

DBoth O2 and CO

Correct answer

C. Both O2 and CO2

Explanation

The correct answer is Both O2 and CO2.

2610Chemical EngineeringMedium

Given, 3H2 + CO = CH4 + H2O, KP = 101.84 and, 4H2 + CO2 = CH4 + 2H2O, KP = 101.17 the KP for the reaction CO + H2O = CO2 + H2 is ________?

A103.01

B100.67

C10-0.67

D10-3.01

Correct answer

B. 100.67

Explanation

The correct answer is 100.67.

Aerobic biological oxidation ponds used for the purification of polluted water________?

AAll A., B. & C.

BIs not very effective for non-biodegradable substances (e.g. ABS) containing effluents

CDestroys/removes pathogen much more effectively if the sewage is chlorinated

DDestroys/removes pathogen from the sewage

Correct answer

A. All A., B. & C.

Explanation

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