MCQs

Chemical Engineering MCQs with Explanations

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781Chemical EngineeringMedium

Factor of safety (i.e., overdesign factor) in heat transfer equipments is about ________ percent more than the actual/theoretical design factor?

A15-20

B5-10

C30-35

D35-40

Correct answer

A. 15-20

Explanation

The correct answer is 15-20.

782Chemical EngineeringMedium

The partial pressure distribution of an ideal gas diffusing through another stagnant ideal gas at steady state follows a/an ________ law?

ALinear

BExponential

CParabolic

DCubic

Correct answer

B. Exponential

Explanation

The correct answer is Exponential.

783Chemical EngineeringMedium

Corrosion involves exchange of electrons in ________ corrosion?

AElectrochemical

BChemical

CNeither A. nor B.

DBoth A. & B.

Correct answer

D. Both A. & B.

Explanation

The correct answer is Both A. & B..

784Chemical EngineeringMedium

Bernoulli’s equation is not applicable, when the flow is________?

AIrrotational

BViscous

CIncompressible

DAll A., B. & C.

Correct answer

D. All A., B. & C.

Explanation

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

785Chemical EngineeringMedium

Dimension of kinematic viscosity is________?

AL2T-2

BL2T

CL2T-1

DMLT-1

Correct answer

C. L2T-1

Explanation

The correct answer is L2T-1.

786Chemical EngineeringMedium

Steel is welded using the ________ flame?

AOxidising

BCarburising

CAll A, B. & C

DNeutral

Correct answer

D. Neutral

Explanation

The correct answer is Neutral.

787Chemical EngineeringMedium

Alum is commercially produced from________?

AGalena

BGypsum

CBauxite

DFeldspar

Correct answer

C. Bauxite

Explanation

The correct answer is Bauxite.

788Chemical EngineeringMedium

If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will ________ times?

ANone of these

BIncrease by 1.8

CDecrease by 22

DIncrease by 21.6

Correct answer

D. Increase by 21.6

Explanation

The correct answer is Increase by 21.6.

789Chemical EngineeringMedium

Cermets are ________ materials?

ARefractory

BFully metallic

CAbrasive

DReinforced

Correct answer

A. Refractory

Explanation

The correct answer is Refractory.

790Chemical EngineeringMedium

Gummy & sticky materials like molasses, sugar etc. are best transported/handled by using a ________ conveyor?

ASlat

BDrag

CRibbon

DScrew

Correct answer

C. Ribbon

Explanation

The correct answer is Ribbon.

781Chemical EngineeringMedium

Factor of safety (i.e., overdesign factor) in heat transfer equipments is about ________ percent more than the actual/theoretical design factor?

A15-20

B5-10

C30-35

D35-40

Correct answer

A. 15-20

Explanation

The correct answer is 15-20.

782Chemical EngineeringMedium

The partial pressure distribution of an ideal gas diffusing through another stagnant ideal gas at steady state follows a/an ________ law?

ALinear

BExponential

CParabolic

DCubic

Correct answer

B. Exponential

Explanation

The correct answer is Exponential.

783Chemical EngineeringMedium

Corrosion involves exchange of electrons in ________ corrosion?

AElectrochemical

BChemical

CNeither A. nor B.

DBoth A. & B.

Correct answer

D. Both A. & B.

Explanation

The correct answer is Both A. & B..

784Chemical EngineeringMedium

Bernoulli’s equation is not applicable, when the flow is________?

AIrrotational

BViscous

CIncompressible

DAll A., B. & C.

Correct answer

D. All A., B. & C.

Explanation

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

785Chemical EngineeringMedium

Dimension of kinematic viscosity is________?

AL2T-2

BL2T

CL2T-1

DMLT-1

Correct answer

C. L2T-1

Explanation

The correct answer is L2T-1.

786Chemical EngineeringMedium

Steel is welded using the ________ flame?

AOxidising

BCarburising

CAll A, B. & C

DNeutral

Correct answer

D. Neutral

Explanation

The correct answer is Neutral.

787Chemical EngineeringMedium

Alum is commercially produced from________?

AGalena

BGypsum

CBauxite

DFeldspar

Correct answer

C. Bauxite

Explanation

The correct answer is Bauxite.

788Chemical EngineeringMedium

If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will ________ times?

ANone of these

BIncrease by 1.8

CDecrease by 22

DIncrease by 21.6

Correct answer

D. Increase by 21.6

Explanation

The correct answer is Increase by 21.6.

789Chemical EngineeringMedium

Cermets are ________ materials?

ARefractory

BFully metallic

CAbrasive

DReinforced

Correct answer

A. Refractory

Explanation

The correct answer is Refractory.

790Chemical EngineeringMedium

Gummy & sticky materials like molasses, sugar etc. are best transported/handled by using a ________ conveyor?

ASlat

BDrag

CRibbon

DScrew

Correct answer

C. Ribbon

Explanation

The correct answer is Ribbon.