MCQs

Chemical Engineering MCQs with Explanations

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2941Chemical EngineeringMedium

Young’s modulus of a material is the measure of its ________?

ATensile strength

BMalleability

CStiffness

DCreep resistance

Correct answer

C. Stiffness

Explanation

The correct answer is Stiffness.

2942Chemical EngineeringMedium

The ‘bomb’ in the bomb calorimeter is made of________?

ACopper

BHigh silicon iron (14% Si)

CMolybdenum stainless steel

DMild steel

Correct answer

C. Molybdenum stainless steel

Explanation

The correct answer is Molybdenum stainless steel.

2943Chemical EngineeringMedium

Mechanical conveyors which push the material along an endless trough or tube are called scrappers. Which of the following conveying equipments comes under the category of „scrappers‟?

AFlight conveyor

BScrew conveyor

CBoth B. and C.

DBucket conveyor

Correct answer

C. Both B. and C.

Explanation

The correct answer is Both B. and C..

2944Chemical EngineeringMedium

Pick out the wrong statement?

AIn a static mass of liquid, the pressure at a point is the same for all liquids

BAs per Pascal’s law, the pressure at a point in a static or uniformly moving fluid is equal in all

CAtmospheric pressure = absolute pressure ‒ gage pressure

DPressure decreases exponentially with elevation in an isothermal atmosphere

Correct answer

A. In a static mass of liquid, the pressure at a point is the same for all liquids

Explanation

The correct answer is In a static mass of liquid, the pressure at a point is the same for all liquids.

2945Chemical EngineeringMedium

High specific speed of a pump implies that, it is a/an ________ pump?

ANone of these

BMixed flow

CCentrifugal

DAxial flow

Correct answer

D. Axial flow

Explanation

The correct answer is Axial flow.

2946Chemical EngineeringMedium

Zeolite is used in the ________?

AHydrogenation of fatty oil as a catalyst

BGlass manufacture

CDevelopment of exposed photographic plate

DWater treatment

Correct answer

D. Water treatment

Explanation

The correct answer is Water treatment.

2947Chemical EngineeringMedium

Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and________?

ASulphuric acid

BHydrochloric acid

CPhosphoric acid

DHydrofluoric acid

Correct answer

A. Sulphuric acid

Explanation

The correct answer is Sulphuric acid.

2948Chemical EngineeringMedium

Which of the following is a rich fuel gas?

ANone of these

BCoal gas from underground gasification of coal

CRefinery gases

DProducer gas

Correct answer

C. Refinery gases

Explanation

The correct answer is Refinery gases.

2949Chemical EngineeringMedium

Which of the following is prone to cup and cone fracture?

ASoft brass

BFlat tensile specimen of ductile metal

CRound specimen of ductile metal

DCast iron

Correct answer

C. Round specimen of ductile metal

Explanation

The correct answer is Round specimen of ductile metal.

2950Chemical EngineeringMedium

CO2 can be absorbed by________?

ACold Ca(OH)2

BAlumina

CHeated charcoal

DHot cupric oxide

Correct answer

C. Heated charcoal

Explanation

The correct answer is Heated charcoal.

Pick out the wrong statement?

AIn a static mass of liquid, the pressure at a point is the same for all liquids

BAs per Pascal’s law, the pressure at a point in a static or uniformly moving fluid is equal in all

CAtmospheric pressure = absolute pressure ‒ gage pressure

DPressure decreases exponentially with elevation in an isothermal atmosphere

Correct answer

A. In a static mass of liquid, the pressure at a point is the same for all liquids

Explanation

The correct answer is In a static mass of liquid, the pressure at a point is the same for all liquids.