MCQs

Chemical Engineering MCQs with Explanations

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3761Chemical EngineeringMedium

If a two phase system is in physical equilibrium; then it means that, the________?

AAll A., B. and C.

BEscaping tendency of each component from the liquid phase to the vapor phase is exactly

CTotal pressure throughout the liquid phase is equal to that throughout the vapor phase

DTemperature of the liquid phase is equal to that of the vapor phase

Correct answer

A. All A., B. and C.

Explanation

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

3762Chemical EngineeringMedium

________ strain is measured using a ‘strain rosetter’?

ANone of these

BShear

CLinear

DVolumetric

Correct answer

C. Linear

Explanation

The correct answer is Linear.

3763Chemical EngineeringMedium

Which of the following has no effect on the carbide forming tendency in steels?

AChromium

BPhosphorus

CVanadium

DMolybdenum

Correct answer

B. Phosphorus

Explanation

The correct answer is Phosphorus.

3764Chemical EngineeringMedium

The role of a catalyst in a chemical reaction is to change the________?

AHeat of reaction

BActivation energy

CEquilibrium constant

DFinal products

Correct answer

B. Activation energy

Explanation

The correct answer is Activation energy.

3765Chemical EngineeringMedium

Biological shield in a nuclear power reactor is made of________?

AZircaloy

BCadmium

CSteel

DConcrete

Correct answer

D. Concrete

Explanation

The correct answer is Concrete.

3766Chemical EngineeringMedium

If pH value of an acidic solution is decreased from 5 to 2, then the increase in its hydrogen ion concentration is ________ times?

A1000

B10000

C10

D100

Correct answer

A. 1000

Explanation

The correct answer is 1000.

3767Chemical EngineeringMedium

Forced recirculation of furnace gases is practised________?

ATo ensure uniform temperature

BTo increase heat transfer by convection

CAll A., B. and C.

DIn furnaces, operating below 750°C

Correct answer

C. All A., B. and C.

Explanation

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

3768Chemical EngineeringMedium

Internal energy of a gas obeying Van-Der-Waals equation of state, [p + (a/v2)] (V – b) = RT, depends upon its________?

APressure & specific volume

BTemperature & specific volume

CTemperature only

DPressure & temperature

Correct answer

D. Pressure & temperature

Explanation

The correct answer is Pressure & temperature.

3769Chemical EngineeringMedium

Mullite is chemically represented by________?

A2Al2O3. 3SiO2

B3Al2O3. 2SiO2

CAl2O3. SiO2

DAl2O3. 2SiO2

Correct answer

B. 3Al2O3. 2SiO2

Explanation

The correct answer is 3Al2O3. 2SiO2.

3770Chemical EngineeringMedium

The main raw material for manufacture of silicon carbide refractories is________?

ACarborundum

BPericlase

CBauxite

DCorundum

Correct answer

A. Carborundum

Explanation

The correct answer is Carborundum.

If a two phase system is in physical equilibrium; then it means that, the________?

AAll A., B. and C.

BEscaping tendency of each component from the liquid phase to the vapor phase is exactly

CTotal pressure throughout the liquid phase is equal to that throughout the vapor phase

DTemperature of the liquid phase is equal to that of the vapor phase

Correct answer

A. All A., B. and C.

Explanation

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