MCQs

Chemical Engineering MCQs with Explanations

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3151Chemical EngineeringMedium

Osmotic pressure exerted by a solution prepared by dissolving one gram mole of a solute in 22.4 litres of a solvent at 0°C will be ________ atmosphere?

A1.5

B0.5

Correct answer

D. 1

Explanation

The correct answer is 1.

3152Chemical EngineeringMedium

Ammonium nitrate (a fertilizer) is coated with limestone powder to ________?

ACut down its production cost

BIncrease its nitrogen content

CAvoid the risk of explosion

DAdd extra nutrient as fertilizer

Correct answer

C. Avoid the risk of explosion

Explanation

The correct answer is Avoid the risk of explosion.

3153Chemical EngineeringMedium

Souders Brown equation given by, U = Kv √(ρl – ρv)/ρv, is used for the calculation of the ________ in a continuous distillation column?

ATray pressure drop

BDiameter of the sieve plate column

CResidence time in the downcomer for the disengagement of entrained vapour

DDiameter of the bubble cap column

Correct answer

D. Diameter of the bubble cap column

Explanation

The correct answer is Diameter of the bubble cap column.

3154Chemical EngineeringMedium

The major constituents of glass are________?

ASilica, alumina and soda ash

BSand, lime and soda ash

CLime, clay and soda ash

DSilica, alumina and clay

Correct answer

B. Sand, lime and soda ash

Explanation

The correct answer is Sand, lime and soda ash.

3155Chemical EngineeringMedium

________ column is the most suitable for achieving the best performance for mass transfer operations involving liquid with dispersed solids?

ASpray

BPlate

CPacked

DWetted wall

Correct answer

B. Plate

Explanation

The correct answer is Plate.

3156Chemical EngineeringMedium

Thermal spalling mainly occurs during ________ of furnaces?

ABoth A. & B.

BNeither A. nor B.

CWarming up

DCooling down

Correct answer

A. Both A. & B.

Explanation

The correct answer is Both A. & B..

3157Chemical EngineeringMedium

With increase in density, the viscosity of petroleum products ________?

AEither A. or B.

BDecreases

CRemain same

DIncreases

Correct answer

D. Increases

Explanation

The correct answer is Increases.

3158Chemical EngineeringMedium

What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system?

ANone of these

Correct answer

B. 1

Explanation

The correct answer is 1.

3159Chemical EngineeringMedium

Which of the following decreases with increase in pressure?

AMelting point of wax

BNone of these

CBoiling point of liquids

DMelting point of ice

Correct answer

D. Melting point of ice

Explanation

The correct answer is Melting point of ice.

3160Chemical EngineeringMedium

Bomb calorimeter can be used to determine the ________ of the coal?

ACalorific value

BBoth A. & B.

CNeither A. nor B.

DSulphur content

Correct answer

B. Both A. & B.

Explanation

The correct answer is Both A. & B..

3151Chemical EngineeringMedium

Osmotic pressure exerted by a solution prepared by dissolving one gram mole of a solute in 22.4 litres of a solvent at 0°C will be ________ atmosphere?

A1.5

B0.5

Correct answer

D. 1

Explanation

The correct answer is 1.

3152Chemical EngineeringMedium

Ammonium nitrate (a fertilizer) is coated with limestone powder to ________?

ACut down its production cost

BIncrease its nitrogen content

CAvoid the risk of explosion

DAdd extra nutrient as fertilizer

Correct answer

C. Avoid the risk of explosion

Explanation

The correct answer is Avoid the risk of explosion.

3153Chemical EngineeringMedium

Souders Brown equation given by, U = Kv √(ρl – ρv)/ρv, is used for the calculation of the ________ in a continuous distillation column?

ATray pressure drop

BDiameter of the sieve plate column

CResidence time in the downcomer for the disengagement of entrained vapour

DDiameter of the bubble cap column

Correct answer

D. Diameter of the bubble cap column

Explanation

The correct answer is Diameter of the bubble cap column.

3154Chemical EngineeringMedium

The major constituents of glass are________?

ASilica, alumina and soda ash

BSand, lime and soda ash

CLime, clay and soda ash

DSilica, alumina and clay

Correct answer

B. Sand, lime and soda ash

Explanation

The correct answer is Sand, lime and soda ash.

3155Chemical EngineeringMedium

________ column is the most suitable for achieving the best performance for mass transfer operations involving liquid with dispersed solids?

ASpray

BPlate

CPacked

DWetted wall

Correct answer

B. Plate

Explanation

The correct answer is Plate.

3156Chemical EngineeringMedium

Thermal spalling mainly occurs during ________ of furnaces?

ABoth A. & B.

BNeither A. nor B.

CWarming up

DCooling down

Correct answer

A. Both A. & B.

Explanation

The correct answer is Both A. & B..

3157Chemical EngineeringMedium

With increase in density, the viscosity of petroleum products ________?

AEither A. or B.

BDecreases

CRemain same

DIncreases

Correct answer

D. Increases

Explanation

The correct answer is Increases.

3158Chemical EngineeringMedium

What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system?

ANone of these

Correct answer

B. 1

Explanation

The correct answer is 1.

3159Chemical EngineeringMedium

Which of the following decreases with increase in pressure?

AMelting point of wax

BNone of these

CBoiling point of liquids

DMelting point of ice

Correct answer

D. Melting point of ice

Explanation

The correct answer is Melting point of ice.

3160Chemical EngineeringMedium

Bomb calorimeter can be used to determine the ________ of the coal?

ACalorific value

BBoth A. & B.

CNeither A. nor B.

DSulphur content

Correct answer

B. Both A. & B.

Explanation

The correct answer is Both A. & B..