Chemical Engineering Archives

Chemical Engineering

Prepare with the best Chemical Engineering MCQs with answers and detailed explanations for exams and job tests. Our collection covers key topics such as chemical process calculations, thermodynamics, fluid mechanics, heat transfer, mass transfer, reaction engineering, instrumentation, and plant design. These Chemical Engineering multiple-choice questions are ideal for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and job interviews. Practice online with updated Chemical Engineering MCQs to strengthen your concepts and improve technical problem-solving skills.

6531. In area meter (e.g., rotameter), with increase in the fluid flow rate, the

Pressure drop increases linearly

Pressure drop is almost constant

Area through which fluid flows does not vary

None of these

✅ The correct answer is option B.

6532. Choose the set of pressure intensities that are equivalent.

4.33 psi, 10 ft. of water, 8.83 inches of Hg

4.33 psi, 10 ft. of water, 20.7 inches of Hg

10 psi, 19.7 ft. of water, 23.3 inches of Hg

10 psi, 19.7 ft. of water, 5.3 inches of Hg

✅ The correct answer is option A.

6533. Dimension of kinematic viscosity is

MLT⁻¹

L² . T⁻¹

L²T

L² . T⁻²

✅ The correct answer is option B.

6534. Slugging occurs in a fluidised bed, if the bed is

Narrow

Deep

Both A & B

Neither A nor B

✅ The correct answer is option C.

6535. Bernoulli’s equation is dependent on the

First law of thermodynamics

Third law of thermodynamics

Law of conservation of momentum

None of these

✅ The correct answer is option D.

6536. What is the speed of sound (m/sec) in ordinary water?

1500

330

1000

3000

✅ The correct answer is option A.

6537. Hydrometer measures the specific gravity of liquids based on the principles of buoyancy. Pycnometer is used to measure the specific gravity of

Powder & grannular solids

Liquids

Low melting point semi-solids

All of the above

✅ The correct answer is option D.

6538. Piezometric head is the sum of the __________ heads.

Elevation & kinetic energy

Elevation & pressure

Kinetic energy & pressure

None of these

✅ The correct answer is option B.

6539. The velocity distribution in direction normal to the direction of flow in plane Poiseuille flow is

Hyperbolic

Parabolic

Linear

None of these

✅ The correct answer is option B.

6540. Brownian movement is prominent in the particle size range of __________ microns in case of settling of a particle in a fluid.

2 to 3

0.01 to 0.10

200 to 300

100 to 1000

✅ The correct answer is option A.