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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

In parallel pipe problems, the__________________?

A Head loss is the same through each pipe

B Discharge is the same through all the pipes

C Total head loss is equal to the sum of the head losses through each pipe

D None of these

Review Detailed Answer

Correct Answer: Head loss is the same through each pipe

In Newton’s law range, the drag co-efficient for the motion of spherical particle in a stationary fluid is___________________?

A 0.44

B 0.044

C 4.4

D 44

Review Detailed Answer

Correct Answer: 0.44

For turbulent flow of Newtonian fluid in a circular cross-section pipe, the ratio of maximum to average fluid velocity is ________________?

A 0.5

B 1

C 0.66

D < 0.5

Review Detailed Answer

Correct Answer: 1

What is the shear rate at the pipe wall, in case of laminar flow of Newtonian fluids in a pipe of diameter ‘D’ & length ‘L’ incurring a pressure drop ‘Δp’ with average velocity ‘Vavg’ ?

A D Δp/8L

B D Δp/4L

C 8 Vavg/D

D 4 Vavg/D

Review Detailed Answer

Correct Answer: 8 Vavg/D

For laminar flow of Newtonian fluid in a circular pipe, the velocity distribution is a function of the distance ‘d’ measured from the centre line of the pipe, and it follows a ______________ relationship?

A Logarithmic

B Parabolic

C Hyperbolic

D Linear

Review Detailed Answer

Correct Answer: Parabolic

For laminar flow of a fluid through a packed bed of spheres of diameter d, the pressure drop per unit length of bed depends upon the sphere diameter as_________________?

A d

B d2

C d4

D d̅ 2

Review Detailed Answer

Correct Answer: d

Which is the most efficient and best for measuring very small flow rate of gases ?

A Venturimeter

B Orificemeter

C Rotameter

D Flow nozzle

Review Detailed Answer

Correct Answer: Rotameter

Newton’s law of viscosity relates the____________________?

A Shear stress and velocity

B Velocity gradient and pressure intensity

C Shear stress and rate of angular deformation in a fluid

D Pressure gradient and rate of angular deformation

Review Detailed Answer

Correct Answer: Shear stress and rate of angular deformation in a fluid

Horsepower increase of a centrifugal gas compressor without altering the volumetric flow rate will _____________ the gas discharge pressure?

A Increase

B Decrease

C Not change

D Exponentially decrease

Review Detailed Answer

Correct Answer: Increase

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

A Irrotational

B Incompressible

C Viscous

D All A., B. & C.

Review Detailed Answer

Correct Answer: All A., B. & C.

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

In parallel pipe problems, the__________________?

In Newton’s law range, the drag co-efficient for the motion of spherical particle in a stationary fluid is___________________?

For turbulent flow of Newtonian fluid in a circular cross-section pipe, the ratio of maximum to average fluid velocity is ________________?

What is the shear rate at the pipe wall, in case of laminar flow of Newtonian fluids in a pipe of diameter ‘D’ & length ‘L’ incurring a pressure drop ‘Δp’ with average velocity ‘Vavg’ ?

For laminar flow of Newtonian fluid in a circular pipe, the velocity distribution is a function of the distance ‘d’ measured from the centre line of the pipe, and it follows a ______________ relationship?

For laminar flow of a fluid through a packed bed of spheres of diameter d, the pressure drop per unit length of bed depends upon the sphere diameter as_________________?

Which is the most efficient and best for measuring very small flow rate of gases ?

Newton’s law of viscosity relates the____________________?

Horsepower increase of a centrifugal gas compressor without altering the volumetric flow rate will _____________ the gas discharge pressure?

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