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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.

Hydraulic mean radius for flow through packed bed of spherical particle of size, ‘Dp, with porosity ‘ε’ is________________?

A (Dp/6) (ε/1- ε)

B (Dp/6) (1- ε/ε)

C ⅔Dp (1- ε/ε)

D ⅔Dp (ε/1- ε)

Review Detailed Answer

Correct Answer: (Dp/6) (ε/1- ε)

The pressure intensity is the same in all directions at a point in a fluid________________?

A Only when the fluid is frictionless

B Only when the fluid is at rest having zero velocity

C When there is no motion of one fluid layer relative to an adjacent layer

D Regardless of the motion of one fluid layer relative to an adjacent layer

Review Detailed Answer

Correct Answer: When there is no motion of one fluid layer relative to an adjacent layer

Hot wire anemometer is used to measure the_________________?

A Velocity of liquids

B Temperature of liquids

C Velocity of gases

D Pressure of liquids

Review Detailed Answer

Correct Answer: Velocity of gases

The peripheral velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec?

A 1.8

B 12.4

C 186.2

D 736.4

Review Detailed Answer

Correct Answer: 12.4

The fluid velocity varies as the cube of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop for ____________ fluid?

A Newtonian

B Pseudo-plastic

C Dilatent

D Bingham plastic

Review Detailed Answer

Correct Answer: Pseudo-plastic

Quicksand is an example of a __________ fluid?

A Bingham plastic

B Dilatant

C Newtonian

D Pseudo plastic

Review Detailed Answer

Correct Answer: Dilatant

Design of the casing of centrifugal pump should be such as to minimise the________________?

A Back flow through impeller

B Loss of kinetic head

C Loss of static head

D None of these

Review Detailed Answer

Correct Answer: Loss of kinetic head

Drag co-efficient CD, in Stoke’s law range is given by________________?

A CD = 16/Re.p

B CD = 24/Re.p

C CD = 18.4/Re.p

D CD = 0.079/Re

Review Detailed Answer

Correct Answer: CD = 24/Re.p

If three pipes of different diameters, lengths & friction factors are connected in parallel, then (where, Q = flow rate, V= fluid velocity f = friction factor). ?

A Q = Q1 + Q2 + Q3

B V1 = V2 = V3

C Q1 = Q2 = Q3

D f = f1 + f2 + f3

Review Detailed Answer

Correct Answer: Q = Q1 + Q2 + Q3

The valve used for very remote and accurate control of fluid is a _____________ valve?

A Needle

B Globe

C Gate

D Butterfly

Review Detailed Answer

Correct Answer: Needle

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Hydraulic mean radius for flow through packed bed of spherical particle of size, ‘Dp, with porosity ‘ε’ is________________?

The pressure intensity is the same in all directions at a point in a fluid________________?

Hot wire anemometer is used to measure the_________________?

The peripheral velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec?

The fluid velocity varies as the cube of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop for ____________ fluid?

Quicksand is an example of a __________ fluid?

Design of the casing of centrifugal pump should be such as to minimise the________________?

Drag co-efficient CD, in Stoke’s law range is given by________________?

If three pipes of different diameters, lengths & friction factors are connected in parallel, then (where, Q = flow rate, V= fluid velocity f = friction factor). ?

The valve used for very remote and accurate control of fluid is a _____________ valve?