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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.

A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double___________________?

A Head

B Discharge

C Efficiency

D None of these

Review Detailed Answer

Correct Answer: Discharge

Check valves are used_______________?

A At high pressure

B In bends

C For controlling water flow

D For unidirectional flow

Review Detailed Answer

Correct Answer: For unidirectional flow

The temperature in isentropic flow_______________?

A Does not depend on Mach number

B Depends on Mach number only

C Cannot drop and then increase again downstream

D None of these

Review Detailed Answer

Correct Answer: Depends on Mach number only

Pipes having diameter 14 inches or more are designated by their_________________?

A Outside diameter

B Inside diameter

C Schedule number

D None of these

Review Detailed Answer

Correct Answer: Outside diameter

Speed of sound in an ideal gas depends on its________________?

A Temperature

B Pressure

C Specific volume

D None of these

Review Detailed Answer

Correct Answer: Temperature

For a given Reynold number as d/D for an orifice increases, Cd will (where, d & D are orifice & pipe diameters respectively)?

A Increase

B Decrease

C Remain constant

D Either A. or B.; depends on other factors

Review Detailed Answer

Correct Answer: Increase

The ratio of wall drag to total drag in the Stoke’s law range is_________________?

A 0.5

B 1

C 1/3

D 2/3

Review Detailed Answer

Correct Answer: 2/3

Turbulent flow generally occurs for cases involving__________________?

A Highly viscous fluid

B Very narrow passages

C Very slow motion

D None of these

Review Detailed Answer

Correct Answer: None of these

In an incompressible fluid, the density is____________________?

A Greatly affected by moderate changes in pressure

B Greatly affected only by moderate changes in temperature

C Not affected with moderate change in temperature & pressure

D Sensible to changes in both temperature & pressure

Review Detailed Answer

Correct Answer: Not affected with moderate change in temperature & pressure

Reciprocating pumps are not able to compete with the centrifugal pump for industrial use, mainly because these pumps have_____________?

A Very low speeds

B Smaller discharge

C Higher capital &maintenance cost

D High vibrations

Review Detailed Answer

Correct Answer: Higher capital &maintenance cost

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double___________________?

Check valves are used_______________?

The temperature in isentropic flow_______________?

Pipes having diameter 14 inches or more are designated by their_________________?

Speed of sound in an ideal gas depends on its________________?

For a given Reynold number as d/D for an orifice increases, Cd will (where, d & D are orifice & pipe diameters respectively)?

The ratio of wall drag to total drag in the Stoke’s law range is_________________?

Turbulent flow generally occurs for cases involving__________________?

In an incompressible fluid, the density is____________________?

Reciprocating pumps are not able to compete with the centrifugal pump for industrial use, mainly because these pumps have_____________?