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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 spherical particle is falling slow in a viscous liquid such that Reynolds number is less than 1. Which statement is correct for this situation ?

A Inertial and drag forces are important

B Drag, gravitational and buoyancy forces are important

C Drag force and gravitational forces are important

D None of the above

Review Detailed Answer

Correct Answer: Drag, gravitational and buoyancy forces are important

Isotropic turbulence occurs __________________?

A Where there is no velocity gradient

B At higher temperatures

C Only in Newtonian fluids

D None of these

Review Detailed Answer

Correct Answer: Where there is no velocity gradient

Specific speed of a centrifugal pump relates it with another pump having the___________________?

A Dynamic similarity

B Same efficiency

C Same speed

D Geometrical similarity

Review Detailed Answer

Correct Answer: Dynamic similarity

For flow through an orifice from a reservoir, the actual velocity at the vena contracta is given by _________________?

A √(2gh)

B C.V. √(2gh)

C Cd √(2gh)

D Cc √(2gh)

Review Detailed Answer

Correct Answer: √(2gh)

A special type of liquid transporting device is the diffuser pump, in which _____________ are minimised?

A Bearing losses

B Disk friction

C Shock losses

D Cavitation

Review Detailed Answer

Correct Answer: Shock losses

Vena-contracta pressure tapping is at a distance _______________ from the position of an orificemeter fitted in a pipe of internal diameter ‘d’ ?

A d

B 0.5 d

C 2d

D 4d

Review Detailed Answer

Correct Answer: d

Centre of pressure of a plane surface of arbitrary shape immersed vertically in a static mass of fluid________________?

A Lies above the centroid of the plane surface

B Is independent of the specific weight of the fluid

C Is different for different fluids

D Is at the centroid of the plane surface

Review Detailed Answer

Correct Answer: Is independent of the specific weight of the fluid

Manometers measure the ______________ pressure?

A Vacuum as well as the atmospheric

B Difference in

C Absolute

D Gage

Review Detailed Answer

Correct Answer: Difference in

Pitot tube measures the ______________ of a fluid?

A Pressure

B Average velocity

C Average flow rate

D Point velocity

Review Detailed Answer

Correct Answer: Point velocity

For motion of spherical particles in a stationary fluid, the drag co-efficient in hindered settling compared to that in free settling is _______________?

A More

B Less

C Equal

D More or less, depending on the type of particle

Review Detailed Answer

Correct Answer: More

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

A spherical particle is falling slow in a viscous liquid such that Reynolds number is less than 1. Which statement is correct for this situation ?

Isotropic turbulence occurs __________________?

Specific speed of a centrifugal pump relates it with another pump having the___________________?

For flow through an orifice from a reservoir, the actual velocity at the vena contracta is given by _________________?

A special type of liquid transporting device is the diffuser pump, in which _____________ are minimised?

Vena-contracta pressure tapping is at a distance _______________ from the position of an orificemeter fitted in a pipe of internal diameter ‘d’ ?

Centre of pressure of a plane surface of arbitrary shape immersed vertically in a static mass of fluid________________?

Manometers measure the ______________ pressure?

Pitot tube measures the ______________ of a fluid?

For motion of spherical particles in a stationary fluid, the drag co-efficient in hindered settling compared to that in free settling is _______________?