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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.

What causes cavitation in centrifugal pump ?

A High suction pressure

B Low barometric pressure

C Low suction pressure

D High suction velocity

Review Detailed Answer

Correct Answer: Low suction pressure

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

A Powder & granular solids

B Liquids

C Low melting point semi-solids

D All A, B & C

Review Detailed Answer

Correct Answer: All A, B & C

Volume of liquid displaced by a floating body is equivalent to its_________________?

A Own weight

B Submerged weight

C Own volume

D Submerged volume

Review Detailed Answer

Correct Answer: Own weight

The pressure at a point in a fluid is not the same in all directions, when the fluid is viscous and___________________?

A Moving

B Static

C Cold

D Hot

Review Detailed Answer

Correct Answer: Moving

The time taken for gravity flow of a fixed volume of liquid (as in Redwood viscometer) is directly proportional to its __________________?

A Absolute viscosity

B Ratio of absolute viscosity to density

C Density

D Reynolds number

Review Detailed Answer

Correct Answer: Ratio of absolute viscosity to density

The co-efficient of drag and lift for an incompressible fluid depends on the_________________?

A Reynolds number

B Froude number

C Mach number

D All A., B. and C.

Review Detailed Answer

Correct Answer: Reynolds number

The kinetic energy correction factor for velocity distribution of laminar flow is_________________?

A 0.5

B 1.66

C 1

D 2

Review Detailed Answer

Correct Answer: 1.66

A centrifugal pump loses prime after starting. The reason of this trouble may be_____________________?

A Incomplete priming

B Too high a suction lift

C Low available NPSH and air leaks in the suction pipe

D All A., B., and C.

Review Detailed Answer

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

Venturimeters, orificemeters and nozzles are used to measure the fluid discharge from a pipeline. The average fluid velocity in a pipeline can be measured by a/an________________?

A Weir

B Hot wire anemometer

C Cup and vane anemometer

D None of these

Review Detailed Answer

Correct Answer: Hot wire anemometer

The fluid property which matters for falling rain drops to acquire spherical shape is its__________________?

A Pressure

B Height of descend

C Viscosity

D Surface tension

Review Detailed Answer

Correct Answer: Surface tension

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

What causes cavitation in centrifugal pump ?

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

Volume of liquid displaced by a floating body is equivalent to its_________________?

The pressure at a point in a fluid is not the same in all directions, when the fluid is viscous and___________________?

The time taken for gravity flow of a fixed volume of liquid (as in Redwood viscometer) is directly proportional to its __________________?

The co-efficient of drag and lift for an incompressible fluid depends on the_________________?

The kinetic energy correction factor for velocity distribution of laminar flow is_________________?

A centrifugal pump loses prime after starting. The reason of this trouble may be_____________________?

Venturimeters, orificemeters and nozzles are used to measure the fluid discharge from a pipeline. The average fluid velocity in a pipeline can be measured by a/an________________?

The fluid property which matters for falling rain drops to acquire spherical shape is its__________________?