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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.

For Laminar flow through a packed bed, the pressure drop is proportional to (Vs is the superficial liquid velocity and Dp is the particle diameter) ?

A Vs/Dp2

B Vs2/Dp2

C Vs2/Dp3

D Vs/Dp3

Review Detailed Answer

Correct Answer: Vs/Dp2

Vena-contracta formed during flow of a liquid through an orificemeter has__________________?

A Minimum liquid cross-section

B More diameter compared to orifice diameter

C Minimum velocity of fluid stream

D None of these

Review Detailed Answer

Correct Answer: Minimum liquid cross-section

The pitot static tube does not measure the _____________ pressure?

A Static

B Total

C Difference in static & dynamic

D All A., B. and C.

Review Detailed Answer

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

The unit of dynamic viscosity in SI unit is__________________?

A kg/m. sec

B N/m2

C m2 /sec

D m/N. sec

Review Detailed Answer

Correct Answer: kg/m. sec

Power loss in an orificemeter is _____________ that in a Venturimeter?

A Less than

B Same as

C More than

D Data insufficient, cannot be predicted

Review Detailed Answer

Correct Answer: More than

Which of the following has the minimum compressibility ?

A Water at room temperature

B Air at room temperature

C Oxygen at room temperature

D Nitrogen at room temperature

Review Detailed Answer

Correct Answer: Water at room temperature

Nominal size of the discharge pipe of a pump is usually _____________ the nominal size of the inlet pipe?

A Smaller than

B Larger than

C Same as

D Twice

Review Detailed Answer

Correct Answer: Smaller than

The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the_________________?

A Discharge

B Suction

C Suction minus vapor pressure of the liquid at suction temperature

D Discharge minus vapor pressure of the liquid at the discharge temperature

Review Detailed Answer

Correct Answer: Suction

Boundary layer thickness in turbulent flow over a flat plate increases as(where, d = distance from the leading edge.) ?

A √d

B d2/3

C d4/5

D d1/3

Review Detailed Answer

Correct Answer: d4/5

Mach number is important in a fluid flow problem, when the inertia and _____________ forces predominate?

A Elastic

B Viscous

C Gravity

D None of these

Review Detailed Answer

Correct Answer: Elastic

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

For Laminar flow through a packed bed, the pressure drop is proportional to (Vs is the superficial liquid velocity and Dp is the particle diameter) ?

Vena-contracta formed during flow of a liquid through an orificemeter has__________________?

The pitot static tube does not measure the _____________ pressure?

The unit of dynamic viscosity in SI unit is__________________?

Power loss in an orificemeter is _____________ that in a Venturimeter?

Which of the following has the minimum compressibility ?

Nominal size of the discharge pipe of a pump is usually _____________ the nominal size of the inlet pipe?

The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the_________________?

Boundary layer thickness in turbulent flow over a flat plate increases as(where, d = distance from the leading edge.) ?

Mach number is important in a fluid flow problem, when the inertia and _____________ forces predominate?