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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.

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

What is the ratio of fluid carrying capacity of two pipes having diameters d1 and d2 respectively ?

A (d1/d2)0.8

B (d1/d2)0.5

C d1/d2

D (d1/d2)2

Review Detailed Answer

Correct Answer: (d1/d2)0.5

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

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?

What is the ratio of fluid carrying capacity of two pipes having diameters d1 and d2 respectively ?