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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.

Ratio of pressure and inertia force gives ______________ number?

A Weber

B Mach

C Euler

D Froude

Review Detailed Answer

Correct Answer: Euler

Most commonly used joint in the underground pipe lines is the________________?

A Sleeve joint

B Coupling

C Flange

D Expansion joint

Review Detailed Answer

Correct Answer: Sleeve joint

Gear pump_________________?

A Is a positive displacement pump

B Is a centrifugal pump

C Is a non-positive displacement pump

D Can be started with delivery valve closed

Review Detailed Answer

Correct Answer: Is a positive displacement pump

For a particle settling in water at its terminal settling velocity, which of the following is true ?

A Buoyancy = weight + drag

B Weight = buoyancy + drag

C Drag = buoyancy + weight

D Drag = weight

Review Detailed Answer

Correct Answer: Weight = buoyancy + drag

In a fully turbulent flow (Re > 105) in a pipe of diameter ‘d’, for a constant pressure gradient, the dependence of volumetric flow rate of an incompressible fluid is_______________?

A d

B d2

C d2.5

D d4

Review Detailed Answer

Correct Answer: d

______________ pumps are axial flow pumps?

A Turbine

B Propeller

C Diffuser

D None of these

Review Detailed Answer

Correct Answer: Propeller

Which of the following equations as suggested by Colebrook and White gives the increase in roughness of a new surface (ε0) with age/time (t) (where, ε = roughness of the surface after time’t’. α = a co-efficient to be experimentally determined) ?

A ε = ε0 + α.t

B ε = ε0 + α.t2

C ε = ε0 + α.t3

D ε = ε0 + α.t4

Review Detailed Answer

Correct Answer: ε = ε0 + α.t

The ratio of the depth of flow to the hydraulic radius for the most economical trapezoidal section, in open channel flow is_____________________?

A 0.5

B 1

C 1.5

D 2

Review Detailed Answer

Correct Answer: 2

Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will______________________?

A Increase

B Decrease

C Remain same

D Data insufficient to predict pressure drop

Review Detailed Answer

Correct Answer: Increase

Which of the following denotes the effect of compressibility in fluid flow ?

A Weber number

B Mach number

C Euler number

D Reynolds number

Review Detailed Answer

Correct Answer: Mach number

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Ratio of pressure and inertia force gives ______________ number?

Most commonly used joint in the underground pipe lines is the________________?

Gear pump_________________?

For a particle settling in water at its terminal settling velocity, which of the following is true ?

In a fully turbulent flow (Re > 105) in a pipe of diameter ‘d’, for a constant pressure gradient, the dependence of volumetric flow rate of an incompressible fluid is_______________?

______________ pumps are axial flow pumps?

Which of the following equations as suggested by Colebrook and White gives the increase in roughness of a new surface (ε0) with age/time (t) (where, ε = roughness of the surface after time’t’. α = a co-efficient to be experimentally determined) ?

The ratio of the depth of flow to the hydraulic radius for the most economical trapezoidal section, in open channel flow is_____________________?

Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will______________________?

Which of the following denotes the effect of compressibility in fluid flow ?