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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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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.

All Topics  9594

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
Correct Answer: (d1/d2)0.5
Momentum transfer in laminar flow of fluids results due to the_________________?
A Viscosity
B Density
C Velocity gradient
D None of these
Correct Answer: Velocity gradient
Cavitation in a centrifugal pump can be avoided by keeping the__________________?
A Inlet pressure high
B Outlet pressure low
C Inlet pressure low
D Outlet pressure high
Correct Answer: Inlet pressure high
Stoke’s law is valid, when NRe, p is less than_________________?
A 2
B 100
C 2100
D 700
Correct Answer: 2
Gradually varied flow in open channel is a/an ____________ flow?
A Steady uniform
B Steady non-uniform
C Unsteady uniform
D Unsteady non-uniform
Correct Answer: Steady non-uniform
In case of supersonic flow of a fluid through pipeline, the ‘Mach number’ is__________________?
A 0
B 1
C < 1
D > 1
Correct Answer: 1
The flow of gas along a pipe in the direction of decreasing pressure causes decrease in its__________________?
A Viscosity
B Specific volume
C Velocity
D None of these
Correct Answer: Specific volume
The continuity equation__________________?
A Relates mass flow rate along a stream tube
B Relates work and energy
C Stipulates that Newton’s second law of motion must be satisfied at every point in the fluid
D None of these
Correct Answer: Relates mass flow rate along a stream tube
A fluid is a substance, that_________________?
A Has to be kept in a closed container
B Is almost incompressible
C Has zero shear stress
D Flows when even a small shear is applied to it
Correct Answer: Flows when even a small shear is applied to it
The schedule number of a pipe is an indication of its_________________?
A Size
B Roughness
C Material density
D Wall thickness
Correct Answer: Wall thickness
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