M C Q s D r i v e

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.

Pressure drag does not depend upon the_________________?
A Roughness of surface of the body
B Pressure of main flow only
C Length of the body in flow direction
D All A., B. and C.
Correct Answer: All A., B. and C.
With increase in pump speed, its NPSH requirement_________________?
A Decreases
B Increases
C Remains unaltered
D Can either increase or decrease; depends on other factors
Correct Answer: Increases
The fluid in which the shearing stress within it is proportional to the velocity gradient across the sheared section, is called a _____________ fluid?
A Bingham
B Newtonian
C Perfect
D None of these
Correct Answer: Newtonian
Nominal size of a pipe is an indication of its ______________ diameter?
A Inner
B Outer
C Approximate
D None of these
Correct Answer: Approximate
The velocity profile for turbulent flow through a closed conduit is_______________?
A Logarithmic
B Parabolic
C Hyperbolic
D Linear
Correct Answer: Logarithmic
Brownian movement is prominent in the particle size range of _____________ microns in case of settling of a particle in a fluid?
A 2 to 3
B 0.01 to 0.10
C 200 to 300
D 100 to 1000
Correct Answer: 2 to 3
A fluid is the one, which___________________?
A Cannot remain at rest under the action of shear force
B Continuously expands till it fills any container
C Is incompressible
D Permanently resists distortion
Correct Answer: Cannot remain at rest under the action of shear force
Which of the following is not a dimension-less parameter ?
A Euler number
B Specific gravity
C Fanning friction factor
D None of these
Correct Answer: None of these
Steady uniform flow is represented by flow through a/an ___________________?
A Long pipe at constant rate
B Long pipe at decreasing rate
C Expanding tube at constant rate
D None of these
Correct Answer: Long pipe at constant rate
With increasing flow rate, the hydraulic efficiency of a centrifugal pump__________________?
A Monotonically decreases
B Decreases and then increases
C Remains constant
D Increases and then decreases
Correct Answer: Monotonically decreases