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.

Which of the following is a dimensionless parameter ?
A Angular velocity
B Specific weight
C Kinematic viscosity
D None of these
Correct Answer: None of these
The pump impeller and the turbine runner in a hydraulic torque converter___________________?
A Have the same diameter
B Have different diameters
C Are directly coupled
D None of these
Correct Answer: Have different diameters
Deformation drag, which is caused by widespread deformation of fluid around the immersed body____________________?
A Occurs when NRe is very small
B Is primarily a friction drag
C Is independent of body length
D Depends mainly on cross-sectional shape
Correct Answer: Occurs when NRe is very small
With diminishing cross-sectional area in case of subsonic flow in a converging nozzle, the____________________?
A Velocity increases
B Pressure decreases
C Both A. & B.
D Neither A. nor B.
Correct Answer: Both A. & B.
A streamline is_________________?
A The line connecting the mid-points of flow cross-sections
B Defined for uniform flow only
C Drawn normal to the velocity vector at every point
D Always the path of a particle
Correct Answer: Drawn normal to the velocity vector at every point
What causes convective acceleration in fluid flow ?
A Steep slope in flow
B Unsteady nature of flow
C Non-uniformity of flow
D Turbulence in flow
Correct Answer: Non-uniformity of flow
Each term of the Bernoulli’s equation written in the form, (p/ρ) + (g/gc). Z + (v2/2gc) = constant, represents the total energy per unit ________________?
A Mass
B Volume
C Specific weight
D None of these
Correct Answer: Mass
Draining of shallow pits or sump is done by a sump pump, which is a ______________ pump?
A Single stage vertical
B Centrifugal
C Plunger
D Diffuser
Correct Answer: Single stage vertical
In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant ?
A Rotational
B Unsteady
C Turbulent
D Non-uniform
Correct Answer: Non-uniform
Which of the following is the „Blasius equation‟, relating friction factor to the Reynolds number ?
A f = 0.079.NRe-0.25
B f-0.5 = 4.07 loge (NRef)-0.6
C Both ‘a’ and ‘b’
D None of these
Correct Answer: f = 0.079.NRe-0.25