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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

Priming of a centrifugal pump is done to___________________?
A Increase the mass flow rate of fluid
B Develop effective pressure rise by the pump
C Avoid chances of separation inside the impeller
D None of these
Correct Answer: Avoid chances of separation inside the impeller
Pick out the wrong statement pertaining to fluid flow ?
A The ratio of average velocity to the maximum velocity for turbulent flow of Newtonian fluid
B The Newtonian fluid velocity in a circular pipe flow is maximum at the centre of the pipe
C Navier-Stokes equation is applicable to the analysis of viscous flows
D Hagen-Poiseuille equation is applicable to the laminar flow of Newtonian fluids
Correct Answer: The ratio of average velocity to the maximum velocity for turbulent flow of Newtonian fluid
The ratio of the wall drag to the form drag in the Stoke’s law range (for motion of spherical particles in a stationary fluid) is__________________?
A 0.5
B 1
C 2
D 0.33
Correct Answer: 2
The discharge through a Venturimeter depends upon _________________?
A Pressure drop only
B Its orientation
C Co-efficient of contraction only
D None of these
Correct Answer: Pressure drop only
The head loss due to sudden expansion is__________________?
A (V12 – V22)/2gc
B (V1 – V2)2/2gc
C (V1 – V2)/2gc
D (V12 – V22)/gc
Correct Answer: (V1 – V2)2/2gc
Which of the following two quantities when same, makes one pipe system equivalent to another pipe system ?
A Head & discharge
B Length & discharge
C Length & diameter
D Friction factor & diameter
Correct Answer: Head & discharge
Choose the correct set of dimensions of viscosity that are equivalent (where, F, M, L, T are dimensions for force, mass, length and time respectively) ?
A FL-2T, ML-1T-1
B FLT, ML-1T-1
C ML-1T-3, F-1L2T
D F-1L2T-1, MLT-3
Correct Answer: FL-2T, ML-1T-1
Small pressure differences in liquids is measured using a/an__________________?
A U-tube manometer
B Inclined tube manometer
C Pitot tube
D None of these
Correct Answer: Inclined tube manometer
Two dimensional stream function________________?
A Relates velocity and pressure
B Is constant along a stream line
C Is constant along an equipotential surface
D None of these
Correct Answer: Is constant along a stream line
The pressure drop per unit length of pipe incurred by a fluid ‘X’ flowing through pipe is Δp. If another fluid ‘Y’ having both the specific gravity & density just double of that of fluid ‘X’, flows through the same pipe at the same flow rate/average velocity, then the pressure drop in this case will be__________________?
A Δp
B 2Δp
C Δp2
D Δp/2
Correct Answer: Δp
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