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.

A centrifugal pump designed to pump water is employed to pump a more viscous oil. In the later case, the pump_________________?
A Develops a lower head
B Capacity is reduced
C Requires more power
D All A., B. and C.
Correct Answer: All A., B. and C.
A 2″ gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is__________________?
A Δp
B < Δp
C > Δp
D Δp2
Correct Answer: Δp
The co-efficient of discharge of an orificemeter is a function of ________________?
A Reynolds number at the orifice
B Ratio of orifice dia to pipe dia
C Both A. and B.
D None of the above parameters, and has a constant value of 0.61
Correct Answer: Both A. and B.
A streamline is a line in flow field _________________?
A That is traced by all the fluid particles passing through a given point
B Along which a fluid particle travels
C Such that at every point on it, the velocity is tangential to it
D None of these
Correct Answer: Such that at every point on it, the velocity is tangential to it
Bernoulli’s equation for steady, frictionless, continuous flow states that the ______________ at all sections is same?
A Total pressure
B Total energy
C Velocity head
D None of these
Correct Answer: Total energy
In turbulent flow, the__________________?
A Fluid particles move in an orderly manner
B Momentum transfer is on molecular scale only
C Shear stress is caused more effectively by cohesion than momentum transfer
D Shear stresses are generally larger than in a similar laminar flow
Correct Answer: Shear stresses are generally larger than in a similar laminar flow
Check valve is used for ________________ flow?
A Very precise control of
B Unidirectional
C Multidirectional
D None of these
Correct Answer: Unidirectional
Froude number is not a factor__________________?
A For Reynolds number greater than 300
B When there is no vortex formation
C For unbaffled tank
D None of these
Correct Answer: When there is no vortex formation
To handle smaller quantity of fluid at higher discharge pressure, use a ______________ pump?
A Reciprocating
B Centrifugal
C Volute
D Rotary vacuum
Correct Answer: Reciprocating
The discharge through a rectangular weir varies as ___________________?
A H1/2
B H5/2
C H2/5
D H3/2
Correct Answer: H3/2