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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

The pressure and power requirement of a gas fan at constant speed & capacity varies ____________ the gas density?
A Directly as
B Inversely as square root of
C Inversely as
D As square of
Correct Answer: Directly as
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
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