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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

Isotropic turbulence occurs __________________?
A Where there is no velocity gradient
B At higher temperatures
C Only in Newtonian fluids
D None of these
Correct Answer: Where there is no velocity gradient
Specific speed of a centrifugal pump relates it with another pump having the___________________?
A Dynamic similarity
B Same efficiency
C Same speed
D Geometrical similarity
Correct Answer: Dynamic similarity
For flow through an orifice from a reservoir, the actual velocity at the vena contracta is given by _________________?
A √(2gh)
B C.V. √(2gh)
C Cd √(2gh)
D Cc √(2gh)
Correct Answer: √(2gh)
A special type of liquid transporting device is the diffuser pump, in which _____________ are minimised?
A Bearing losses
B Disk friction
C Shock losses
D Cavitation
Correct Answer: Shock losses
Vena-contracta pressure tapping is at a distance _______________ from the position of an orificemeter fitted in a pipe of internal diameter ‘d’ ?
A d
B 0.5 d
C 2d
D 4d
Correct Answer: d
Centre of pressure of a plane surface of arbitrary shape immersed vertically in a static mass of fluid________________?
A Lies above the centroid of the plane surface
B Is independent of the specific weight of the fluid
C Is different for different fluids
D Is at the centroid of the plane surface
Correct Answer: Is independent of the specific weight of the fluid
Manometers measure the ______________ pressure?
A Vacuum as well as the atmospheric
B Difference in
C Absolute
D Gage
Correct Answer: Difference in
Pitot tube measures the ______________ of a fluid?
A Pressure
B Average velocity
C Average flow rate
D Point velocity
Correct Answer: Point velocity
For motion of spherical particles in a stationary fluid, the drag co-efficient in hindered settling compared to that in free settling is _______________?
A More
B Less
C Equal
D More or less, depending on the type of particle
Correct Answer: More
What causes cavitation in centrifugal pump ?
A High suction pressure
B Low barometric pressure
C Low suction pressure
D High suction velocity
Correct Answer: Low suction pressure
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