Fluid Mechanics for Chemical MCQs

724 MCQs  — Chemical Engineering MCQs  (Page 48 of 73)

Attempt Fluid Mechanics for Chemical Quiz
Which of the following pipe bends will incur the largest head loss ?
A. U-bend
B. 30° bend
C. 45° bend
D. 90° bend
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Which of the fluid forces are not considered in the Reynold’s equation of flow ?
A. Viscous forces
B. Turbulent forces
C. Pressure forces
D. Compressibility forces
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Bernoulli‟s equation does not apply to the functioning of a/an__________________?
A. Venturimeter
B. Orificemeter
C. Pitot tube
D. None of these
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Rotary vacuum pumps can reduce the absolute pressure to as low as __________ mm Hg ?
A. 1
B. 0.1
C. 0.01
D. 0.001
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In fluid flow, the boundary layer separation cannot occur___________________?
A. In case of boundaries experiencing form drag
B. At points of abrupt changes in the flow directions
C. In laminar flow
D. None of these
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If more than two branches of pipes are to be connected at the same point, then use a/an_________________?
A. Elbow
B. Union
C. Tee
D. None of these
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Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the___________________?
A. Pipe length
B. Fluid velocity in the pipe
C. Time taken to close the valve
D. All a., b. and c.
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A mono pump is a __________ pump ?
A. Centrifugal
B. Piston
C. Positive acting rotary
D. A group of vacuum
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For pipes that must be broken at intervals for maintenance, the connector used should be a/an__________________?
A. Union
B. Tee
C. Reducer
D. Elbow
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The terminal velocity of a small sphere settling in a viscous fluid varies as the___________________?
A. First power of its diameter
B. Inverse of the fluid viscosity
C. Inverse square of the diameter
D. Square of the difference in specific weights of solid & fluid
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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