Fluid Mechanics for Chemical MCQs

724 MCQs  — Chemical Engineering MCQs  (Page 65 of 73)

Attempt Fluid Mechanics for Chemical Quiz
Location of vena-contracta in an orificemeter does not depend upon the________________?
A. Type of orifice
B. Density, viscosity & compressibility of the fluid
C. Ratio of pipe diameter to orifice diameter
D. Pipe roughness
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Path followed by water jet issuing from the bottom of a water tank will be a__________________?
A. Parabola (vertex being at the opening)
B. Hyperbola
C. Horizontal straight line
D. Zig-zag path (which is geometrically undefined)
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For flow past a flat plate, if „x‟ is the distance along the plate in the direction of flow, the boundary layer thickness is proportional to________________?
A. √x
B. 1/√x
C. X
D. 1/x
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The unit of bulk modulus of elasticity for a liquid in S.I. unit is____________________?
A. N
B. N/m
C. N/m2
D. N/m3
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It is possible to integrate an automatic flow controller to a________________?
A. Flow nozzle
B. Venturimeter
C. Rotameter
D. None of these
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Friction factor for a hydraulically smooth pipe at NRe = 2100 is f1. If the pipe is further smoothened (i.e., roughness is reduced), the friction factor at the same value of NRe, will_______________?
A. Increase
B. Decrease
C. Remain unchanged
D. Increase or decrease depending on the pipe material
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The dimension of surface tension is________________?
A. Ml-2
B. Mt-2
C. Mlt-2
D. Ml-2t
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N. second/m2 is___________________?
A. The s.i. unit of dynamic viscosity
B. The s.i. unit of kinematic viscosity
C. Equivalent to one posie
D. Equivalent to one stoke
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Water flow rate in a pipe of 3.5 metres diameter can be most economically and conveniently measured by a/an ________________?
A. Pitot tube
B. Venturimeter
C. Orificemeter
D. Rotameter
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Maintenance cost of a ______________ pump for a particular duty is the least?
A. Centrifugal
B. Reciprocating
C. Volute
D. Gear
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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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