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.Management Sciences
Category: Fluid Mechanics for Chemical
Fluid flow in a/an ______________ is an example of pressure flow?
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A. Partially filled pipeline
B. Pipe
C. Open channel
D. River
The energy loss over a length of pipeline according to Darcy-Weisbach equation for pipe flow is _______________ the mean velocity of flow?
A. Directly proportional to
B. Directly proportional to square of
C. Inversely proportional to
D. Inversely proportional to square of
Deformation drag, which is caused by widespread deformation of fluid around the immersed body____________________?
A. Occurs when NRe is very small
B. Is primarily a friction drag
C. Is independent of body length
D. Depends mainly on cross-sectional shape
What is the ratio of fluid carrying capacity of two pipes having diameters d1 and d2 respectively ?
A. (d1/d2)0.8
B. (d1/d2)0.5
C. d1/d2
D. (d1/d2)2
Pressure drop for laminar fluid flow through a circular pipe is given by__________________?
A. 4f (L/D) (v2/2gc) ρ
B. 32 (μLV/gc D2)
C. 16/NRe
D. (fLρ/D) (v2/2gc)
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
Each term of the Bernoulli’s equation written in the form, (p/ρ) + (g/gc). Z + (v2/2gc) = constant, represents the total energy per unit ________________?
A. Mass
B. Volume
C. Specific weight
D. None of these
Hydraulic diameter for non-circular ducts is equal to ___________ times the area of flow divided by the perimeter?
A. Two
B. Three
C. Four
D. Eight
Which of the following is not concerned with the fluid-particle interaction ?
A. Drag co-efficient
B. Froude number
C. Galileo number
D. Weber number
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