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Fluid Mechanics

Fluid Mechanics
A hydraulic ram acts as a/an __________ pump.

Parallel cylinder
Impulse
Reciprocating
Centrifugal

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Fluid Mechanics
Specific speed of a centrifugal pump relates it with another pump having the

Geometrical similarity
Same efficiency
Dynamic similarity
Same speed

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Fluid Mechanics
Transition from laminar flow to turbulent flow is aided by the

Vibration
Surface roughness and curvature (i.e.sharp corners)
All of these
Pressure gradient and the compressibility of the flowing medium

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Fluid Mechanics
The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10⁻⁶m²/s).

24000
0.44
24
0.24

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Fluid Mechanics
Schedule number of a pipe, which is a measure of its wall thickness, is given by

100 P'/S
10000 P'/S
1000 S/P'
1000 P'/S

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Fluid Mechanics
Terminal velocity is

Attained after moving one-half of total distance
None of these
A constant velocity with no acceleration
A fluctuating velocity

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MORE MCQ ON Fluid Mechanics

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