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Fluid Mechanics

Fluid Mechanics
While starting an axial flow pump, its delivery valve should be kept

Open
Either open or closed
Closed
None of these

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

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

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Fluid Mechanics
In magnetic flow meters, voltage generation is

Both A and B
Proportional to the fluid velocity
Due to the motion of conducting fluid through an externally generated uniform field
Neither A nor B

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Fluid Mechanics
A fluid is pumped at the rate of 10 lb/sec to a height of 55 ft. The horse power required is __________ hp.

1
20090
5.5
20363

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Fluid Mechanics
The ratio of inertial forces to viscous forces is called the __________ number.

Froude
Reynold
Mach
Weber

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Fluid Mechanics
Reynolds number for flow of water at room temperature through 2 cm dia pipe at an average velocity of 5 cm/sec is around

10
1000
2000
100

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