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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A flow whose streamline is represented by a curve, is called

One-dimensional flow
Two-dimensional flow
Four-dimensional flow
Three-dimensional flow

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Hydraulics and Fluid Mechanics in ME
The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s)

w × Q × hf
w × Q (H + hf)
w × Q (H - hf)
w × Q × H

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Hydraulics and Fluid Mechanics in ME
Stoke is the unit of

Kinematic viscosity in M. K. S. units
Dynamic viscosity in M. K. S. units
Dynamic viscosity in S. I. units
Kinematic viscosity in C. G. S. units

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Hydraulics and Fluid Mechanics in ME
Which type of the pump is different from others in the same group?

Cam and piston pump
Screw pump
Gear pump
Plunger pump

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Hydraulics and Fluid Mechanics in ME
Two pipe systems can be said to be equivalent, when the following quantites are same

length and diameter
friction loss and flow
flow and length
friction factor and diameter

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Hydraulics and Fluid Mechanics in ME
The cavitation in a hydraulic machine

Causes sudden drop in power output and efficiency
Causes noise and vibration of various parts
Reduces the discharge of a turbine
All of these

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