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Hydraulics and Fluid Mechanics in ME

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

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Hydraulics and Fluid Mechanics in ME
For hydro-dynamically smooth boundary, the friction coefficient for turbulent flow is

dependent only on Reynolds number
constant
a function of Reynolds number and relative roughness
dependent on relative roughness only

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Hydraulics and Fluid Mechanics in ME
Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of

Lower discharge
High initial and maintenance cost
Lower speed of operation
Necessity of air vessel

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

Gear pump
Screw pump
Plunger pump
Cam and piston pump

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Hydraulics and Fluid Mechanics in ME
Which of the following instruments is used to measure flow on the application of Bernoulli’s theorem

Venturimeter
All of these
pitot tube
Orifice plate

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Hydraulics and Fluid Mechanics in ME
The gross or total head of the turbine is the ___________ of the water levels at the head race and tail race.

Sum
Product
Difference
None of these

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