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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge in an open channel corresponding to critical depth is

None of these
Zero
Maximum
Minimum

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Hydraulics and Fluid Mechanics in ME
In a static fluid

Linear deformation is small
Fluid pressure is zero
Resistance to shear stress is small
Only normal stresses can exist

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Hydraulics and Fluid Mechanics in ME
To avoid an interruption in the flow of a siphon, an air vessel is provided

At the summit
At the inlet
At any point between inlet and outlet
At the outlet

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Hydraulics and Fluid Mechanics in ME
Theoretical power required (in watts) to drive a reciprocating pump is (where w = Specific weight of liquid to be pumped in N/m3, Q = Discharge of the pump in m3/s, Hs = Suction head in meters, and Hd = Delivery head in meters)

wQHs
wQ (Hs + Hd)
wQHd
wQ (Hs - Hd)

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Hydraulics and Fluid Mechanics in ME
The specific gravity of an oil whose specific weight is 7.85 kN/m3, is

0.8
1.6
1.2
1

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Hydraulics and Fluid Mechanics in ME
An impulse turbine is used for

High head of water
Low head of water
High discharge
Medium head of water

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