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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If the coefficient of discharge is 0.6, then the discharge over a right angled notch is

4.171 H5/2
7.141 H5/2
1.417 H5/2
0.417 H5/2

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Hydraulics and Fluid Mechanics in ME
A hemispherical tank of radius (R) has an orifice of cross-sectional area (a) at its bottom and is full of liquid. The time required to empty the tank completely is

14π R7/2/15Cd × a √(2g)
14π R1/2/15Cd × a √(2g)
14π R3/2/15Cd × a √(2g)
14π R5/2/15Cd × a √(2g)

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Hydraulics and Fluid Mechanics in ME
For very great pressures, viscosity of moss gases and liquids

shows erratic behaviour
remains same
increases
decreases

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Hydraulics and Fluid Mechanics in ME
The specific speed of a centrifugal pump, delivering 750 liters of water per second against a head of 15 meters at 725 r.p.m., is

48.2 r.p.m
248 r.p.m
82.4 r.p.m.
24.8 r.p.m.

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Hydraulics and Fluid Mechanics in ME
A hydraulic accumulator normally consists of

Two cylinders, two rams and a storage device
A cylinder and a ram
A cylinder, a piston, storage tank and control valve
Two coaxial rams and two cylinders

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Hydraulics and Fluid Mechanics in ME
High specific speed of a pump implies it is

Any one of the above
Centrifugal pump
Axial flow pump
Mixed flow pump

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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