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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The specific weight of water in S.I. units is taken as

9.81 kN/m3
9.81 × 10-6 N/mm3
Any one of these
9.81 × 103 N/m3

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Hydraulics and Fluid Mechanics in ME
Bernoulli equation deals with the law of conservation of

mass
momentum
energy
work

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Hydraulics and Fluid Mechanics in ME
The stress-strain relation of the newtoneon fluid is

parabolic
hyperbolic
linear
inverse type

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

Impulse turbine
Propeller turbine
Francis turbine
None of the listed here

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

Friction factor and diameter
Flow and length
Length and diameter
Friction loss and flow

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit speed of the wheel is

10 r.p.m.
40 r.p.m.
20 r.p.m.
80 r.p.m.

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