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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A fluid whose viscosity does not change with the rate of deformation or shear strain is known as

Real fluid
Newtonian fluid
Ideal fluid
Non-Newtonian fluid

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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
24.8 r.p.m.
82.4 r.p.m.

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Hydraulics and Fluid Mechanics in ME
The specific weight of sea water is __________ that of pure water.

Less than
More than
Same as
None of these

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Hydraulics and Fluid Mechanics in ME
The velocity distribution for laminar flow through a circular tube

None of these
is constant over the cross-section
varies linearly from zero at walls to maximum at centre
varies parabolically with maximum at the centre

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Hydraulics and Fluid Mechanics in ME
The value of coefficient of discharge is __________ the value of coefficient of velocity.

Same as
More than
Less than
None of these

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Hydraulics and Fluid Mechanics in ME
A nozzle is generally made of

Convergent shape
Convergent-divergent shape
Divergent shape
Cylindrical shape

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