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Hydraulics and Fluid Mechanics in ME

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

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

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for the fans having constant wheel diameters, the power demand varies

Directly as fan speed
Square root of fan speed
Cube of fan speed
Square of fan speed

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Hydraulics and Fluid Mechanics in ME
A flow whose streamline is represented by a curve, is called

Three-dimensional flow
Four-dimensional flow
Two-dimensional flow
One-dimensional flow

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Hydraulics and Fluid Mechanics in ME
Which of the following has highest coefficient of discharge ?

CipoUetti weir
sharp edged orifice
Borda’s mouthpiece running full
venturimeter

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Hydraulics and Fluid Mechanics in ME
The specific speed of a hydraulic turbine depends upon

Speed and power developed
Speed, power developed and head of water
Discharge and power developed
Speed and head of water

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Hydraulics and Fluid Mechanics in ME
In order to measure the flow with a Venturimeter, it is installed in

Any direction and in any location
Horizontal line
Inclined line with flow upwards
Inclined line with flow downwards

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