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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following turbine is preferred for 0 to 25 m head of water?

Kaplan turbine
None of these
Pelton wheel
Francis turbine

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Hydraulics and Fluid Mechanics in ME
The working of which of the following hydraulic units is based on Pascal's law?

Hydraulic coupling
Jet pump
Hydraulic press
Air lift pump

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Hydraulics and Fluid Mechanics in ME
For hypersonic flow, the Mach number is

greater than unity
greater than 4
greater than 2
unity

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Hydraulics and Fluid Mechanics in ME
The continuity equation is connected with

Steady/unsteady flow
Open channel/pipe flow
Conservation of mass
Compressibility of fluids

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Hydraulics and Fluid Mechanics in ME
A rectangular block 2 m long, 1 m wide and 1 m deep floats in water, the depth of immersion being 0.5 m. If water weighs 10 kN/m3, then the weight of the block is

20 kN
5kN
lOkN
15 kN

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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

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

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