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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
One horsepower is equal to

102 watts
75 watts
735 watts
550 watts

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Hydraulics and Fluid Mechanics in ME
A vessel of 4 m3 contains oil which weighs 30 kN. The specific weight of the oil is

10 kN/m3
4.5 kN/m3
7.5 kN/m3
6 kN/m3

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Hydraulics and Fluid Mechanics in ME
A channel is said to be of most economical cross-section, if

It involves lesser excavation for the designed amount of discharge
It has minimum wetted perimeter
It gives maximum discharge for a given cross-sectional area and bed slope
All of these

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Hydraulics and Fluid Mechanics in ME
A flow through an expanding tube at constant rate is called

Unsteady uniform flow
Unsteady non-uniform flow
Steady uniform flow
Steady non-uniform flow

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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

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

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the submerged body is called

Metacentre
Up-thrust
Buoyancy
Reaction

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