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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The center of gravity of the volume of the liquid displaced by an immersed body is called

center of gravity
center of pressure
center of buoyancy
metacentre

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Hydraulics and Fluid Mechanics in ME
The correct relationship among displacement thickness d, momentum thickness m and energy thickness e is

e > m > d
d > m > e
e > d > m
d > e > m

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Hydraulics and Fluid Mechanics in ME
The ratio of the normal force of jet of water on a plate inclined at an angle of 30° as compared to that when the plate is normal to jet, is

1
1/√2
√2
43832

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Hydraulics and Fluid Mechanics in ME
A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to

10 kg
100 kg
1 kg
1000 kg

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Hydraulics and Fluid Mechanics in ME
A flow through a long pipe at constant rate is called

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

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Hydraulics and Fluid Mechanics in ME
If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in

Unstable equilibrium
Neutral equilibrium
None of these
Stable equilibrium

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