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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The length of a pipe is 1 km and its diameter is 20 cm. If the diameter of an equivalent pipe is 40 cm, then its length is

32 km
20 km
8 km
4 km

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Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as

Turbulent flow
Uniform flow
Steady flow
Vortex flow

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Hydraulics and Fluid Mechanics in ME
The bulk modulus of elasticity with increase in pressure

increases first upto certain limit and then decreases
increases
decreases
remains constant

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Hydraulics and Fluid Mechanics in ME
A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy.

None of these
Coincides with
Lies above
Lies below

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Hydraulics and Fluid Mechanics in ME
The pitot tube is used to measure

static pressure
dynamic pressure
velocity at stagnation point
stagnation pressure

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Hydraulics and Fluid Mechanics in ME
The property of a liquid which offers resistance to the movement of one layer of liquid over another adjacent layer of liquid, is called

Compressibility
Viscosity
Surface tension
Capillarity

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