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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The pressure at a point in a fluid will not be same in all the directions when the fluid is

viscous and moving.
moving
inviscous and moving
viscous

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Hydraulics and Fluid Mechanics in ME
In impulse Turbine, energy available at the inlet is in the form of

Potential Energy
Kinetic energy
Strain Energy
None of these

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Hydraulics and Fluid Mechanics in ME
In the case of steady flow of a fluid, the acceleration of any fluid particle is

zero
variable
zero under limiting conditions
constant

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Hydraulics and Fluid Mechanics in ME
The static head of a centrifugal pump is equal to the _________ of suction head and delivery head.

Product
Difference
Sum
None of these

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Hydraulics and Fluid Mechanics in ME
A hemispherical tank of radius (R) has an orifice of cross-sectional area (a) at its bottom and is full of liquid. The time required to empty the tank completely is

14π R1/2/15Cd × a √(2g)
14π R5/2/15Cd × a √(2g)
14π R3/2/15Cd × a √(2g)
14π R7/2/15Cd × a √(2g)

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Hydraulics and Fluid Mechanics in ME
Mercury does not wet glass. This is due to property of liquid known as

cohesion
surface tension
viscosity
adhesion

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