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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When time of closure tc = L/v0 (where L is length of pipe and v0 is speed of pressure wave), the portion of pipe length subjected to maximum head is

L
L/3
L/4
L/2

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Hydraulics and Fluid Mechanics in ME
Specific speed for reaction turbines ranges from

80 to 200
250 to 300
0 to 4.5
10 to 100

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Hydraulics and Fluid Mechanics in ME
The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called

Newton's law of cooling
Newton's law of viscosity
Newton's law of motion
Newton's law of resistance

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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

inviscous and moving
viscous
moving
viscous and moving.

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

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

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Hydraulics and Fluid Mechanics in ME
Which of the following meters is not associated with viscosity

Orsat
Say bolt
Engler
Red wood

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