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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Low specific speed of turbine implies it is

Any one of the above
Francis turbine
Propeller turbine
Impulse turbine

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Hydraulics and Fluid Mechanics in ME
The body will float if the force of buoyancy is ___ the weight of the liquid displaced.

Equal to
Less than
None of the listed here
More than

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Hydraulics and Fluid Mechanics in ME
Which of the following hydraulic unit is used for transmitting increased or decreased torque to the driven shaft?

Hydraulic ram
Hydraulic intensifier
Hydraulic accumulator
Hydraulic torque converter

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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/4
L/3
L
L/2

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Hydraulics and Fluid Mechanics in ME
If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be

h
h/w
wh
w/h

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Hydraulics and Fluid Mechanics in ME
One cubic metre of water weighs

1000 liters
500 liters
250 liters
100 liters

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