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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The critical depth meter is used to measure

Depth of flow in an open channel
Depth of channel
Hydraulic jump
Velocity of flow in an open channel

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Hydraulics and Fluid Mechanics in ME
Bernoulli's equation is applied to

Venturimeter
Orifice meter
All of the listed here
Pitot tube

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Hydraulics and Fluid Mechanics in ME
In an immersed body, center of pressure is

above the center of gravity
at the center of gravity
could be above or below e.g. depending on density of body and liquid
below be center of gravity

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Hydraulics and Fluid Mechanics in ME
When the pressure intensity at a point is more than the local atmospheric pressure, then the difference of these two pressures is called

Gauge pressure
Positive gauge pressure
Absolute pressure
Vacuum pressure

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Hydraulics and Fluid Mechanics in ME
The power transmitted through the nozzle is maximum when the head lost due to friction in the pipe is __________ of the total supply head.

One-third
One-half
None of these
Two-third

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Hydraulics and Fluid Mechanics in ME
The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a triangular notch is given by

dQ/Q = 3/2 × (dH/H)
dQ/Q = 3 × (dH/H)
dQ/Q = 5/2 × (dH/H)
dQ/Q = 2 × (dH/H)

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