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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following instrument can be used for measuring speed of a submarine moving in deep sea

pitot tube
hot wire anemometer
Venturimeter
rotameter

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Hydraulics and Fluid Mechanics in ME
The two important forces for a floating body are

buoyancy, gravity
inertial, gravity
buoyancy, inertial
buoyancy, pressure

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Hydraulics and Fluid Mechanics in ME
The top of the weir over which the water flows is known as

Sill or crest
Nappe or vein
None of these
Orifice

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Hydraulics and Fluid Mechanics in ME
A turbine pump is basically a centrifugal pump equipped additionally with

Adjustable blades
Inlet guide blades
Vaned diffusion casing
Backward curved blades

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Hydraulics and Fluid Mechanics in ME
The efficiency of power transmission through pipe is (where H = Total supply head, and hf = Head lost due to friction in the pipe)

H/(H - hf )
(H - hf )/H
(H + hf )/H
H/(H + hf )

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Hydraulics and Fluid Mechanics in ME
In a reciprocating pump, air vessels are used to

Increase delivery head
Reduce suction head
Smoothen the flow
Reduce acceleration head

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