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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Units of surface tension are

energy/unit area
distance
it has no units
both of the above

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Hydraulics and Fluid Mechanics in ME
A fluid having no viscosity is known as

Non-Newtonian fluid
Newtonian fluid
Real fluid
Ideal fluid

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is successfully used for lifting water to the boilers?

Centrifugal pump
Jet pump
Airlift pump
Reciprocating pump

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Hydraulics and Fluid Mechanics in ME
The meatcentric height of a ship is 0.6 m and the radius of gyration is 4 m. The time of rolling of a ship is

14.1 sec
5.2 sec
4.1 sec
10.4 sec

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

500 liters
1000 liters
250 liters
100 liters

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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 = 2 × (dH/H)
dQ/Q = 5/2 × (dH/H)

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