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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

Venturimeter
pitot tube
hot wire anemometer
rotameter

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Hydraulics and Fluid Mechanics in ME
Manometer is used to measure

very low pressure
atmospheric pressure
difference of pressure between two points
pressure in pipes, channels etc

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Hydraulics and Fluid Mechanics in ME
With an increase in size of tube, the rise or depression of liquid in the tube due to surface tension will

Decrease
Remain unchanged
Depend upon the characteristics of liquid
Increase

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Hydraulics and Fluid Mechanics in ME
For small discharge at high pressure, following pump is preferred

Centrifugal
Reciprocating
Mixed flow
Axial flow

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Hydraulics and Fluid Mechanics in ME
In order to measure the flow with a Venturimeter, it is installed in

Horizontal line
Any direction and in any location
Inclined line with flow downwards
Inclined line with flow upwards

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Hydraulics and Fluid Mechanics in ME
A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is

5
7
1
6

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