Fluid Mechanics
A centrifugal pump used to pump water is used to pump an oil with specific gravity of 0.8 at the same rate. The power consumption will now

Remain same
Increase
Data insufficient to predict
Decrease

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Fluid Mechanics
A differential pressure cell is used for

Remote recording of pressure difference
Measuring small pressure difference in liquids
Measuring small pressure difference in gases
Measuring the difference of the impact & the static pressure

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Fluid Mechanics
Select the wrong statement pertaining to flow of an incompressible fluid through a venturimeter.

Venturimeter occupies less space than an orificemeter
For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal to that leaving the venturimeter
Discharge of fluid through a venturimeter depends upon the gage difference irrespective of the orientation of venturimeter
Venturimeter incurs less power loss compared to an equivalent orificemeter

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