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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Dynamic viscosity of most of the gases with rise in temperature

unpredictable
decreases
remains unaffected
increases

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Hydraulics and Fluid Mechanics in ME
The type of centrifugal pump preferred for a specific speed of 20 r.p.m. is

Slow speed pump with radial flow at outlet
Medium speed pump with radial flow at outlet
High speed pump with radial flow at outlet
High speed pump with axial flow at outlet

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

at the center of gravity
above 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
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
The volume of a fluid __________ as the pressure increases.

Decreases
Increases
None of these
Remains same

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Hydraulics and Fluid Mechanics in ME
Indicator diagram of a reciprocating pump is a graph between

Pressure in cylinder vs. swept volume
Flow vs. speed
Flow vs. swept volume
Pressure vs. speed

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