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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following meters is not associated with viscosity

Engler
Orsat
Red wood
Say bolt

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Hydraulics and Fluid Mechanics in ME
Euler's equation in the differential form for the motion of liquids is given by

ρ.dp - g.dz + v.dv = 0
dp/ρ + g.dz + v.dv = 0
ρ.dp + g.dz + v.dv = 0
dp/ρ - g.dz + v.dv = 0

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Hydraulics and Fluid Mechanics in ME
The ratio of quantity of liquid discharged per second from the pump to the quantity of liquid passing per second through the impeller is known as

Manometric efficiency
Volumetric efficiency
Overall efficiency
Mechanical efficiency

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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

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

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Hydraulics and Fluid Mechanics in ME
The atmospheric pressure at sea level is

10.3 m of water
103 kN/m2
All of these
760 mm of mercury

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Hydraulics and Fluid Mechanics in ME
The pressure at the summit of a syphon is

less than atmospheric
equal to atmospheric
more than atmospheric
None of these

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