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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
One horsepower is equal to

102 watts
75 watts
550 watts
735 watts

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Hydraulics and Fluid Mechanics in ME
The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is

μ π³ N² R⁴ /1800 t
μ π³ N² R² /3600 t
μ π³ N² R⁴ /3600 t
μ π³ N² R² /1800 t

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Hydraulics and Fluid Mechanics in ME
Head developed by a centrifugal pump depends on

Fluid density
Both (A) and (B) above
Impeller diameter
Speed

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Hydraulics and Fluid Mechanics in ME
Kinematic similarity is said to exist between the model and the prototype, if both of them

Are equal in size and shape
Are identical in shape, but differ only in size
Have identical velocities
Have identical forces

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Hydraulics and Fluid Mechanics in ME
The force per unit length is the unit of

Capillarity
Viscosity
Surface tension
Compressibility

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Hydraulics and Fluid Mechanics in ME
The discharge through a siphon spillway is

Cd × a × √(2gH)
Cd × a × √(2g) × H2
Cd × a × √(2g) × H3/2
Cd × a × √(2g) × H5/2

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