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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The power transmitted through the nozzle is maximum when the head lost due to friction in the pipe is __________ of the total supply head.

One-half
One-third
None of these
Two-third

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Hydraulics and Fluid Mechanics in ME
Kinematic viscosity is dependent upon

Distance
Pressure
Density
Flow

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Hydraulics and Fluid Mechanics in ME
Which of the following statement is correct as regard to water wheels?

They have slow speeds
All of these
They are suitable even for low water heads
They give constant efficiency, even if the discharge is not constant

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Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the viscous force is called

Weber's number
Froude's number
Reynold's number
Euler's number

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Hydraulics and Fluid Mechanics in ME
The liquid used in manometers should have

High surface tension
Low surface tension
Low density
High density

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Hydraulics and Fluid Mechanics in ME
The length of a pipe is 1 km and its diameter is 20 cm. If the diameter of an equivalent pipe is 40 cm, then its length is

32 km
20 km
4 km
8 km

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