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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
For small discharge at high pressure, following pump is preferred

Reciprocating
Axial flow
Mixed flow
Centrifugal

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

High surface tension
High density
Low density
Low surface tension

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Hydraulics and Fluid Mechanics in ME
The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as

center of pressure
metacentre
center of gravity
center of buoyancy

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Hydraulics and Fluid Mechanics in ME
The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called

Newton's law of viscosity
Newton's law of resistance
Newton's law of motion
Newton's law of cooling

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Hydraulics and Fluid Mechanics in ME
Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, in the direction of flow of the liquid, is known as

Bulk modulus
Stagnation pressure
Drag
Lift

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Hydraulics and Fluid Mechanics in ME
The specific speed of a hydraulic turbine depends upon

Speed and head of water
Speed and power developed
Speed, power developed and head of water
Discharge and power developed

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