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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The maximum number of jets, generally, employed in an impulse turbine without jet interference are

Six
Four
Eight
Two

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Hydraulics and Fluid Mechanics in ME
Cavitation is caused by

weak material
low pressure
high velocity
high pressure

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Hydraulics and Fluid Mechanics in ME
The power developed by a turbine is (where H = Head of water under which the turbine is working)

Inversely proportional to H1/2
Inversely proportional to H3/2
Directly proportional to H3/2
Directly proportional to H1/2

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Hydraulics and Fluid Mechanics in ME
The hydraulic grade line is

always sloping downward in the direction of flow
All of these
always above the centre line of pipe
never above the energy grade line

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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

Drag
Stagnation pressure
Lift
Bulk modulus

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Hydraulics and Fluid Mechanics in ME
A large Reynold number is indication of

Laminar flow
Steady flow
Highly turbulent flow
Smooth and streamline flow

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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