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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When time of closure tc = L/v0 (where L is length of pipe and v0 is speed of pressure wave), the portion of pipe length subjected to maximum head is

L/3
L
L/4
L/2

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Hydraulics and Fluid Mechanics in ME
Which of the following has highest coefficient of discharge ?

CipoUetti weir
sharp edged orifice
Borda’s mouthpiece running full
venturimeter

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Hydraulics and Fluid Mechanics in ME
The discharge through a reaction turbine with increase in unit speed

Remain unaffected
Increases
First increases and then decreases
Decreases

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Hydraulics and Fluid Mechanics in ME
The optimum value of vane exit angle for a centrifugal pump impeller is

50-60°
10-15°
30-40°
20-25°

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Hydraulics and Fluid Mechanics in ME
An impulse turbine is used for

Low head of water
High discharge
Medium head of water
High head of water

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Hydraulics and Fluid Mechanics in ME
Pascal-second is the unit of

dynamic viscosity
surface tension
kinematic viscosity
pressure

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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