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Hydraulics and Fluid Mechanics in ME

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

Decreases
First increases and then decreases
Increases
Remain unaffected

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Hydraulics and Fluid Mechanics in ME
The pitot tube is used to measure

stagnation pressure
dynamic pressure
velocity at stagnation point
static pressure

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Hydraulics and Fluid Mechanics in ME
Re-entrant or Borda's mouthpiece is an __________ mouthpiece.

Internal
Both A and B
None of these
External

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Hydraulics and Fluid Mechanics in ME
With the same cross-sectional area and immersed in same turbulent flow, the largest total drag will be on

a circular disc of plate held normal to flow
a streamlined body
a sphere
a cylinder

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Hydraulics and Fluid Mechanics in ME
The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.

Double
Three fourth
Equal to
One-half

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Hydraulics and Fluid Mechanics in ME
Which of the following turbine is preferred for a specific speed of 60 to 300 r.p.m.?

None of these
Pelton wheel
Francis turbine
Kaplan turbine

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