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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Specific speed for reaction turbines ranges from

0 to 4.5
10 to 100
80 to 200
250 to 300

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is successfully used for lifting water to the boilers?

Reciprocating pump
Centrifugal pump
Jet pump
Airlift pump

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Hydraulics and Fluid Mechanics in ME
The pressure less than atmospheric pressure is known as

Negative gauge pressure
Vacuum pressure
All of the listed here
Suction pressure

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Hydraulics and Fluid Mechanics in ME
Surge wave in a rectangular channel is an example ofi) steady flowii) unsteady flowiii) uniform flowiv) non-uniform flowThe correct answer is

(ii) and (iii)
(i) and (iv)
(i) and (iii)
(ii) and (iv)

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Hydraulics and Fluid Mechanics in ME
Piezometer is used to measure

Pressure in pipe, channels etc
Atmospheric pressure
Difference of pressure between two points
Very low pressures

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Hydraulics and Fluid Mechanics in ME
The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is

μ π³ N² R⁴ /3600 t
μ π³ N² R⁴ /1800 t
μ π³ N² R² /3600 t
μ π³ N² R² /1800 t

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