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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The flow in a pipe is neither laminar nor turbulent when Reynold number is

More than 2800
Less than 2000
None of these
Between 2000 and 2800

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Hydraulics and Fluid Mechanics in ME
The discharge of a double acting reciprocating pump is (where L = Length of stroke, A = Cross-sectional area of piston, and N = Speed of crank in r.p.m.)

(L.A.N)/60
2 L.A.N
(2 L.A.N)/60
L.A.N

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Hydraulics and Fluid Mechanics in ME
Power required to drive a centrifugal pump is directly proportional to _________ of its impeller.

Square of diameter
Diameter
Cube of diameter
Fourth power of diameter

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Hydraulics and Fluid Mechanics in ME
An average value of coefficient of velocity is

0.76
0.84
0.62
0.97

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Hydraulics and Fluid Mechanics in ME
In a forced vortex, the velocity of flow everywhere within the fluid is

non-zero finite
zero
minimum
maximum

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Hydraulics and Fluid Mechanics in ME
The Metacentric heights of two floating bodies A and B are 1 m and 1.5 m respectively. Select the correct statement.

The bodies A and B have equal stability
The body B is more stable than body A
The body A is more stable than body B
The bodies A and B are unstable

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