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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Indicator diagram of a reciprocating pump is a graph between

Flow vs. swept volume
Flow vs. speed
Pressure vs. speed
Pressure in cylinder vs. swept volume

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Hydraulics and Fluid Mechanics in ME
The distance y from pipe boundary, at which the point velocity is equal to average velocity for turbulent flow, is (where R is radius of pipe)

0.423 R
0.707 R
0.223 R
0.577 R

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Hydraulics and Fluid Mechanics in ME
The volumetric change of the fluid caused by a resistance is known as

Volumetric strain
Adhesion
Volumetric index
Compressibility

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Hydraulics and Fluid Mechanics in ME
The pressure of air __________ with the increase of height from the surface of the earth.

None of these
Increases
Decreases
Does not change

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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.)

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

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Hydraulics and Fluid Mechanics in ME
High specific speed of turbine implies it is

Francis turbine
None of the listed here
Impulse turbine
Propeller turbine

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