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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The correct relationship among displacement thickness d, momentum thickness m and energy thickness e is

d > m > e
e > m > d
d > e > m
e > d > m

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit discharge of wheel is

2.5 m3/s
1.5 m3/s
0.5 m3/s
0.25 m3/s

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Hydraulics and Fluid Mechanics in ME
The coefficient of viscosity may be determined by

Orifice type viscometer
Capillary tube method
All of these
Rotating cylinder method

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Hydraulics and Fluid Mechanics in ME
Liquids transmit pressure equally in all the directions. This is according to

Pascal's law
Boyle's law
Archimedes principle
Newton's formula

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Hydraulics and Fluid Mechanics in ME
The property of a fluid which enables it to resist tensile stress is known as

adhesion
cohesion
compressibility
surface tension

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Hydraulics and Fluid Mechanics in ME
The specific gravity of an oil whose specific weight is 7.85 kN/m3, is

0.8
1
1.2
1.6

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