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Hydraulics and Fluid Mechanics in ME

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

cohesion
adhesion
compressibility
surface tension

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Hydraulics and Fluid Mechanics in ME
The pressure measured with the help of a pressure gauge is called

Absolute pressure
Mean pressure
Gauge pressure
Atmospheric pressure

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Hydraulics and Fluid Mechanics in ME
A fluid which obeys the Newton's law of viscosity is termed as

Non-Newtonian fluid
Real fluid
Ideal fluid
Newtonian fluid

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Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant speed and capacity, the pressure and power vary

Inversely as density
Inversely as square root of density
As square of density
Directly as the air or gas density

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Hydraulics and Fluid Mechanics in ME
The torque required to overcome viscous resistance of a footstep bearing is (where μ = Viscosity of the oil, N = Speed of the shaft, R = Radius of the shaft, and t = Thickness of the oil film)

μπ²NR³/60t
μπ²NR²/60t
μπ²NR/60t
μπ²NR⁴/60t

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Hydraulics and Fluid Mechanics in ME
Which of the following is an example of laminar flow?

Underground flow
Flow past tiny bodies
Flow of oil in measuring instruments
All of these

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