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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Which of the following instrument can be used for measuring speed of an aeroplane

Orifice plate
Venturimeter
pitot tube
rotameter

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Hydraulics & Fluid Mechanics
When a liquid rotates at a constant angular velocity about a vertical axis as a rigid body, the pressure intensity varies

inversely as the radial distance
as the square of the radial distance
inversely as the square of the radial distance
linearly with radial distance

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Hydraulics & Fluid Mechanics
The peoperty by virtue of which a liquid opposes relative motion between its different layers is called

co-efficient of viscosity
viscosity
osmosis
surface tension

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Hydraulics & Fluid Mechanics
Pressure of the order of 10''' torr can be measured by

ionisastion gauge
Bourdon tube
Micro-manometer
Pirani Gauge

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Hydraulics & Fluid Mechanics
A fluid is said to be ideal, if it is

inviscous and compressible
inviscous and incompressible
incompressible
inviscous

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Hydraulics & Fluid Mechanics
The region between the separation streamline and the boundary surface of the solid body is known as

drag
lift
boundary layer
wake

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