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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
When a body floating in a liquid, is displaced slightly, it oscillates about

metacentre
e.g. of body
center of pressure
center of buoyancy

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Hydraulics & Fluid Mechanics
The line of action of the buoyant force acts through the

center of gravity of any submerged body
centriod of the displaced volume of fluid
centroid of the volume of fluid vertically above the body
center of the volume of floating body

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Hydraulics & Fluid Mechanics
Least possible value of correction factor for i) kinetic energy is zero ii) kinetic energy is 1 iii) momentum is zero iv) momentum is 1 The correct statements are

(ii) and (iii)
(ii) and (iv)
(i) and (iii)
(i) and (iv)

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Hydraulics & Fluid Mechanics
An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is

9.75 m/sec²
10m/sec²
10.2/m sec
9.81 m/sec²

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

Pirani Gauge
ionisastion gauge
Bourdon tube
Micro-manometer

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Hydraulics & Fluid Mechanics
Flow of water in a pipe about 3 meters in diameter can be measured by

orifice plate
rotameter
venturi
pitot tube

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