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Hydraulics & Fluid Mechanics

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

Pirani Gauge
Bourdon tube
ionisastion gauge
Micro-manometer

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Hydraulics & Fluid Mechanics
Drag force is a function of i) projected area of the body ii) mass density of the fluid iii) velocity of the body The correct answer is

(i) and (iii)
(i) and (ii)
(i), (ii) and (iii)
(ii) and (iii)

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Hydraulics & Fluid Mechanics
According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to

the weight of the body
weight of the fluid displaced by the body
less than the weight of the body
more than the weight of the body

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Hydraulics & Fluid Mechanics
Flow at constant rate through a tapering pipe is i) steady flow ii) uniform flow iii) unsteady flow iv) non-uniform flow The correct answer is

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

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

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

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Hydraulics & Fluid Mechanics
An open vessel of water is accelerated up an inclined plane. The free water surface will

be horizontal
make an angle in direction of inclination of inclined plane
make an angle in opposite direction to inclination of inclined plane
any one of above is possible

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