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Hydraulics & Fluid Mechanics

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

pitot tube
venturi
orifice plate
rotameter

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Hydraulics & Fluid Mechanics
Free surface of a liquid behaves like a sheet and tends to contract to smallest possible area due to the

force of friction
force of cohesion
force of diffusion
force of adhesion

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

Pirani Gauge
Micro-manometer
Bourdon tube
ionisastion gauge

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Hydraulics & Fluid Mechanics
Separation of flow occurs when

All of these
the boundary layer comes to rest
the pressure intensity reaches a minimum
the cross-section of a channel is reduced

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Hydraulics & Fluid Mechanics
The discharge over a broad crested weir is maximum when the depth of flow is (where H is the available head)

2 H/5
2 H/3
H/3
H/2

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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

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

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