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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following instruments is used to measure flow on the application of Bernoulli’s theorem

pitot tube
All of these
Orifice plate
Venturimeter

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Hydraulics and Fluid Mechanics in ME
The time oscillation of a floating body with increase in metacentric height will be

lower
lower/higher depending on weight of body
higher
same

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Hydraulics and Fluid Mechanics in ME
An open tank contains 1 m deep water with 50 cm depth of oil of specific gravity 0.8 above it. The intensity of pressure at the bottom of tank will be

12 kN/m2
4 kN/m2
14 kN/m2
10 kN/m2

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Hydraulics and Fluid Mechanics in ME
The increase in pressure at the outer edge of a drum of radius (r) completely filled up with liquid of density (ρ) and rotating at (ω) rad/s is

ρ ω2 r2
2ρ ω2 r2
ρ ω2 r2/2
ρ ω2 r2/4

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Hydraulics and Fluid Mechanics in ME
A notch is used to measure __________ of liquids.

Volume
Pressure
Velocity
Discharge

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Hydraulics and Fluid Mechanics in ME
The discharge in an open channel corresponding to critical depth is

Zero
Maximum
Minimum
None of these

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