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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The units of viscosity are

metre2/se
newton-sec/metre
kg sec/metre
newton-sec/metre2

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Hydraulics & Fluid Mechanics
The surface tension of mercury at normal temperature compared to that of water is

less
more
same
more or less depending on size of glass tube

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Hydraulics & Fluid Mechanics
For a floating body to be in equilibrium

center of buoyancy and e.g. must lie on same vertical plane
meta center should be above e.g.
All of these
a righting couple should be formed

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Hydraulics & Fluid Mechanics
The position of center of pressure on a plane surface immersed vertically in a static mass of fluid is

None of these
always above the centroid of the area
at the centroid of the submerged area
always below the centroid of the area

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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

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

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Hydraulics & Fluid Mechanics
Coefficient of velocity for Borda’s mouth piece running full is

0.611
1.00
0.855
0.707

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MORE MCQ ON Hydraulics & Fluid Mechanics

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