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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is

0.83
0.6
0.4
0.3

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Hydraulics and Fluid Mechanics in ME
An object having 10 kg mass weighs 9.81 kg on a spring balance. The value of 'g' at this place is

10 m/sec²
9.81 m/sec²
9.75 m/sec²
9 m/sec

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Hydraulics and Fluid Mechanics in ME
In a free nappe,

The pressure below the nappe is atmospheric
The pressure below the nappe is negative
The pressure above the nappe is negative
The pressure above the nappe is atmospheric

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Hydraulics and Fluid Mechanics in ME
If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water

52 cm
51 cm
50 cm
52.2 cm

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Hydraulics and Fluid Mechanics in ME
In a free vortex motion, the radial component of velocity everywhere is

minimum
non-zero and finite
zero
maximum

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Hydraulics and Fluid Mechanics in ME
The unit of kinematic viscosity in S. I. units is

N-s/m2
m2/s
N-m/s
N-m

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