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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A large Reynold number is indication of

Steady flow
Highly turbulent flow
Smooth and streamline flow
Laminar flow

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Hydraulics and Fluid Mechanics in ME
The factional resistance of a pipe varies approximately with __________ of the liquid.

Square of velocity
Pressure
Cube of velocity
Velocity

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Hydraulics and Fluid Mechanics in ME
In steady flow of a fluid, the total accele ration of any fluid particle

can be zero
is never zero
is always zero
is independent of coordinates

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Hydraulics and Fluid Mechanics in ME
The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is ap-proximately

20 mm
5 mm
30 mm
10 mm

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Hydraulics and Fluid Mechanics in ME
The length of a pipe is 1 km and its diameter is 20 cm. If the diameter of an equivalent pipe is 40 cm, then its length is

8 km
20 km
4 km
32 km

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Hydraulics and Fluid Mechanics in ME
The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is (Assume that boundary layer is entirely laminar)

0.40 cm
0.10 cm
0.20 cm
0.05 cm

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