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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
THEE HORIZONTAL COMPONENT OF BUOYANT FORCE IS

SAME AS BUOYANT FORCE
None of these
NEGLIGIBLE
ZERO

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

1.00
0.855
0.707
0.611

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Hydraulics & Fluid Mechanics
The discharge of a liquid of kinematic viscosity 4 cm²/sec through a 8 cm dia-meter pipe is 3200n cm7sec. The type of flow expected is

TURBULENT FLOW
LAMINAR FLOW
NOT PREDICTABLE FROM THE GIVEN DATA
TRANSITION FLOW

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Hydraulics & Fluid Mechanics
Which of the following is demensionless

specific weight
specific speed
specific volume
specific gravity

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Hydraulics & Fluid Mechanics
To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than

6.4 m above the hydraulic gradient
10.0 m above the hydraulic gradient
2.4 m above the hydraulic gradient
5.0 above the hydraulic gradient

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Hydraulics & Fluid Mechanics
In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is

50 M/SEC
33 M/SEC
40 M/SEC
22.5 M/SEC

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