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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
THEE HORIZONTAL COMPONENT OF BUOYANT FORCE IS

None of these
NEGLIGIBLE
SAME AS BUOYANT FORCE
ZERO

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Hydraulics & Fluid Mechanics
The region between the separation streamline and the boundary surface of the solid body is known as

drag
lift
wake
boundary layer

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

0.611
0.707
0.855
1.00

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Hydraulics & Fluid Mechanics
The distance from pipe boundary, at which the turbulent shear stress is one-third die wall shear stress, is (where R is the radius of pipe)

2/3 R
1/2 R
1/3 R
3/4 R

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Hydraulics & Fluid Mechanics
Two pipe systems are said to be equivalent when

length of pipe and discharge are same in two systems
length and diameter are same in two systems
friction factor and length are same in two systems
head loss and discharge are same in two systems

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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

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

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