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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
A large Roynold number is indication of

LAMINAR FLOW
turbulent flow
highly turbulent flow.
smooth and streamline flow

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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

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

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Hydraulics & Fluid Mechanics
The horse power transmitted through a pipe is maximum when the ratio of loss of head due to friction and total head supplied is

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

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Hydraulics & Fluid Mechanics
The density of water is 1000 kg/m3 at

4°C
0°K
20°C
0°C

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Hydraulics & Fluid Mechanics
When a liquid rotates at a constant angular velocity about a vertical axis as a rigid body, the pressure intensity varies

as the square of the radial distance
linearly with radial distance
inversely as the square of the radial distance
inversely as the radial distance

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Hydraulics & Fluid Mechanics
The peoperty by virtue of which a liquid opposes relative motion between its different layers is called

co-efficient of viscosity
surface tension
viscosity
osmosis

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