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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The surface tension of mercury at normal temperature compared to that of water is

less
more
same
more or less depending on size of glass tube

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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
NOT PREDICTABLE FROM THE GIVEN DATA
LAMINAR FLOW
TRANSITION FLOW

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Hydraulics & Fluid Mechanics
Surface energy per unit area of a surface is numerically equal to

atmospheric pressure
force of cohesion
force of adhesion
surface tension

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Hydraulics & Fluid Mechanics
Which of the following is demensionless

specific volume
specific gravity
specific weight
specific speed

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

20°C
0°K
4°C
0°C

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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
viscosity
osmosis
surface tension

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