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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Pressure of the order of 10''' torr can be measured by

Micro-manometer
Bourdon tube
ionisastion gauge
Pirani Gauge

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Hydraulics & Fluid Mechanics
The position of center of pressure on a plane surface immersed vertically in a static mass of fluid is

always above the centroid of the area
None of these
always below the centroid of the area
at the centroid of the submerged area

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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
1/4
1/3
1/2

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Hydraulics & Fluid Mechanics
Uniform flow occurs when

the flow is steady
the flow is streamline
size and shape of the cross section in a particular length remain constant
size and cross section change uniformly along length

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Hydraulics & Fluid Mechanics
A perfect gas

is of theoretical interest
has constant viscosity
None of these
is incompressible

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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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