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Hydraulics & Fluid Mechanics

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

Micro-manometer
ionisastion gauge
Bourdon tube
Pirani Gauge

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Hydraulics & Fluid Mechanics
Which of the following is demensionless

specific weight
specific volume
specific gravity
specific speed

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

0.611
0.855
1.00
0.707

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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

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

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Hydraulics & Fluid Mechanics
The increase in meta centric height i) increases stability ii) decreases stability iii) increases comfort for passengers iv) decreases comfort for passengers The correct answer is

(i) and (iii)
(ii) and (iv)
(i) and (iv)
(ii) and (iii)

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Hydraulics & Fluid Mechanics
Uniform flow occurs when

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

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