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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Ay between two stream lines represents

velocity
pressure
discharge
head

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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

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

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

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Hydraulics & Fluid Mechanics
The units of viscosity are

metre2/se
newton-sec/metre2
kg sec/metre
newton-sec/metre

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Hydraulics & Fluid Mechanics
The difference of pressure between the inside and outside of a liquid drop is

(b)p = T/r
p = T/2r
(a)p = Txr
(d)p = 2T/r

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Hydraulics & Fluid Mechanics
THE THEORETICAL VALUE OF COEFFICIENT OF CONTRACTION OF A SHARP EDGED ORIFICE IS

0.611
0.86
0.95
1.01

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