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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to

981 PA
91 PA
1 PA
9810 PA

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

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

0.855
0.707
1.00
0.611

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Hydraulics & Fluid Mechanics
In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is

50 M/SEC
33 M/SEC
22.5 M/SEC
40 M/SEC

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Hydraulics & Fluid Mechanics
A perfect gas

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

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Hydraulics & Fluid Mechanics
In a Sutro weir, the discharge is proportional to (where H is head)

H3/2
H1/2
H5/2
H

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