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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Ay between two stream lines represents

pressure
discharge
velocity
head

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Hydraulics & Fluid Mechanics
The Prartdtl mixing length is

independent of shear stress
zero at the pipe wall
None of these
maximum at the pipe wall

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Hydraulics & Fluid Mechanics
The discharge through a V- notch varies as

H5’4 where H is head.
H3’2
H5/2
H1/2

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Hydraulics & Fluid Mechanics
Drag force is a function of i) projected area of the body ii) mass density of the fluid iii) velocity of the body The correct answer is

(i) and (iii)
(i), (ii) and (iii)
(ii) and (iii)
(i) and (ii)

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Hydraulics & Fluid Mechanics
Which of the following instrument can be used for measuring speed of an aeroplane

pitot tube
Orifice plate
rotameter
Venturimeter

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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

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

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