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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The units of viscosity are

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

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Hydraulics & Fluid Mechanics
Flow of water in a pipe about 3 meters in diameter can be measured by

orifice plate
venturi
rotameter
pitot tube

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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

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

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Hydraulics & Fluid Mechanics
Flow at constant rate through a tapering pipe is i) steady flow ii) uniform flow iii) unsteady flow iv) non-uniform flow The correct answer is

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

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Hydraulics & Fluid Mechanics
Normal depth in open channel flow is the depth of flow corresponding to

unsteady flow
laminar flow
Steady flow
uniform flow

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Hydraulics & Fluid Mechanics
The Prartdtl mixing length is

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

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