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Hydraulic and Fluid Machines - Interview Questions and Answers

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66. Pitot tube is used for measurement of
A. pressure
B. flow
C. velocity
D. dsscharge
E. viscosity.
Explanation:
67. Uniform flow occurs when
A. the direction and magnitude of the velocity at all points are identical
B. the velocity of successive fluid pai-ticles, at any point, is the same at suc�cessive periods of time
C. the magnitude and direction of the velocity do not change from point to point in the fluid
D. the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plsr.e
E. velocity, depth, pressure, etc. change from point to point in the fluid flow.
Explanation:
68. An ideal flow of any fluid must fulfill the following
A. Newton's law of motion
B. Newton's law of viscosity
C. Pascal' law
D. Continuity equation
E. Boundary layer theory.
Explanation:
69. In a forced vortex, the velocity of flow everywhere within the fluid is
A. maximum
B. minimum
C. zero
D. non-zero finite
E. unpredictable.
Explanation:
70. All the terms of energy in Bernoulli's equation have dimension of
A. energy
B. work
C. mass
D. length
E. time.
Explanation:
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