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Hydraulic and Fluid Machines - Interview Questions and Answers

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26. A ship whose hull length is 100 m is to travel at 10 m/sec. For dynamic similarity, at what velocity should a 1:25 model be towed through water ?
A. 10 m/sec
B. 25 m/sec
C. 2 m/sec
D. 50 m/sec
E. 250 m/sec.
Explanation:
27. Hot wire anemometer is used to measure
A. pressure in gases
B. liquid discharge
C. pressure in liquids
D. gas velocities
E. temperature.
Explanation:
28. The flow in which conditions do not change with time at any point, is known as
A. one dimensional flow
B. uniform flow
C. steady flow
D. turbulent flow
E. streamline flow.
Explanation:
29. Flow of water in a pipe about 3 metres in diameter can be measured by
A. orifice plate
B. venturi
C. rotameter
D. pitot tube
E. nozzle
Explanation:
30. The flow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as
A. one dimensional flow
B. uniform f^w
C. steady flow
D. turbulent flow
E. streamline flow.
Explanation:
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