41. Which of the following is an incorrect statement ?
42. Flow occurring in a pipeline when a valve is being opened is
43. The speed of sound in a ideal gas varies directly as its
44. Liquids transmit pressure equally in all the directions. This is according to
45. The velocity of jet of water travelling out of opening in a tank filled with water is proportional to
46. The distance y from pipe boundary, at which the point velocity is equal to average velocity for turbulent flow, is (where R is radius of pipe)
47. A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ?
48. Hot wire anemometer is used to measure
49. The pitot tube is used to measure
50. Hot wire anemometer is used to measure
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