71. Falling drops of water become spheres due to the property of
72. The Reynold's number of a ship is __________ to its velocity and length.
73. The velocity corresponding to Reynold number of 2000 is called
74. The pressure of the liquid flowing through the divergent portion of a Venturimeter
75. The velocity of the liquid flowing through the divergent portion of a Venturimeter
76. A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is
77. Discharge (Q) of a centrifugal pump is given by (where D = Diameter of impeller at inlet, b = Width of impeller at inlet and Vf = Velocity of flow at inlet)
78. In order to avoid tendency of separation at throat in a Venturimeter, the ratio of the diameter at throat to the diameter of pipe should be
79. The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as
80. The flow in which conditions do not change with time at any point, is known as
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