71. The co-efficient of drag and lift for an incompressible fluid depends on the
72. __________ flow means the flow of incompressible fluid with no shear.
73. For the same flow rate of a fluid, the pressure drop is the least for
74. Isothermal turbulent flow of a fluid results in decrease of its pressure, which depends on the
75. Propellers are
76. Horsepower requirement for given pump capacity depends upon the
77. Working of a __________ pump characterises mixed flow.
78. Which is the correct relationship for a centrifugal pump? (where, D = Impeller diameter, inches H = Head developed, ft of liquid pumped N = Speed of pump, rpm)
79. Purpose of air lift pump is to
80. A pump operating under specific conditions delivers insufficient quantity of liquid. This may be set right by
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