41. The fluid jet discharging from a 2" diameter orifice has a diameter of 1.75" at its vena-contracta. The co-efficient of contraction is
42. What is the normal range of exit cone angle of a venturimeter?
43. Upto what value of 'Mach number', a fluid may be considered as incompressible?
44. The head loss due to sudden contraction is proportional to
45. With increase in the shear rate, the apparent viscosity of pseudoplastic fluids
46. Boundary layer separation is characterised by one of the conditions given below, where 'Re' is the Reynolds number for the flow. Select the appropriate conditions.
47. For the same terminal conditions and fitting size, the least friction loss is incurred in a/an
48. The ratio of the depth of flow to the hydraulic radius for the most economical trapezoidal section, in open channel flow is
49. The fluid property, due to which, mercury does not wet the glass is
50. The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the
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