41. The Stoke's stream function applies to the
42. In case of turbulent flow of a Newtonion fluid in a straight pipe, the maximum velocity is equal to (where, Vavg = average fluid velocity)
43. For Laminar flow through a packed bed, the pressure drop is proportional to (Vs is the superficial liquid velocity and Dp is the particle diameter)
44. The equation given below is called the __________ .
$${{\text{f}}^{ - 0.5}} = 4.07\,{\log _{\text{e}}}{\left( {{{\text{N}}_{{\text{Re}}}}\sqrt {\text{f}} } \right)^{ - 0.6}}$$
$${{\text{f}}^{ - 0.5}} = 4.07\,{\log _{\text{e}}}{\left( {{{\text{N}}_{{\text{Re}}}}\sqrt {\text{f}} } \right)^{ - 0.6}}$$
45. The fluid velocity varies as the square root of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop fo __________ fluid.
46. Permanent loss in a venturimeter is about __________ percent of the pressure drop in theupstream cone.
47. The pressure drop per unit length of pipe incurred by a fluid 'X' flowing through pipe is $$\Delta {\text{p}}.$$ If another fluid 'Y' having both the specific gravity & density just double of that of fluid 'X', flows through the same pipe at the same flow rate/average velocity, then the pressure drop in this case will be
48. The simple pitot tube measures the __________ pressure.
49. The peripherial velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec.
50. Which of the following is not a dimension-less parameter?
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