21. Which law/principle of solid mechanics is similar/equivalent to Newton's law of viscosity in fluid mechanics?
22. What causes cavitation in centrifugal pump?
23. For a stable equilibrium of a submerged body (where, G and B are centres of gravity & buoyancy respectively).
24. The variable required to be known in correlations used for estimating the horse power of a centrifugal gas compressor and hence its cost are P. Inlet pressure Q. Compressor rpm R. Delivery pressure S. Volumetric flow rate at inlet.
25. Momentum transfer in laminar flow of fluids results due to the
26. The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke's law range is proportional to the
27. Cd is always __________ Cc.
28. Velocity distribution for flow between two fixed parallel plates
29. A fluid is pumped at the rate of 10 lb/sec to a height of 55 ft. The horse power required is __________ hp.
30. In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said to have the same hydraulic roughness, when they have equal values of
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