Hydraulics and Fluid Mechanics in ME In an immersed body, centre of pressure is Could be above or below e.g. depending on density of body and liquid Below be centre of gravity Above the centre of gravity At the centre of gravity Could be above or below e.g. depending on density of body and liquid Below be centre of gravity Above the centre of gravity At the centre of gravity ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Power required (in watts) to drive a centrifugal pump is (where Hm = Manometric head in metres, w = Specific weight in N/m3, Q = Discharge of the pump in m3/s, and ηo = Overall efficiency of the pump) (w Hm Q) / ηo (w Hm) / (Q × ηo) (w Q ηo) / Hm (w Q) / (Hm × ηo) (w Hm Q) / ηo (w Hm) / (Q × ηo) (w Q ηo) / Hm (w Q) / (Hm × ηo) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Unit of surface tension is Both of the above It has no units Velocity/unit area Energy/unit area Both of the above It has no units Velocity/unit area Energy/unit area ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. The saving in case of a double acting reciprocating pump is 0.488 0.884 0.392 0.848 0.488 0.884 0.392 0.848 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The liquid used in manometers should have High surface tension Low surface tension Low density High density High surface tension Low surface tension Low density High density ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as Steady flow Vortex flow Turbulent flow Uniform flow Steady flow Vortex flow Turbulent flow Uniform flow ANSWER DOWNLOAD EXAMIANS APP
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