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 Q ηo) / Hm (w Hm) / (Q × ηo) (w Hm Q) / ηo (w Q) / (Hm × ηo) (w Q ηo) / Hm (w Hm) / (Q × ηo) (w Hm Q) / ηo (w Q) / (Hm × ηo) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The cavitation in reaction turbines is avoided, to a great extent by Using stainless steel runner of the turbine Providing highly polished blades to the runner Installing the turbine below the tail race level All of these Using stainless steel runner of the turbine Providing highly polished blades to the runner Installing the turbine below the tail race level All of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The specific weight of sea water is __________ that of pure water. Same as Less than More than None of these Same as Less than More than None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When the Mach number is between ___ the flow is called super-sonic flow. 1 and 2.5 2.5 and 4 4 and 6 1 and 6 1 and 2.5 2.5 and 4 4 and 6 1 and 6 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is ap-proximately 5 mm 20 mm 30 mm 10 mm 5 mm 20 mm 30 mm 10 mm ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A flow in which the volume of a fluid and its density does not change during the flow is called _________ flow. None of these Incompressible Compressible Viscous None of these Incompressible Compressible Viscous ANSWER DOWNLOAD EXAMIANS APP
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