Hydraulics and Fluid Mechanics in ME The mercury does not wet the glass. This is due to the property of the liquid known as Adhesion Cohesion Viscosity Surface tension Adhesion Cohesion Viscosity Surface tension ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME To avoid an interruption in the flow of a syphon, an air vessel is provided ay nay point between inlet and outlet at the summit at the inlet at the outlet ay nay point between inlet and outlet at the summit at the inlet at the outlet ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If the net positive suction head (NPSH) requirement for the pump is not satisfied, then Efficiency will be low Excessive power will be consumed Cavitation will be formed No flow will take place Efficiency will be low Excessive power will be consumed Cavitation will be formed No flow will take place 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 Q) / (Hm × ηo) (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) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ? 0.5 0.515 0.5 0.4 0.5 0.515 0.5 0.4 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For laminar flow in circular pipes, the Darcy’s friction factor f is equal to 64/ Re 16/Re 32/ Re None of these 64/ Re 16/Re 32/ Re None of these ANSWER DOWNLOAD EXAMIANS APP
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