Hydraulics and Fluid Mechanics in ME When the pressure intensity at a point is more than the local atmospheric pressure, then the difference of these two pressures is called Positive gauge pressure Vacuum pressure Absolute pressure Gauge pressure Positive gauge pressure Vacuum pressure Absolute pressure Gauge pressure ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury? The metal piece will be immersed in mercury by half The metal piece will simply float over the mercury Whole of the metal piece will be immersed with its top surface just at mercury level Metal piece will sink to the bottom The metal piece will be immersed in mercury by half The metal piece will simply float over the mercury Whole of the metal piece will be immersed with its top surface just at mercury level Metal piece will sink to the bottom ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For pipes, laminar flow occurs when Roynolds number is between 2000 and 4000 less than 4000 less than 2000 more than 4000 between 2000 and 4000 less than 4000 less than 2000 more than 4000 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 Hm) / (Q × ηo) (w Q ηo) / Hm (w Hm Q) / ηo (w Q) / (Hm × ηo) (w Hm) / (Q × ηo) (w Q ηo) / Hm (w Hm Q) / ηo ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Equation of continuity is based on the principle of conservation of None of these momentum energy mass None of these momentum energy mass ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The pressure of air __________ with the increase of height from the surface of the earth. None of these Does not change Increases Decreases None of these Does not change Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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