Hydraulics and Fluid Mechanics in ME A body floats in stable equilibrium When its e.g. is below its center of buoyancy Metacentre has nothing to do with position of e.g. for determining stability When the metacentre is above e.g. When its meatcentric height is zero When its e.g. is below its center of buoyancy Metacentre has nothing to do with position of e.g. for determining stability When the metacentre is above e.g. When its meatcentric height is zero ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The hydraulic grade line is All of these always sloping downward in the direction of flow always above the centre line of pipe never above the energy grade line All of these always sloping downward in the direction of flow always above the centre line of pipe never above the energy grade line ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If a pump is handling water and is discharging a certain flow Q at a constant total dynamic head requiring a definite B.H.P., the same pump when handling a liquid of specific gravity 0.75 and viscosity nearly same as of water , the horse power required will be H.P./0.75 Same 1.5 B.H.P 0.75 B.H.P H.P./0.75 Same 1.5 B.H.P 0.75 B.H.P ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The factional resistance of a pipe varies approximately with __________ of the liquid. Cube of velocity Square of velocity Velocity Pressure Cube of velocity Square of velocity Velocity Pressure ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The relation between hydraulic efficiency (ηh), mechanical efficiency (ηm) and overall efficiency (ηo) is ηm = ηm × ηh None of these ηo = ηh × ηm ηh = ηo × ηm ηm = ηm × ηh None of these ηo = ηh × ηm ηh = ηo × ηm ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A square surface 3 m × 3 m lies in a vertical line in water pipe its upper edge at water surface. The hydrostatic force on square surface is 9,000 kg 13,500 kg 18,000 kg 27,000 kg 9,000 kg 13,500 kg 18,000 kg 27,000 kg ANSWER DOWNLOAD EXAMIANS APP
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