Hydraulics and Fluid Mechanics in ME Coefficient of velocity is defined as the ratio of Actual velocity of jet at vena contracta to the theoretical velocity Area of jet at vena contracta to the area of orifice None of these Actual discharge through an orifice to the theoretical discharge Actual velocity of jet at vena contracta to the theoretical velocity Area of jet at vena contracta to the area of orifice None of these Actual discharge through an orifice to the theoretical discharge 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 The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow) 0.577 D 0.223 D 0.423 D 0.707 D 0.577 D 0.223 D 0.423 D 0.707 D ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Barometer is used to measure Very low pressure Difference of pressure between two points Atmospheric pressure Pressure in pipes, channels etc. Very low pressure Difference of pressure between two points Atmospheric pressure Pressure in pipes, channels etc. ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Viscosity of water in comparison to mercury is Higher Higher/lower depending on temperature Lower Same Higher Higher/lower depending on temperature Lower Same ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Delivery head of a centrifugal pump is Directly proportional to N² Directly proportional to N Inversely proportional to N² Inversely proportional to N Directly proportional to N² Directly proportional to N Inversely proportional to N² Inversely proportional to N ANSWER DOWNLOAD EXAMIANS APP
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