Hydraulics and Fluid Mechanics in ME A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is 1 7 5 6 1 7 5 6 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to Equilibrium of a floating body Buoyancy Archimedes’ principle Bernoulli’s theorem Equilibrium of a floating body Buoyancy Archimedes’ principle Bernoulli’s theorem ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The torque required to overcome viscous resistance of a footstep bearing is (where μ = Viscosity of the oil, N = Speed of the shaft, R = Radius of the shaft, and t = Thickness of the oil film) μπ²NR³/60t μπ²NR²/60t μπ²NR⁴/60t μπ²NR/60t μπ²NR³/60t μπ²NR²/60t μπ²NR⁴/60t μπ²NR/60t ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Head developed by a centrifugal pump depends on Impeller diameter Both (A) and (B) above Speed Fluid density Impeller diameter Both (A) and (B) above Speed Fluid density ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The property of fluid by virtue of which it offers resistance to shear is called viscosity surface tension cohesion adhesion viscosity surface tension cohesion adhesion ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The loss of head at entrance in a pipe is (where v = Velocity of liquid in the pipe) 0.375v²/2g 0.5v²/2g 0.75v²/2g v²/2g 0.375v²/2g 0.5v²/2g 0.75v²/2g v²/2g ANSWER DOWNLOAD EXAMIANS APP
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