Hydraulics and Fluid Mechanics in ME When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called Pascal’s law Principle of flotation Bernoulli’s theorem Archimedes’s principle Pascal’s law Principle of flotation Bernoulli’s theorem Archimedes’s principle ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A balloon lifting in air follows the following principle Archimedes principle law of gravitation principle of buoyancy All of these Archimedes principle law of gravitation principle of buoyancy All of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The speed of a pressure wave through a pipe depends upon the viscosity of fluid the bulk modulus for the fluid the length of pipe the original head the viscosity of fluid the bulk modulus for the fluid the length of pipe the original head ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The coefficient of discharge for an external mouthpiece is 0.855 0.5 0.707 0.375 0.855 0.5 0.707 0.375 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A vessel of 4 m3 contains oil which weighs 30 kN. The specific weight of the oil is 4.5 kN/m3 6 kN/m3 7.5 kN/m3 10 kN/m3 4.5 kN/m3 6 kN/m3 7.5 kN/m3 10 kN/m3 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 Hm Q) / ηo (w Hm) / (Q × ηo) (w Q) / (Hm × ηo) (w Q ηo) / Hm (w Hm Q) / ηo (w Hm) / (Q × ηo) (w Q) / (Hm × ηo) (w Q ηo) / Hm ANSWER DOWNLOAD EXAMIANS APP
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