Hydraulics and Fluid Mechanics in ME A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is 0.46 0.64 0.87 0.78 0.46 0.64 0.87 0.78 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The center of gravity of the volume of the liquid displaced by an immersed body is called center of buoyancy metacentre center of pressure center of gravity center of buoyancy metacentre center of pressure center of gravity ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The efficiency of a Pelton wheel working under constant head ________ with the increase in power. None of these Remain same Decreases Increases None of these Remain same Decreases Increases 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 6 kN/m3 10 kN/m3 4.5 kN/m3 7.5 kN/m3 6 kN/m3 10 kN/m3 4.5 kN/m3 7.5 kN/m3 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The unit power developed by a turbine is (where P = Power developed by the turbine under a head of water (H). P/ H3/2 P/ H P/ H² P/ √H P/ H3/2 P/ H P/ H² P/ √H ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The specific speed of a turbine is the speed of an imaginary turbine, identical with the given turbine, which Delivers unit discharge under unit head Develops unit power under unit speed Develops unit power under unit head Delivers unit discharge under unit speed Delivers unit discharge under unit head Develops unit power under unit speed Develops unit power under unit head Delivers unit discharge under unit speed ANSWER DOWNLOAD EXAMIANS APP
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