Hydraulics and Fluid Mechanics in ME Surface tension Is a function of the curvature of the interface Is also known as capillarity Decreases with fall in temperature Acts in the plane of the interface normal to any line in the surface Is a function of the curvature of the interface Is also known as capillarity Decreases with fall in temperature Acts in the plane of the interface normal to any line in the surface ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When a body is placed over a liquid, it will float if Gravitational force is less than the up-thrust of the liquid Gravitational force is equal to the up-thrust of the liquid None of these Gravitational force is more than the up-thrust of the liquid Gravitational force is less than the up-thrust of the liquid Gravitational force is equal to the up-thrust of the liquid None of these Gravitational force is more than the up-thrust of the liquid ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The optimum value of vane exit angle for a centrifugal pump impeller is 10-15° 50-60° 20-25° 30-40° 10-15° 50-60° 20-25° 30-40° ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The force exerted by a jet of water (in a direction normal to flow) impinging on a fixed plate inclined at an angle θ with the jet is (waV/g) × sin θ (waV²/2g) × sin 2θ (waV²/g) × sin θ (waV/2g) × sin θ (waV/g) × sin θ (waV²/2g) × sin 2θ (waV²/g) × sin θ (waV/2g) × sin θ ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A turbine is required to develop 1500 kW at 300 r.p.m. under a head of 150 m. Which of the following turbine should be used? Kaplan turbine Pelton wheel with two or more nozzles Francis turbine Pelton wheel with one nozzle Kaplan turbine Pelton wheel with two or more nozzles Francis turbine Pelton wheel with one nozzle ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A metal with specific gravity of 'a' floating in a fluid of same specific gravity 'a' will Partly immersed Float over fluid Be fully immersed with top surface at fluid surface Sink to bottom Partly immersed Float over fluid Be fully immersed with top surface at fluid surface Sink to bottom ANSWER DOWNLOAD EXAMIANS APP
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