Hydraulics and Fluid Mechanics in ME The discharge of a double acting reciprocating pump is (where L = Length of stroke, A = Cross-sectional area of piston, and N = Speed of crank in r.p.m.) (2 L.A.N)/60 (L.A.N)/60 L.A.N 2 L.A.N (2 L.A.N)/60 (L.A.N)/60 L.A.N 2 L.A.N ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The centre of pressure acts __________ the centre of gravity of immersed surface. Below Above At None of these Below Above At None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be Higher than the surface of liquid Unpredictable The same as the surface of liquid Lower than the surface of liquid Higher than the surface of liquid Unpredictable The same as the surface of liquid Lower than the surface of liquid ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, and x = Depth of centre of gravity of the immersed surface from the liquid surface) (IG/Ax̅) - x̅ (IG/Ax̅) + x̅ (Ax̅/IG) + x̅ (IG/x̅) - Ax̅ (IG/Ax̅) - x̅ (IG/Ax̅) + x̅ (Ax̅/IG) + x̅ (IG/x̅) - Ax̅ ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The intensity of pressure on an immersed surface __________ with the increase in depth. Does not change Increases Decreases None of these Does not change Increases Decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a Francis turbine runner, the numbers of blades are generally between 8 to 16 16 to 24 2 to 4 4 to 8 8 to 16 16 to 24 2 to 4 4 to 8 ANSWER DOWNLOAD EXAMIANS APP
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