Hydraulics and Fluid Mechanics in ME A flow is called hyper-sonic, if the Mach number is Less than unity Unity Between 1 and 6 None of these Less than unity Unity Between 1 and 6 None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For small discharge at high pressure, following pump is preferred Mixed flow Axial flow Reciprocating Centrifugal Mixed flow Axial flow Reciprocating Centrifugal ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, μ = Viscosity of the liquid, and w = Specific weight of the flowing liquid) 4μvl/wd² 32μvl/wd² 16μvl/wd² 8μvl/wd² 4μvl/wd² 32μvl/wd² 16μvl/wd² 8μvl/wd² ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The total energy of each particle at various places in the case of perfect incompressible fluid flowing in continuous stream Remain constant Keeps on increasing May increase/decrease Keeps on decreasing Remain constant Keeps on increasing May increase/decrease Keeps on decreasing ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy. Lies below None of these Lies above Coincides with Lies below None of these Lies above Coincides with 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/x̅) - Ax̅ (Ax̅/IG) + x̅ (IG/Ax̅) - x̅ (IG/Ax̅) + x̅ (IG/x̅) - Ax̅ (Ax̅/IG) + x̅ (IG/Ax̅) - x̅ ANSWER DOWNLOAD EXAMIANS APP
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