Hydraulics and Fluid Mechanics in ME The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to Archimedes’ principle Bernoulli’s theorem Buoyancy Equilibrium of a floating body Archimedes’ principle Bernoulli’s theorem Buoyancy Equilibrium of a floating body ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge through a reaction turbine with increase in unit speed Increases First increases and then decreases Remain unaffected Decreases Increases First increases and then decreases Remain unaffected Decreases ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A weir, generally, used as a spillway of a dam is Broad crested weir Ogee weir Submerged weir Narrow crested weir Broad crested weir Ogee weir Submerged weir Narrow crested weir ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The Francis formula for the discharge over Cipoletti weir is 1.84 LH5/2 1.84 LH 1.84 LH1/2 1.84 LH3/2 1.84 LH5/2 1.84 LH 1.84 LH1/2 1.84 LH3/2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A compound pipe of diameter d1, d2 and d3 having lengths l1, l2 and l3 is to be replaced by an equivalent pipe of uniform diameter d and of the same length (l) as that of the compound pipe. The size of the equivalent pipe is given by l/d³ = (l₁/d₁³) + (l₂/d₂³) + (l₃/d₃³) l/d² = (l₁/d₁²) + (l₂/d₂²) + (l₃/d₃²) l/d⁴ = (l₁/d₁⁴) + (l₂/d₂⁴) + (l₃/d₃⁴) l/d⁵ = (l₁/d₁⁵) + (l₂/d₂⁵) + (l₃/d₃⁵) l/d³ = (l₁/d₁³) + (l₂/d₂³) + (l₃/d₃³) l/d² = (l₁/d₁²) + (l₂/d₂²) + (l₃/d₃²) l/d⁴ = (l₁/d₁⁴) + (l₂/d₂⁴) + (l₃/d₃⁴) l/d⁵ = (l₁/d₁⁵) + (l₂/d₂⁵) + (l₃/d₃⁵) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A vertically immersed surface is shown in the below figure. The distance of its centre of pressure from the water surface is (bd²/12) + x̅ b²/12 + x̅ d²/12 + x̅ (d²/12 x̅) + x̅ (bd²/12) + x̅ b²/12 + x̅ d²/12 + x̅ (d²/12 x̅) + x̅ ANSWER DOWNLOAD EXAMIANS APP
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