Hydraulics and Fluid Mechanics in ME Power required (in watts) to drive a centrifugal pump is (where Hm = Manometric head in metres, w = Specific weight in N/m3, Q = Discharge of the pump in m3/s, and ηo = Overall efficiency of the pump) (w Q ηo) / Hm (w Q) / (Hm × ηo) (w Hm Q) / ηo (w Hm) / (Q × ηo) (w Q ηo) / Hm (w Q) / (Hm × ηo) (w Hm Q) / ηo (w Hm) / (Q × ηo) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The maximum hydraulic efficiency of an impulse turbine is (where φ = Angle of blade tip at outlet) (1 + sin φ)/2 (1 + cos φ)/2 (1 - sin φ)/2 (1 - cos φ)/2 (1 + sin φ)/2 (1 + cos φ)/2 (1 - sin φ)/2 (1 - cos φ)/2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When a cylindrical vessel containing liquid is revolved about its vertical axis at a constant angular velocity, the pressure Varies as the square of the radial distance Increases as the square of the radial distance Decreases as the square of the radial distance Increases linearly as its radial distance Varies as the square of the radial distance Increases as the square of the radial distance Decreases as the square of the radial distance Increases linearly as its radial distance ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface. H/2 2H/3 H/3 3H/4 H/2 2H/3 H/3 3H/4 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A weir is said to be broad crested weir, if the width of the crest of the weir is ________ half the height of water above the weir crest. More than Equal to Less than None of these More than Equal to Less than None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The value of friction factor ‘f’ for smooth pipes for Reynolds number 106 is approximately equal to 0.1 0.01 0.001 0.0001 0.1 0.01 0.001 0.0001 ANSWER DOWNLOAD EXAMIANS APP
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