Hydraulics and Fluid Mechanics in ME According to fan laws, for the fans having constant wheel diameters, the power demand varies Square of fan speed Square root of fan speed Directly as fan speed Cube of fan speed Square of fan speed Square root of fan speed Directly as fan speed Cube of fan speed ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number) 16/RN 4/RN 64/RN 1/RN 16/RN 4/RN 64/RN 1/RN ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The sheet of water flowing over a notch or a weir is known as Nappe or vein None of these Orifice Sill or crest Nappe or vein None of these Orifice Sill or crest ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Dynamic viscosity of most of the liquids with rise in temperature Increases Unpredictable Decreases Remain unaffected Increases Unpredictable Decreases Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly enlarged to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden enlargement is (v₁ - v₂)²/g (v₁² - v₂²)/g (v₁² - v₂²)/2g (v₁ - v₂)²/2g (v₁ - v₂)²/g (v₁² - v₂²)/g (v₁² - v₂²)/2g (v₁ - v₂)²/2g ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For a body floating in a liquid the normal pressure exerted by the liquid acts at e.g. of the body metacentre bottom surface of the body all points on the surface of the body e.g. of the body metacentre bottom surface of the body all points on the surface of the body ANSWER DOWNLOAD EXAMIANS APP
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