Hydraulics and Fluid Mechanics in ME When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called Pascal’s law Principle of flotation Archimedes’s principle Bernoulli’s theorem Pascal’s law Principle of flotation Archimedes’s principle Bernoulli’s theorem ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Kinematic similarity is said to exist between the model and the prototype, if both of them Are equal in size and shape Have identical forces Have identical velocities Are identical in shape, but differ only in size Are equal in size and shape Have identical forces Have identical velocities Are identical in shape, but differ only in size ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For pipes, laminar flow occurs when Roynolds number is more than 4000 less than 2000 less than 4000 between 2000 and 4000 more than 4000 less than 2000 less than 4000 between 2000 and 4000 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When an internal mouthpiece is running free, the discharge through the mouthpiece is (where a = Area of mouthpiece, and H = Height of liquid above the mouthpiece) 0.707 a. √2gH √2gH 0.5 a. √2gH 0.855 a. √2gH 0.707 a. √2gH √2gH 0.5 a. √2gH 0.855 a. √2gH ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta. 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 ratio of the inertia force to the viscous force is called Euler's number Froude's number Weber's number Reynold's number Euler's number Froude's number Weber's number Reynold's number ANSWER DOWNLOAD EXAMIANS APP
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