Hydraulics and Fluid Mechanics in ME If the weight of a body immersed in a fluid exceeds the buoyant force, then the body will rise until its weight equals the buoyant force float None of these tend to move downward and it may finally sink rise until its weight equals the buoyant force float None of these tend to move downward and it may finally sink ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The speed of a turbine runner is Directly proportional to H3/2 Inversely proportional to H1/2 Directly proportional to H1/2 Inversely proportional to H3/2 Directly proportional to H3/2 Inversely proportional to H1/2 Directly proportional to H1/2 Inversely proportional to H3/2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The shear stress between the two liquid layers is __________ proportional to the distance between two layers. Inversely Both A and B None of these Directly Inversely Both A and B None of these Directly ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A glass tube of small diameter (d) is dipped in fluid. The height of rise or fall in the tube given by (where w = Specific weight of liquid, α = Angle of contact of the liquid surface, and σ = Surface tension) 4σ cosα/wd wd/4σ cosα σ cosα/4wd 4wd/σ cosα 4σ cosα/wd wd/4σ cosα σ cosα/4wd 4wd/σ cosα ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Geometric similarity is said to exist between the model and the prototype, if both of them Are equal in size and shape Have identical velocities Are identical in shape, but differ only in size Have identical forces Are equal in size and shape Have identical velocities Are identical in shape, but differ only in size Have identical forces ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow) 0.577 D 0.707 D 0.223 D 0.423 D 0.577 D 0.707 D 0.223 D 0.423 D ANSWER DOWNLOAD EXAMIANS APP
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