Fluid Mechanics Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, σ = surface tension of mercury) 1/d L/σ D Σ 1/d L/σ D Σ ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Specific speed of a centrifugal pump relates it with another pump having the Dynamic similarity Same speed Same efficiency Geometrical similarity Dynamic similarity Same speed Same efficiency Geometrical similarity ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics If two capillary tubes of dia 0.5 mm and 1 mm are dipped in a pot containing mercury, then the rise of mercury is Greater in 0.5 mm dia tube Same in both the tubes Greater in 1 mm dia tube Zero in both the tubes Greater in 0.5 mm dia tube Same in both the tubes Greater in 1 mm dia tube Zero in both the tubes ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The velocity profile exhibited by laminar flow of Newtonion fluids is such that the velocity distribution w.r.t. radius of the circular pipe is a/an __________ with the apex at the centre line of the pipe. Hyperbola Semi-circle Semi-ellipse Parabola Hyperbola Semi-circle Semi-ellipse Parabola ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Uniform fluid flow occurs, when the derivative of the flow variables satisfy the following condition. ∂/∂s = 0 ∂/∂t = constant ∂/∂t = 0 ∂/∂t = constant ∂/∂s = 0 ∂/∂t = constant ∂/∂t = 0 ∂/∂t = constant ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics What causes cavitation in centrifugal pump? High suction velocity Low suction pressure Low barometric pressure High suction pressure High suction velocity Low suction pressure Low barometric pressure High suction pressure ANSWER DOWNLOAD EXAMIANS APP
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