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. Semi-circle Parabola Hyperbola Semi-ellipse Semi-circle Parabola Hyperbola Semi-ellipse ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics With increase in molecular weight of the gas, the head developed by a centrifugal compressor will Unpredictable Increase Remain same Decrease Unpredictable Increase Remain same Decrease ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The ratio of inertial forces to gravity forces is called the __________ number. Weber Euler Froude Mach Weber Euler Froude Mach ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics As the velocity V and thus the Reynolds number of a flow past a sphere increases from very low value, the drag force for Re << 1 Decreases as V² Increases linearly with V None of these Decreases linearly with V Decreases as V² Increases linearly with V None of these Decreases linearly with V ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Boundary layer thickness in laminar flow over a flat plate increases as(where, d = distance from the leading edge.) d2 d2/3 d1/3 √d d2 d2/3 d1/3 √d ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics With the increase in depth, the hydrostatic pressure in an unaccelerated incompressible fluid (in a constant gravitational field) Increases exponentially Decreases Increases linearly Remains constant Increases exponentially Decreases Increases linearly Remains constant ANSWER DOWNLOAD EXAMIANS APP
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