Fluid Mechanics Shear stress in a fluid flowing in a round pipe Remains constant over the cross-section Is zero at the wall and increases linearly to the centre Is zero at the centre and varies linearly with the radius Varies parabolically across the cross-section Remains constant over the cross-section Is zero at the wall and increases linearly to the centre Is zero at the centre and varies linearly with the radius Varies parabolically across the cross-section ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Unsteady non-uniform flow is represented by flow through a/an Long pipe at decreasing rate Long pipe at constant rate Expanding tube at increasing rate Expanding tube at constant rate Long pipe at decreasing rate Long pipe at constant rate Expanding tube at increasing rate Expanding tube at constant rate ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The fluid in which the shearing stress within it is proportional to the velocity gradient across the sheared section, is called a __________ fluid. Perfect None of these Newtonion Bingham Perfect None of these Newtonion Bingham ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The hydrodynamic and thermal boundary layers will merge, when Nusselt number tends to infinity Schmidt number tends to infinity Prandtl number is one Archimedes number is greater than 10000 Nusselt number tends to infinity Schmidt number tends to infinity Prandtl number is one Archimedes number is greater than 10000 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Boundary layer thickness in turbulent flow over a flat plate increases as(where, d = distance from the leading edge.) √d d1/3 d2/3 d4/5 √d d1/3 d2/3 d4/5 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10⁻⁶m²/s). 24 0.24 24000 0.44 24 0.24 24000 0.44 ANSWER DOWNLOAD EXAMIANS APP
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