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 Varies parabolically across the cross-section Is zero at the centre and varies linearly with the radius Remains constant over the cross-section Is zero at the wall and increases linearly to the centre Varies parabolically across the cross-section Is zero at the centre and varies linearly with the radius ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics What is the force required (in Newtons) to hold a spherical balloon stationary in water at a depth of H from the air-water iterface? The balloon is of radius 0.1 m and is filled with air. 4πg/3 0.01πgH/4 0.04πgH/3 0.01πgH/8 4πg/3 0.01πgH/4 0.04πgH/3 0.01πgH/8 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics What is the ratio of displacement thickness to nominal thickness for a linear distribution of velocity in the boundary layer on a flat plate? 0.5 2 1 1.5 0.5 2 1 1.5 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Scale up of agitator design requires Both geometrical and dynamic similarity All of these Dynamic similarity only Geometrical similarity only Both geometrical and dynamic similarity All of these Dynamic similarity only Geometrical similarity only ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Which law/principle of solid mechanics is similar/equivalent to Newton's law of viscosity in fluid mechanics? Hooke Newton Newton Archimedes principle Hooke Newton Newton Archimedes principle ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The temperature in isentropic flow Does not depend on Mach number None of these Cannot drop and then increase again downstream Depends on Mach number only Does not depend on Mach number None of these Cannot drop and then increase again downstream Depends on Mach number only ANSWER DOWNLOAD EXAMIANS APP
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