Fluid Mechanics The Prandtl mixing length is Independent of the shear stress Zero at the pipe wall and is a universal constant Independent of radial distance from the pipe axis Useful for computing laminar flow problems Independent of the shear stress Zero at the pipe wall and is a universal constant Independent of radial distance from the pipe axis Useful for computing laminar flow problems ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Shear stress in a fluid flowing in a round pipe Is zero at the wall and increases linearly to the centre Remains constant over the cross-section Is zero at the centre and varies linearly with the radius Varies parabolically across the cross-section Is zero at the wall and increases linearly to the centre Remains constant over the cross-section Is zero at the centre and varies linearly with the radius Varies parabolically across the cross-section ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Volume of liquid displaced by a floating body is equivalent to its Own volume Own weight Submerged volume Submerged weight Own volume Own weight Submerged volume Submerged weight ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The head loss in turbulent flow in a pipe varies Inversely as the velocity Inversely as the square of diameter As velocity As (velocity)² Inversely as the velocity Inversely as the square of diameter As velocity As (velocity)² 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.) d1/3 √d d2/3 d4/5 d1/3 √d d2/3 d4/5 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The temperature in isentropic flow 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 Does not depend on Mach number None of these Cannot drop and then increase again downstream ANSWER DOWNLOAD EXAMIANS APP
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