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 24000 0.44 0.24 24 24000 0.44 0.24 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Velocity of liquid hydrocarbon fuels in a pipeline can not be measured by magnetic flowmeters, because their __________ is very low/small. Electrical conductivity Thermal conductivity Specific gravity Electrical resistivity Electrical conductivity Thermal conductivity Specific gravity Electrical resistivity ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The length of the tube necessary for the boundary layer to reach the centre of the tube and for fully developed flow to be established is called the __________ length. Prandtl mixing Transition Equivalent None of these Prandtl mixing Transition Equivalent None of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The head loss in turbulent flow in a pipe varies As velocity Inversely as the square of diameter As (velocity)² Inversely as the velocity As velocity Inversely as the square of diameter As (velocity)² Inversely as the velocity ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A 2" gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is > Δp Δp² < Δp Δp > Δp Δp² < Δp Δp ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Which law/principle of solid mechanics is similar/equivalent to Newton's law of viscosity in fluid mechanics? Newton Hooke Archimedes principle Newton Newton Hooke Archimedes principle Newton ANSWER DOWNLOAD EXAMIANS APP