Q5) Choose the correct Answer 1-The viscosity of water with respect to air at 20°C is about a-50 b- 55 c- 60 d- 70 times 2-the unit of kinematic viscosity is a- Ns/m² b- m²/s c- m/kg d- kg/m²s 3- The centre of buoyancy is a- centre of gravity of the body bcentre of displaced fluid c-point of intersection of the buoyant force and the center line of the body 4- The continuity equation represents conservation of a- velocity b- momentum C- energy d-mass 5-If G is the center of gravity,B is center of buoyancy and M is metacentre of a floating body then for the body to be in unstable equilibrium if : a- MG=0 b- BG=0 c- M is below G d- M is above G