Fluid Mechanics Set 3

increases ✘ decreases ✘ remains constant ✘ increases first up to certain limit and then decreases ✔ unpredictable. ✔

has the dimensions of 1/pressure ✘ increases with pressure ✘ is large when fluid is more compressible ✘ is independent of pressure and viscosity ✔ is directly proportional to flow. ✔

law of gravitation ✘ Archimedes principle ✘ principle of buoyancy ✘ all of the above ✔ continuity equation. ✔

1000 ✘ 2100 ✘ 2700 ✘ 10000 ✔ 21000.00 ✔

cannot be subjected to shear forces ✘ always expands until it fills any container ✘ has the same shear stress.at a point regardless of its motion ✘ cannot remain at rest under action of any shear force ✔ flows. ✔

pressure ✘ flow ✘ shape ✘ volume ✔ temperature. ✔

are viscous ✘ possess surface tension ✘ are compressible ✘ possess all the above properties ✔ possess none of the above properties. ✔

resistance to shear stress is small ✘ fluid pressure is zero ✘ linear deformation is small ✘ only normal stresses can exist ✔ viscosity is nil. ✔

incompressible ✘ inviscous ✘ viscous and incompressible ✘ inviscous and compressible ✔ inviscous and incompressible. ✔

Newton's law of motion ✘ Newton's law of viscosity ✘ Pascal' law ✘ Continuity equation ✔ Boundary layer theory. ✔