Fluid Mechanics Set 4

2.4 m above the hydraulic gradient ✘ 6.4 m above the hydraulic gradient ✘ 10.0 m above the hydraulic gradient ✘ 5.0 above the hydraulic gradient ✔ none of the above. ✔

at the inlet ✘ at the outlet ✘ at the summit ✘ ay nay point between inlet and outlet ✔ none of the above. ✔

less man the vapour pressure over the plane surface ✘ equal to the vapour pressure over the plane surface ✘ greater than the vapour pressure over the plane surface ✘ zero ✔ none of the above. ✔

force of adhesion ✘ force of cohesion ✘ force of friction ✘ force of diffusion ✔ none of die above. ✔

viscosity ✘ air resistance ✘ surface tension forces ✘ atmospheric pressure ✔ none of the above. ✔

atmospheric pressure ✘ surface tension ✘ force of adhesion ✘ force of cohesion ✔ viscosity. ✔

1 mm ✘ 5 mm ✘ 10 mm ✘ 20 mm ✔ 30 mm. ✔

p = Txr ✘ p = T/r ✘ p = T/2r ✘ p = 2T/r ✔ none of the above. ✔

cohesion pressure is negligible ✘ cohesion pressure is decreased ✘ cohesion pressure is increased ✘ there is no cohesion pressure ✔ none of the above. ✔

mass of liquid displaced ✘ viscosity of the liquid ✘ pressure of the liquid displaced ✘ depth of immersion ✔ none of the above. ✔