HYDRAULICS & FLUID MECHANICS QUIZ

the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane

the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time

the magnitude and direction of the velocity do not change from point to point in the fluid

the direction and magnitude of the veiocity at all points are identical

only when the fluid is incompressible and has zero viscosity

irrespective of the motion of one fluid layer relative to an adjacent layer

When there is no motion of one fluid layer relative to an adjacent layer

only when the fluid is frictionless

the pressure intensity reaches a minimum

the boundary layer comes to rest

the cross-section of a channel is reduced

All of these

decrease

increase

increase/decrease depending on depth of immersion

remain same

kg sec/metre

metre2/se

newton-sec/metre

newton-sec/metre2

lift

drag

boundary layer

wake

below the center of buoyancy

above the center of buoyancy

between e.g. and center of pressure

above the center of gravity.

cohesion

surface tension

friction

viscosity

9810 PA

981 PA

1 PA

91 PA

the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time

velocity, depth, pressure, etc. change from point to point in the fluid flow

the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane

the direction and magnitude of the velocity at all points are identical