Category: Fluid Mechanics

A. supersonics, as with projectiles and jet propulsion
B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity force, and wave making effects, as with ship’s hulls
D. all of fhe above
E. none of the above

A. The horizontal component of the hydro-static force on any surface is equal to the normal force on the vertical projection of the surface
B. The horizontal component acts through the center of pressure for the vertical projection
C. The vertical component of the hydrostatic force on any surface is equal to the weight of the volume of the liquid above the area
D. he vertical component passes through the center of pressure of the volume
E. Center of pressure acts at a greater depth than center of gravity

A. the direction and magnitude of the velocity at all points are identical
B. the velocity of successive fluid particles, at any point, is the same at successive periods of time
C. the magnitude and direction of the velocity do not change from point to point in the fluid
D. the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
E. velocity, depth, pressure, etc. change from point to point in the fluid flow

A. 2 meters of water column
B. 3 meters of water column
C. 5 meters of water column
D. 6 meters of water Column
E. 7 meters of water column

A. at the centre of gravity
B. above the centre of gravity
C. below be centre of gravity
D. could be above or below e.g. depend¬ing on density of body and liquid
E. unpredictable

A. Mach number
B. Froude number
C. Reynold’s number
D. Weber’s number
E. none of the above

D. keeps on increasing
B. keeps on decreasing
C. remains constant
D. may increase/decrease
E. unpredictable

A. h
B. wh
C. w/h
D. h/w
E. h/wh

A. viscous/unviscous fluids
B. compressibility of fluids
C. conservation of mass
D. steady/unsteady flow
E. open channel/pipe flow