A nozzle is generally made of

A. increase
B. decrease
C. remain same
D. increase/decrease depending on depth of immersion
E. unpredictable

A. the meta-center should lie above the center of gravity
B. the center of buoyancy and the center of gravity must lie on the same vertical line
C. a righting couple should be formed
D. all the above are correct
E. none of the above is correct

A. e.g. of body
B. center of pressure
C. center of buoyancy
D. metacentre
E. liquid surface

A. the direction and magnitude of the velocity at all points are identical
B. the velocity of successive fluid pai-ticles, at any point, is the same at suc¬cessive 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 plsr.e
E. velocity, depth, pressure, etc. change from point to point in the fluid flow