Page 442 - statbility for masters and mates

430 Ship Stability for Masters and Mates
22. What is the formula for Bending Stress in terms of M, I and y?
23. Sketch a set of Hydrostatic Curves.
24. List three characteristics of an Angle of Loll.
25. De®ne (a) a moment and (b) a moment of inertia.
26. Sketch the ®rst three curves for a set of ship's Strength Curves.
27. What is the `theory of parallel axis' formula?
28. What are the effects on a Statical Stability curve for increased Breadth
and increased Freeboard?
29. Sketch a Metacentric Diagram for a box-shaped vessel and a triangular-
shaped vessel.
30. Block coef®cient is 0.715. Midship coef®cient is 0.988. Calculate
Prismatic coef®cient.
31. Describe the use of Simpson's Third Rule.
32. What is the wall-sided formula for GZ?
33. De®ne `permeability'. Give two examples relating to contents in a hold
or tank.
34. Give the equations for BM, box-shaped vessels and triangular-shaped
vessels?
35. List three characteristics of an Angle of List.
36. Sketch the Shear force and Bending Moment curves. Show their inter-
relation.
37. For a curve of seven equally spaced ordinates give Simpson's Second
Rule.
38. What is the formula for pressure of water on a lockgate situation?
39. When a weight is lifted from a jetty by a ship's derrick whereabouts
does its CG act?
40. Sketch a set of Freeboard Marks and label dimensions as speci®ed by
D.Tp.
41. Sketch a Displacement curve.
42. What is Morrish's formula for VCB?
43. For an inclining experiment how is tangent of the angle of list
obtained?
44. What do `a moment of statical stability' and `dynamical stability' mean?
45. Show the range of stability on an S/S curve having a very small initial
negative GM.
46. Breadth is 45 m. Draft is 15 m. What is the increase in draft at a list of 2
degrees?
47. What is the formula for loss of GM due to free surface effects in a slack
tank?
48. For what purpose is the Inclining Experiment made on ships?
49. What is the `true mean draft' on a ship?
50. When drydocking a ship there is a virtual loss in GM. Give two
formulae for this loss.
51. With Simpson's Rules, give formulae for M of I about (a) Amidships
and (b) Centre line.