0
*
THE HONG KONG GOVERNMENT GAZETTE, DECEMBER 24, 1930. 705
(4) Hygiene of ships, living spaces, holds, etc. Water. Fresh and preserved food. Infectious diseases. The law relating to them and the pro- cedure on board in such case. Quarantine pro- cedure. Recognition and simple treatment of common illness, e.g., fevers, etc. [See the Ship Captain's Medical Guide.)
(5) The carriage of emigrants.
(c) A simple knowledge of the law relating to cargo, in- cluding a knowledge of shipowners' liabilities in carriage of
cargo.
(d) A general knowledge of shipping business and docu- ments-charter parties, bills of lading, etc. A knowledge of average-general and particular. Flotsam and jetsam.
53. Paper 6. (Written.)
Magnetic Compass. (2 hours.)
Proofs of formulae not required
(a) Terrestial magnetism Variation. Local attraction. Horizontal force and its varying strength in different parts of the globe with the effect of its change upon deviation.
(b) Properties of magnets:-Meaning of the terms "Hard" and "Soft" Tron. Effect of magnets on a compass needle under varving conditions. Precautions with regard to electric lighting loads and other electric fields. Sub- permanent magnetism and its effects at sea.
:--
(c) Compass compensation Methods of swinging ship to obtain a deviation table. Use of curves of deviation. Constant semi-circular and quadrantal deviation. To analyse a table of deviation, obtaining and explaining the approximate co-efficients A, B, C, D, E. General principle of compass correction and the method of correction of B, C and D.
(d) Heeling error:-The nature of the deviation caused and the effect on a ship with a list and when rolling. Method of correction.
(e) A candidate may be required, at some stage in the examination, to carry out certain practical operations of correction on a compass in a binnacle, and/or to construct a deviation table for that compass.
54. Paper 7. (Written.) Engineering knowledge (including carriage of refrigerated cargoes). (3 hours.)
(The requirements will not go beyond the knowledge that could be obtained by a deck officer who takes an in- telligent interest in the machinery of the ship and supplements by a little reading what he has learnt in this way.)
(a) The meaning of general engineering terms, e.g. horse power, slip and pitch of propeller, link, latent heat of steam, superheated steam, etc.
A general knowledge of a marine boiler and furnaces, and the procedure for raising steam. The general action of a reciprocating steam engine. Principle of the condenser. Distribution of steam from boiler to engines-valves and pipelines. Admission
Admission to engine-slide valves, eccentrics,
A
Page 20Page 21
No comments yet.
Private notes are available after approval.