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(e) To find the index error of a sextant.
To check chronometers by signal made by buzzer or other method; to corapare two chronometers.
14. The examiner may ask the candidate questions arising out of the writte work. If he deems it necessary on account of weakness shown by the candidate.
15. Signals. To send and receive signals in
(1) British Seraphore up to eight words per minute.
(2) Morse Code by dash lamp up to six words per minute.
(3) International Code of Signals.
FIRST MATE (POREIGN-GOING).
16. Paper 1. (written).
Practical Navigation. (3 hours),
(This paper may include questions on the syllabus for Second Male, ex-
tended to include the Moon and Planets)}
(1) To calculate the approximate time (to the nearest minute), of the meri dian passage of a heavenly body; to calculate an approximate altitude for setting the sextant to obtain the meridian altitude of a "heavenly body. To find the latitude by the meridian altitude of a heavenly body.
(2) To find the direction of the position line and a position through which it passes from an observation of a heavenly body near or out of the meridian.
(3) To obtain the ship's position by the combination of any two observa- tions with ar without run.
(4) To calculate the initial course and the distance on a Great Circle or Composite Great Circle track between two positions and to determine oos or more positions on the track.
17. Paper 2. (written).
Chart Work and Pilotage. (2 hours).
In addition to the syllabus for Second Mate questions on the following may be asked either in the written or oral parts of this paper.
(1) Distance of sighting lights, distance from a point of land of knoVO height.
(2) Construction and use of a line of soundings. The use of a single posi- tion line in approaching the coast. The use of Wireless Beacos.
(3) To find the times and heights of high and low water at a Secondary Port (Admiralty Tide Tables) by the use of Tidal Differences.
(4) Candidates will be examined orally on the reliability of charts. Section of suitable points for bearings. Approaching an anchorage and entering narrow waters. Landfalls in thick and clear weather.
(5) The candidate may be examined orally_or_practically on the use of i Gnomonic chart and the transfer of a Great Circle or Composite track from such a chart to a Mercator chart and on the use of Lattice Charts.
18. Paper 3. (written).
Ship Construction and Stability. (3 hours)
(1) A general knowledge of the principal structural members of a ship. The proper names of the various parts. Midship sections of Single deck, Tweco deck and Shelter deck ships and Bulk-oil cartiers. Functions, construction and stiffening of watertight bulkheads, including collision bulkhead. Stern frame and stem and how secured. Rudders and the methods of attachment. Construction,
stiffening and closing arrangements of batchways Hawse-pipes and how secured. Rivets and riveting. Testing a line of rivets. Testing of tanks and other water- light work.
(2) Stresses and strains in ships in a seaway or due to leading and ballast- ing. A knowledge of those parts of a ship specially strengthened to withstand such stresses, or where damage by excessivò córrosion is liable to occur.
(3) Ability to set out in a clear manner a report on damage sustained during
■ voyage.
(4) Buoyancy and Reserve buoyancy. The righting couple when a ship is inclined by external force. Transverse and Longitudinal Metacentres. Meta- centric Height. Initial Stability and its limitation to small angles of inclination. The computation of areas by Simpson's First and Second Rules and the Five- dichu Rule.
(5) Determination of Centre of Gravity of a ship in a new condition, the Centre of Gravity in the old condition being given. The effect on the position of the Centre of Gravity of adding, removing or shifting weight. Süff and bender obipa
(6) Change in stability during a voyage. Effect of a shift of cargo or solid ballast. The danger of "free kurface" of liquids (without proofs or calculations).
(7) Change of trim. (M.C.T.I" and C.F. given).
(3) Use of stability curves and dala supplied to a ship.
19. Paper 4. (written).
Meteorology. (2 hours),
(1) The principles of the barometer, mercurial and aneroid, Marine mer- curial barometer. How to read and reduce the readings to standard datum.
The use of the Gold slide. Barograph.
(2) The principles of the thermometer and hygrometer and their uses at sea. (3) The principle and use of the hydrometer.
(4) A knowledge of the distribution of mean pressure and the prevailing winds and current systems of the globe. Relationship between pressure distribu- tion and wind. Buys Ballot's Law.
(5) The characteristics of, and weather associated with, the principal pres- pare systems, e.g. anticyclones, depressions. Permanent and semi-permanent anti- cyclones and depressions and their effects, e.g. Trades, Monsoons,
(6) Tropical revolving storms, their localities, seasons and tracks,
Rules for avoiding tropical storms, Use of barometric observations at a Mogle alation in conjunction with weather signs.
D) Water vapour in the atmosphere, evaporation, condensation, precipita- tea, meaning of saturation, relative humidity, formation of clouds, fog and mist.
(8) Anabatic and Katabatic Winds. Land and Sea Breezes.
9) The Beaufort wind scale and weather notation in use at sea. Method
of estimating direction and force of wind at sea.
(10) A knowledge of the types of weather messages adopted by the Inter- national Meteorological Organization which are available to shipping. Coding and decoding messages contained in Parts V and VI of Weather Message for Stipping.
20. Paper 3. (written).
Ship Maintenance. Routine and Cargo Work. (3 hours).
(1) Keeping a ship's log. (Mate's log).
(2) Organization of crew for routine, maintenance and duties,