New Zealand Gazette – 1930 – No. 87

Page 3830

✨ Maritime Examination Papers



3830

THE NEW ZEALAND GAZETTE.

[No. 87

  1. Arriving off Manukau Bar at 14 h. 00 m., New Zealand mean time,
    on 16th September, 1929, state the depth of water you would
    expect to find on the bar if the soundings on the chart showed
    3½ fathoms.

  2. Chart 695: Find approximately (without the use of Admiralty
    or other tide-tables) the time of high water on the afternoon
    of 14th June, 1929, off Stephens Island, and state also the
    direction of the tidal stream at 10 h. 00 m. on that day.

SPECIMEN SET OF EXAMINATION-PAPERS FOR MASTER (H.T.).

1. NAVIGATION.

Time allowed: Two hours.

  1. On 2nd February, 1929, long. by A/c 176° E., the observed
    meridian altitude of the sun's lower limb was 72° 18' north of
    observer; index error of sextant 1' 10" to subtract; height
    of eye 22 ft.

Compute the latitude.

  1. In a vessel steering S.E. by compass and steaming 10 knots a
    light is observed bearing S.S.E. by compass, and after making
    good the course and speed for 24 minutes the light was observed
    to bear south by compass.

Required—The course to be steered to enable the vessel
to pass 2 miles off the light.

  1. Having taken the following compass bearings of a distant object,
    find the magnetic bearing and thence the deviation on each of
    the given courses.
Ship's Head Bearing by Deviation Ship's Head Bearing by Deviation
by Standard Standard required. by Standard Standard required.
Compass. Compass. Compass. Compass.
North N. 69° E. South S. 86° E.
N.E. N. 54° E. S.W. S. 82° E.
East N. 60° E. West S. 83° E.
S.E. N. 78° E. N.W. East
  1. The bearing of two objects when in line with each other was found
    on the chart to be S. 80° W. mag., but when brought in line on
    board they bore S. 76° W. by compass.

Required—The deviation of the compass for the direction
of the ship's head at the time.

  1. When taking a meridian altitude, how do you know when the
    sun is on the meridian; or, in other words, when it is noon?

  2. How does the sun bear (true and magnetic) when on the meridian
    of an observer in these latitudes (home-trade limits).

  3. What do you mean by the "deviation" of the compass, and how
    is it caused?

  4. Having determined the deviation, how do you know when it is
    easterly and when westerly?

  5. How could you find the deviation of your compass when in port
    or when sailing along a coast?

  6. Name some suitable objects by which you could readily obtain
    the deviation of your compass when sailing along the coasts,
    or the channels you have been accustomed to use.

  7. What means are there for checking the deviation of your compass
    by night?

  8. Do you expect the deviation to change? If so, state under what
    circumstances.

  9. What is meant by the "variation" of the compass, and what is
    the cause of it?

2. NAVIGATION.

Time allowed: Two hours.

  1. 1929, 10th June, p.m., in D.R. long. 173° 30' E., the observed
    altitude of the sun's lower limb was 12° 4' when a chronometer
    indicated 05 h. 03 m. 20 s. Eye elevated 30 ft. Sextant error
    2'.0 off the arc. The chronometer was 14 m. 10 s. fast of M.T.G.
    Later, after the ship had made 12 miles on a 130° course, the
    latitude by meridian altitude of the star Regulus was found
    to be 40° 18' S.

Required—The longitude by chronometer at the time when
the meridian altitude of Regulus was observed.



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✨ LLM interpretation of page content

🚂 Specimen Set of Examination-Papers for Mate (H.T.) (continued from previous page)

🚂 Transport & Communications
Maritime, Examination, Navigation, Arithmetic, Chart, Mate

🚂 Specimen Set of Examination-Papers for Master (H.T.)

🚂 Transport & Communications
Maritime, Examination, Navigation, Master, Chart, Compass