SEPT. 30.] THE NEW ZEALAND GAZETTE. 3023

3. Which is the best arrangement for uniting web frames and stringers
   at their intersections? Give a sketch in illustration.

4. A vessel was inclined, in smooth water, to ascertain her initial
   stability, when it was found that by moving a weight of 40 tons
   across the deck a distance of 20 ft. she heeled from the vertical
   to an angle of 4°. Her displacement being 7,500 tons, what
   was her metacentric height?

5. Find by Simpson’s “First Rule” the area of the waterplane of a
   vessel 200 ft. long whose half-ordinates measure 0·4, 7·6, 10·4,
   14·8, 15·2, 13·6, 10·8, 7·8, and 2·2 ft. respectively.

6. METEOROLOGY.*
   Time allowed 1½ hours.

7. What are the principal causes which disturb the equilibrium of the
   atmosphere and produce winds?

8. What effect has height upon the temperature of the air? State
   the reason for this.

9. What are gusts and squalls, and how are they caused?

10. Describe what is known as a V-shaped depression.

11. State which is the dangerous and which the navigable semicircle
    in tropical revolving storms. Give your reasons for this.

12. Your ship is hove to on the starboard tack, heading north in the
    Northern Hemisphere, and the indications lead you to believe
    that a cyclone is approaching: supposing the wind to change to
    the north-east, what action would you take? State your
    reasons.

13. CHART.
    Time allowed 3 hours.

14. Early one morning during neap tides and about half an hour before
    high water at Dover, when steering S. 30° W. by compass,
    Great Castle Head lights were observed in transit bearing
    N. 63° E. The log then registered 97½ m. 16½ minutes later the
    red sector of Smalls light was entered, and after an interval of
    46 minutes the light turned white, log 110. The course was
    then altered to N. 4° E. by compass. On this course South
    Bishop Lt.-Ho. and Hill 444 (Ramsey Island) were observed
    in transit when abeam. When the log showed 122 the
    course was altered to N. 63° E. by compass, and soon after-
    wards Ramsey Hill opened eastward of North Bishop, bearing
    S. 19° E. When the log showed 146, Strumble Head Lt.-Ho.
    bore S. 3° W. by compass, and Kemmaes Head bore S. 71° E.
    by the same compass.
    Project the above traverse, making due allowance for tidal
    drift as indicated on the chart, and find the position of the ship
    at the time of leaving the red sector of Smalls light. Find
    also the distances from South Bishop and Strumble Head light-
    houses when abeam, the total distance made good, and the
    average speed, and also the deviation on each course steered.

15. Find the course to steer by compass, using deviation-card No. 5,
    in order to counteract the effect of the tidal stream as indicated
    on the chart 4 hours after high water at Dover, 10th September,
    1925, ship steaming 12 knots, to reach Mid-channel Rock buoy,
    from the following position: Smalls Lt.-Ho. 57°, Barrels Rock
    46°, Grassholm I. right extreme.

16. On 7th September, 1925, at 06 h. 45 m. standard time, being off
    Fishguard, took a cast of the lead and found the depth to be
    19 fathoms:
    Required—The depth marked on the chart in the position
    when the cast was obtained.

17. ESSAY.
    Time allowed 2 hours.
    A suitable technical subject will be selected by the Examiner.*

18. Specimen Set of Examination-papers for Extra Master :—

19. NAVIGATION AND NAUTICAL ASTRONOMY.
    Time allowed 3 hours.

20. On 15th January, 1925, at 19 h. 03 m. apparent time at ship,
    in lat. by account 34° 58′ S., long. 85° 45′ E., the sun set
    bearing by compass S. 76° W.

One of these papers will be omitted.