Section A

TERRESTRIAL NAVIGATION

1. Define the following:

(a). Great Circle. (b). Nautical Mile. (c). Dlat.

(d). Prime Meridian. (e). Equator. (10)

2. (a). If the ship’s course by compass was 165°(C), Find the True course? Variation

3°W.Deviation as per Deviation card I. Also find Compass Error. (5)

(b). Find the compass course to steer, if the true course is 135° (T) Variation 4°E.

Deviation as per Deviation Card I. (5)

3. (a). Find the true course if the Gyro course is 265° (G) and the Gyro Error is

1°HIGH. (5)

(b). Find the Gyro course to steer, if the true course is 252°(T) and the Gyro Error is

2° LOW. (2)

(c). what are Isogonic and Agonic lines? (3)

4. (a). A vessel left a position in Lat. 39° 00′ S. Long. 30° 08′ W. and travelled due East

until her Longitude was 25° 22′ W. How many miles did she travel? (5)

(b). In what latitude will 120 miles departure be equal to 145’ dlong ? (5)

5. (a). A vessel left position Lat. 41° 44′ S. on a course of 158°. Find the distance she

had travelled on reaching the parallel of 48° 16′ S. (5)

(b). A vessel travelled for 245.0 miles on a Course of 062° (T). Find the D. Lat. And

Departure using Traverse Tables. (5)

6. Find the course and distance from Position A 03° 45’N 043° 27’W to Position B

at 25° 21’N 048° 53’W using Mercator Sailing method.

# QUESTION PAPER 5

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