Paper 5

Note: Norie’s Nautical Table and Non-programmable Scientific calculator is                   permitted.

          Nautical Almanac of 1992 to be used.

 

Question No. 1 is Compulsory .  Answer any Three of the remaining .  All question  carry equal 10 marks.

 

1. In North latitude, the lower meridian altitude of a star of declination 30^o 50’N and 10^o 40’ by sextant.  If IE was 3.1’off the arc, and HE was 10m, find the latitude and compute the sextant altitude of the upper meridian passage.

 

2. Write short notes on the following: 10 Marks

(i) Twilights

(ii) ‘v’ and ‘d’ corrections in a nautical almanac

 

3. (a)  Explain with a neat diagram Solar eclipse, types and conditions for a solar eclipse to occur.   (5)

(b)   Describe the different phases of Moon with a suitable diagram     – 5 Marks

 

 

4. Explain with a neat diagram Solstices and equinoxes and significance of the eccentricity of the earth’s orbit. (10)

 

5. To a stationary observer, an unknown star bore 000°(T) with true altitude 78°12’. After about 12 hrs, the same star bore 180°(T)with true altitude 18°54’. Calculate the observer’s latitude and the declination of the star. (10)