EXERCISE-20

  1. On the morning of 30th Nov 1992, in DR 390 50’N 1000 12’E, the observed altitude of MARS was 4802’ at 11h 42m 52s chron time. The chron error was 01m 10s slow. If HE was 22m, find the direction of the PL and a position through which it passes.
Solution –1A 1B 1C
  1. On 22nd Sept 1992, PM ship in DR 400 21’S 1400 12’W, the sextant altitude of SATURN was 5406’ when the chron (error 11m 31s fast) showed 04h 15m 42s. If HE was 20m and IE was 3.2’ on the arc, required the direction of the PL and a position through which it passes.
Solution –2A 2B 2C
  1. On 17th Jan 1992, AM at ship in DR 310 41’N 1000 10’E the sextant altitude of VENUS was 1906’ when the chron (error 02m 06s fast) showed 11h 41m 44s. If IE was 2.1’ on the arc and HE was 12m, find the direction of the PL and a positive through which to draw it.
Solution –3A 3B 3C
  1. On 1st May 1992, PM at ship in DR 190 54’S 1790 58’W, the sextant altitude of JUPITER was 520 38’5’ when the chron (error 01m 10s fast) showed 06h 21m 52s. If IE was 0.2’ off the arc and HE was 17m, find the direction of the PL and a position through which it passes.
Solution – 4A 4B 4C
  1. On 1st Dec 1992, PM at ship in DR 290 56’S 1060 14’E, the sextant altitude of SATURN was 4608’ when chron (error 05m 01s slow) showed 12h 18m 33s. If IE was 1.3’ off the arc and HE was 14m, find the direction of PL and the longitude where it crosses the DR lat.
Solution –5A 5B 5C

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From Marine Enclyopedia to MARINE GYAAN ACADEMY in Lucknow - Preparing YOUTH to become SEAFARERS ( for IMU-CET and various courses) From Marine Enclyopedia to MARINE GYAAN ACADEMY in Lucknow - Preparing YOUTH to become SEAFARERS ( for IMU-CET and various courses) From Marine Enclyopedia to MARINE GYAAN ACADEMY in Lucknow - Preparing YOUTH to become SEAFARERS ( for IMU-CET and various courses) From Marine Enclyopedia to MARINE GYAAN ACADEMY in Lucknow - Preparing YOUTH to become SEAFARERS ( for IMU-CET and various courses)