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Altitude Correction Quiz: Dip & Sextant Corrections Explained

Test your knowledge of altitude corrections in navigation with a focus on dip correction and main sextant altitude corrections. Learn how to calculate dip corrections and adjust for sextant readings. Perfect for junior navigators.

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Altitude Correction Quiz: Dip & Sextant Corrections Explained

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  1. Altitude Corrections Quiz Q & A Junior Navigation Chapter 4

  2. 1. Dip correction is the angular difference between the visible horizon and a true horizontal. a. True b. False

  3. 2. A ship's captain takes a sight from the ship's rigging with a HE of 54 feet. His mate takes a sight from the deck of the ship with a HE of 18 feet. For which HE will the dip correction be greatest? HE of 54 feet

  4. 3. Find the dip correction: HECorrection 18 ft ____ 22 ft ____ 72 ft ____ -4.1' -4.5' -8.2'

  5. 4. For the following data, determine main sextant altitude corrections: Body Date ha Sun UL 21 June 17° 32.1' Sun LL 29 Sept 43° 46.0' Sun UL 29 Sept 43° 46.0' Sun LL 10 Mar 61° 41.6' Main -18.8' +15.0' -16.8' +15.7'

  6. Altitude Corrections End of Quiz Q & A Junior Navigation Chapter 4

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