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Altitude Corrections

Test your knowledge of altitude corrections in navigation with our comprehensive quiz! Chapter 4.1 covers essential concepts, including dip correction, which is the angular difference between the visible horizon and a true horizontal line. Explore questions on height of eyepoint (HE) and its relevance to dip correction, and solve practical problems involving sextant altitude corrections. This quiz is designed for junior navigators eager to strengthen their skills and understanding of nautical navigation principles.

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Altitude Corrections

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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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