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Marine chronometer: Quiz

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Question 1: The ________ harnessed to a spring solved most of the problems associated with the ship's motion.
ClockEscapementBalance wheelWatch

Question 2: To find their ________, however, they needed a time standard that would work aboard a ship.
RWMLongitudeDCF77HBG (time signal)

Question 3: [20] For example: the French were well established in ________ and other places before Britain colonized or trade, but were defeated by naval forces in the Seven Years' War.
Research and Analysis WingIndia and the Non-Aligned MovementIndiaLok Sabha

Question 4: What does the following picture show?

  Pierre Le Roy marine chronometer, 1766.
  Drawings of Harrison's H4 chronometer of 1761, in The principles of Mr Harrison's time-keeper, 1767.[6]
  Henry Sully (1680-1729) presented a first marine chronometer in 1716.
  The marine "Chronometer" of Jeremy Thacker used gimbals and a bell jar in a vacuum.

Question 5: What does the following picture show?

  The marine "Chronometer" of Jeremy Thacker used gimbals and a bell jar in a vacuum.
  Ferdinand Berthoud marine chronometer no.3, 1763.
  Henry Sully (1680-1729) presented a first marine chronometer in 1716.

Question 6: What does the following picture show?

  Henry Sully (1680-1729) presented a first marine chronometer in 1716.
  Harrison's Chronometer H5, 1772.
  The marine "Chronometer" of Jeremy Thacker used gimbals and a bell jar in a vacuum.

Question 7: Ships and boats commonly utilize electronic aids to navigation, such as LORAN and ________.
Global Positioning SystemGlobal navigation satellite systemCompass navigation systemGalileo (satellite navigation)

Question 8: ________, following his invention of the pendulum clock in 1656, made the first attempt at a marine chronometer in 1673 in France, under the sponsorship of Colbert.
Gottfried LeibnizIsaac NewtonChristiaan HuygensOptics

Question 9: A marine chronometer is a timekeeper precise enough to be used as a portable time standard; it can therefore be used to determine longitude by means of ________.
Lunar distance (navigation)Celestial navigationGlobal Positioning SystemAir navigation

Question 10: What does the following picture show?

  Ferdinand Berthoud marine chronometer no.3, 1763.
  Henry Sully (1680-1729) presented a first marine chronometer in 1716.
  Harrison's Chronometer H5, 1772.
  Pierre Le Roy marine chronometer, 1766.







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