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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 12: A Tale of Two Portraits.

Multiple Choice Questions

1. Were Harrison's clocks in working order before being taken for tests at the Royal Observatory?
(a) Maskelyne said they "were not" in working order.
(b) Maskelyne said they "most definetly" were in working order.
(c) Maskelyne said they "appeared to be" in working order.
(d) Maskelyne said they "needed a tune up" to be in working order.

2. Huygen's clocks went on a number of voyages. On the third voyage to the Cape Verde Islands, what did his clock do?
(a) Stopped working midway through the voyage because of the temperature change.
(b) Sent the ship 50 miles off course.
(c) Made the ship arrive three weeks ahead of schedule.
(d) Kept good track of the ship's longitude.

3. What does the coiled balance spring do in clocks?
(a) Allows the navigator to know the time in the home port.
(b) Prevents the pendulum from losing time.
(c) Prevents waves from destabilizing the clock.
(d) Allows the clock to keep a constant temperature.

4. What did George Graham give Harrison?
(a) A book on the mechanics of clockmaking.
(b) A model clock.
(c) A loan to build his first clock.
(d) A pass to the Royal Observatory.

5. Hooke nor Huygens were able to:
(a) Get the Royal Society to declare a winner.
(b) Collaborate on a working clock.
(c) Produce a clock that worked at sea.
(d) Collect on the monetary prize offered for solving the problem of longitude.

Short Answer Questions

1. Why did Maskelyne think Harrison shouldn't win the longitude prize?

2. How long did it take Harrison to build H1?

3. When Harrison was asked to hand his plans over to the British government, what was his reaction?

4. What kind of solution to the longitude problem did the Board of Longitude originally desire?

5. Which clock did Harrison become dissatisfied with and never made to sea?

(see the answer key)

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