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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. Who took Nathaniel Bliss's spot on the Board of Longitude?
(a) Thomas Bradley.
(b) John Harrison.
(c) Nevil Maskelyne.
(d) He was not replaced.

2. Why was Maskelyne against Harrison?
(a) Maskelyne wanted to use his lunar-distance method to solve the problem of longitude.
(b) Maskelyne was jealous of the support Harrison was getting from the Board of Longitude.
(c) Maskelyne disliked Harrison's family.
(d) Maskelyne was supportive of Harrison but didn't believe his clocks would work.

3. The Board of Longitude demanded Harrison hand over the H-4 so it could be used by whom?
(a) The Air Force.
(b) The Navy.
(c) The Army.
(d) The Marines.

4. What was the main point of Harrison's first presentation before the Board of Longitude?
(a) He articulated the promise of an astronomical solution.
(b) He demonstrated how H-1 worked.
(c) He complained about H-1's errors.
(d) He presented how H-1 would solve the longitude problem.

5. What did Harrison need to do to prove the H-4 worked?
(a) Make two copies to prove that it could be duplicated.
(b) Draw the plans before the Board of Longitude.
(c) Label an astronomical map.
(d) Take it apart and put it back together.

Short Answer Questions

1. What does the coiled balance spring do in clocks?

2. Who completed the first working pendulum clock?

3. What did Huygen's published argument state?

4. After successfully testing the H-4, how much of the Longitude Prize did Harrison receive?

5. After successfully completing the H-4, who passed an act that placed new restrictions on Harrison?

(see the answer key)

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