Memorize these and you could recognize 28.5% of all Engineering clues.
| # | Answer | Appearances | Sample Clue |
|---|---|---|---|
| 1 | the Army Corps of Engineers | 4 | Founded in 1802, this military group surveys roads & canals, builds lighthouses & maps navigation channels |
| 2 | Dam | 3 | This massive project was the first in North America to contain more masonry than the Great Pyramid at Giza |
| 3 | the Skywalk | 2 | This horseshoe-shaped, glass-bottomed structure extends 4,000 feet over the Colorado River in the Grand Canyon |
| 4 | the pyramids | 2 | The only contemporaneous man-made objects taller than the Pharos of Alexandria Lighthouse |
| 5 | the Panama Canal | 2 | 20th century engineering feat whose slogan was "The land divided, the world united" |
| 6 | the Great Wall of China | 2 | A 1984 survey found an additional 2,500 miles to this barrier, now totaling 6,200 miles long |
| 7 | the Golden Gate Bridge | 2 | In 1937 its chief engineer wrote a poem about it, mentioning its "titan piers" & the "Redwood Empire" to the north |
| 8 | the Alaska Pipeline | 2 | Able to carry over 2 million barrels of crude a day, it runs from Prudhoe Bay to Valdez |
| 9 | Pennsylvania | 2 | Built in 1865, America's first successful oil pipeline was 2" wide & traveled 5 miles in this state |
| 10 | iron | 2 | About 7,000 tons of this material were used to build the Eiffel Tower |
| 11 | France | 2 | Country which tried to build a canal across Panama before we did it |
| 12 | electrical engineering | 2 | 16th c. scientist William Gilbert is called the father of this type of engineering; a device he invented detected charge |
| 13 | an artesian well | 2 | Type of well named for the French region of Artois where 1 was 1st drilled in 1126 |
| 14 | an aqueduct | 2 | Used extensively by the Romans, it's a bridge built to transport water, not people |
| 15 | a suspension bridge | 2 | The George Washington Bridge over the Hudson River is this type of bridge |
| 16 | the arch | 2 | Though Romans used this support principle for aqueducts, it wasn't applied to dams until the 6th C. |