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This quiz consists of 5 multiple choice and 5 short answer questions through Horenburg's Knife.

Multiple Choice Questions

1. Of the certified scuba divers in the United States, about how many dove deep for shipwrecks?
(a) About two hundred.
(b) 150.
(c) A few hundred.
(d) 500.

2. Where was the German-American club located that Kohler went to to find translators for the German books he purchased?
(a) Perth Amboy.
(b) Burlington.
(c) Tinton Falls.
(d) Beachwood.

3. How old was Nagle in 1991?
(a) 38.
(b) 42.
(c) 40
(d) 36.

4. In the 1970s and 1980s, how deep would Nagle and other kings of the sport descend when diving?
(a) 225 feet.
(b) 175 feet.
(c) 200 feet.
(d) 150 feet.

5. At sea level, what percent of oxygen would a person breathe?
(a) 21 percent.
(b) 38 percent.
(c) 44 percent.
(d) 50 percent.

Short Answer Questions

1. What U-boat was on display at Chicago's Museum of Science and Industry?

2. What was the name of the neighbor who instilled a love of German heritage in Kohler's father?

3. What was the name of the charter captain who would pass around a bucketful of broken dishes and broken silverware and tell customers that a someone died for that stuff?

4. At what depths does a deep-shipwreck diver's judgment and motor skills become impaired?

5. Where was the sunken U-boat U-853 located?

(see the answer key)

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