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This quiz consists of 5 multiple choice and 5 short answer questions through Chapters 6-10.

Multiple Choice Questions

1. How long does the radioactivity of potassium-40 last?
(a) 100,000 years.
(b) 9 trillion years.
(c) 2 million years.
(d) A billion years.

2. At what temperature did the columns of the World Trade Center become vulnerable to buckling?
(a) 1,200 degrees F.
(b) 1,100 degrees F.
(c) 1,500 degrees F.
(d) 1,800 degrees F.

3. How long were the steel columns of the World Trade Center designed to maintain their strength during an ordinary fire?
(a) 6 hours.
(b) 1 hour.
(c) 2 to 3 hours.
(d) 4 to 5 hours.

4. How many tons of gasoline mixed with air and detonated from a parachute, release the energy of over 100 tons of TNT?
(a) 9.
(b) 7.
(c) 5.
(d) 8.

5. When was it rumored that Saddam Hussein tested a dirty bomb?
(a) 1979.
(b) 1987.
(c) 1981.
(d) 1977.

Short Answer Questions

1. When did North Korea test its first atomic bomb?

2. When was the Davy Crockett nuclear device exploded in a test?

3. How many horsepower do car engines deliver?

4. How many gama rays were the firefighters of Chernobyl exposed to?

5. How much more natural radioactivity are people living in Denver exposed to than someone in New York City?

(see the answer key)

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