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This quiz consists of 5 multiple choice and 5 short answer questions through "Reaction Begins" – "Epilogue".

Multiple Choice Questions

1. Who informed Otto Hahn that the Americans had just dropped an atomic bomb in Hiroshima?
(a) Bob Wilson.
(b) Richard Brennan.
(c) T. H. Rittner.
(d) Robert Serber.

2. What was the name of Paul Tibbets flying team that he developed in late 1944?
(a) The 219th Composite Group.
(b) The 509th Composite Group.
(c) The 109th Composite Group.
(d) The 49th Air Brigade.

3. Who informed Colonel Leslie Groves that he was selected for an important assignment in developing the atomic bomb?
(a) General Richard Brennan.
(b) General Scott Miller.
(c) General Lewis Strauss.
(d) General Brehon Somervell.

4. Who was Stalin's head of secret police in late 1944?
(a) Arne Kjelstrup.
(b) Anatoly Yatzkov.
(c) Samuel Goudsmit.
(d) Lavrenti Beria.

5. On what date did Klaus Fuchs confess to espionage for the Soviets?
(a) January 22, 1950.
(b) November 1, 1952.
(c) May 22, 1950.
(d) June 2, 1948.

Short Answer Questions

1. Who was the Army Chief of Staff in late 1943?

2. Who did Peter Ivanov send to talk to Robert Oppenheimer and feel out his Communist sensibilities at Berkeley?

3. What ship carried the uranium for its trip to Tinian?

4. What is the atomic number of uranium?

5. Where was Donald Hornig studying chemistry when he was offered a confidential job by his lab instructor?

(see the answer key)

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