Q 01/05

How many Japanese cities had conventional bombing already devastated before the atomic attacks?

A) 64

B) 80

C) 96

D) 120

Answer · why

A) 64

The campaign included the great Tokyo raid; the atomic bombings remain the only uses of nuclear weapons in war.

Q 02/05

What was the code name of the uranium gun-type bomb dropped on Hiroshima?

A) Fat Man

B) Little Boy

C) Thin Man

D) Trinity

Answer · why

B) Little Boy

Fat Man, the Nagasaki bomb, was a plutonium implosion weapon; Thin Man was an abandoned plutonium gun-type design.

Q 03/05

Roughly how much did the Manhattan Project cost, in the dollars of the day?

A) About $500 million

B) About $200 million

C) Over $2 billion

D) Over $10 billion

Answer · why

C) Over $2 billion

It employed more than 125,000 people at its peak, with bomb design carried out at Oppenheimer's Los Alamos Laboratory.

Q 04/05

Which US Army Air Forces unit under Colonel Paul Tibbets was created to deliver the bombs?

A) The 393rd Fighter Group

B) The 8th Air Force

C) The 20th Bomb Wing

D) The 509th Composite Group

Answer · why

D) The 509th Composite Group

It was activated in December 1944 at Wendover Field, Utah, and flew specially modified 'Silverplate' B-29 Superfortresses.

Q 05/05

From which island in the Marianas did the atomic missions take off?

A) Guam

B) Tinian

C) Saipan

D) Iwo Jima

Answer · why

B) Tinian

North Field on the island was about six hours' flying time from Japan.