CURRENT AFFAIRS

Detailed explanation-1: -The U.S. carried out its last weapons test on September 23, 1992, with the detonation in Nevada of an approximately 20-kiloton device codenamed Divider. (A kiloton is equivalent to a thousand tons of TNT; the atomic bomb that destroyed Hiroshima was about 15 kilotons.)

Detailed explanation-2: -The U.S. tested a nuclear weapon (codenamed Able) on Bikini Atoll on June 30, 1946. This was followed by Baker on July 24, 1946 (dates are Universal Time, local dates were July 1 and 25, respectively). The United States began using the Marshall Islands as a nuclear testing site beginning in 1946.

Detailed explanation-3: -The overwhelming majority of the nuclear weapon test detonations were for “weapons development” and “weapons effects” purposes.

Detailed explanation-4: -Kennedy signed the ratified treaty on October 7, 1963. The treaty: prohibited nuclear weapons tests or other nuclear explosions under water, in the atmosphere, or in outer space. allowed underground nuclear tests as long as no radioactive debris falls outside the boundaries of the nation conducting the test.