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Which of the following is the main objective of the Threshold Test Ban Treaty ?

  • A.Ban on transfer of space technology to the non-nuclear states
  • B.Ban on transfer of nuclear technology to non-nuclear states
  • C.Ban on nuclear tests having a yield of more than 100 kilotons
  • D.Ban on underground nuclear tests having a yield of more than 150 kilotons

Answer: D

The Threshold Test Ban Treaty bans underground nuclear tests having a yield of more than 150 kilotons.

Signed by the US and the USSR in 1974, the treaty set a 'threshold' of 150 kilotons for underground nuclear weapon tests. Tests in the atmosphere, space and under water had already been banned by the Partial Test Ban Treaty of 1963.

The 100-kiloton figure is wrong, and the treaty has nothing to do with transferring nuclear or space technology to non-nuclear states, which is the concern of the Non-Proliferation Treaty and export-control regimes.

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