With reference to radioisotope thermoelectric generators (RTGs), consider the following statements: 1. RTGs are miniature fission reactors. 2. RTGs are used for powering the onboard systems of spacecrafts. 3. RTGs can use Plutonium-238, which is a by-prod

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Q: 67 (IAS/2024)
With reference to radioisotope thermoelectric generators (RTGs), consider the following statements:
1. RTGs are miniature fission reactors.
2. RTGs are used for powering the onboard systems of spacecrafts.
3. RTGs can use Plutonium-238, which is a by-product of weapons development.
Which of the statements given above are correct?

question_subject: 

Science & Technology

question_exam: 

IAS

RTGs are not fission reactors; they use radioactive decay to produce electricity. They are indeed used in spacecraft for power, and Plutonium-238 is commonly used, which is a by-product of nuclear reactors, not weapons.