2023 GS Paper I, all questions

UPSC Prelims 2023 · GS Paper I

Question 57: Science and Technology

Which one of the following countries has its own Satellite Navigation System?

aAustralia
bCanada
cIsrael
dJapan

AnswerUPSC’s answer is (d).

Japan operates its own regional satellite navigation system, the Quasi-Zenith Satellite System (QZSS). Australia, Canada and Israel have no navigation system of their own and use others. The global systems are GPS (United States), GLONASS (Russia), Galileo (European Union) and BeiDou (China), and India's NavIC is regional.

Why each option is right or wrong
  • (a) Australia has no satellite navigation system of its own.
  • (b) Canada has no satellite navigation system of its own.
  • (c) Israel has no satellite navigation system of its own.
  • (d) Correct: Japan has QZSS.

Answer: UPSC’s key. Explanation: written by UPSC Grade, not by UPSC.

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Source: UPSC, Civil Services (Preliminary) Examination 2023, General Studies Paper I, Series A. The paper on upsc.gov.in.