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OPSC Prelims PYQs: Science and Tech

35 OPSC OAS prelims previous-year questions on Science and Tech with answers and explanations, for topic-wise Odisha Civil Services practice.

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    About this quiz

    35 questions on Science and Tech from past OPSC (OAS/OCS) Preliminary Examination papers. Each one shows the correct answer with a short explanation, and the year it was asked is given in brackets where known.

    More quizzes on this subject: Science & Technology MCQs for OAS (OPSC).

    Practice questions

    Sourced from the Odisha Public Service Commission where applicable. opsc.gov.in. EduSaint is not affiliated with OPSC.