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RFID technology - FASTag

1 UPSC Prelims MCQs tagged "RFID technology - FASTag". Free practice with answer keys, explanations, and timed mock tests on Anantam IAS.

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  1. Which of the following statement(s) is/are true regarding “FASTag” (RFID technology) used at toll…

    Which of the following statement(s) is/are true regarding "FASTag" (RFID technology) used at toll plazas?

    1. AOnly 1
    2. BOnly 2
    3. CBoth 1 and 2
    4. DNeither 1 nor 2
    Answer and explanation

    Correct answer: D

    Statement 1 is false — FASTag uses a PASSIVE RFID tag (energised by the reader's signal), not an active, battery-powered tag. Statement 2 is technically weak too: FASTag-style UHF RFID works through electromagnetic fields and radio-wave communication, so calling it 'electromagnetic induction' is imprecise. On a strict reading neither statement is correct → (D). (If the examiner used 'electromagnetic induction' loosely for electromagnetic communication, they might retain (B); but technically (D) is the sounder answer.)

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    Science & Technology UPSC GPSC-2026 Medium