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General Science MCQ practice free online · page 22

Questions from RRB, NTPC, Group D and JE past papers. Tap an option to check it instantly — every question shows the correct answer, and most carry the explanation the paper gave.

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  1. 211UPPSC2012General ScienceEnglish

    The diamond appears lustrous because of

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    Correct option: C — Total internal reflection

  2. 212UPSC1994General ScienceEnglish

    What is the reason behind the extraordinary shining of the diamond cuts in a proper way?

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    Correct option: B — Because it has a higher refractive index

  3. 213RPSC1999General ScienceEnglish

    The technique to integrate and mark the image of a three dimensional object is

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    Correct option: D — Holography

  4. 214UPPSC2008General ScienceEnglish

    Which of the following is used to take 3-dimensional pictures?

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    Correct option: B — Holography

  5. 215RPSC1994General ScienceEnglish

    The generating images on a screen by focusing an electronic beam on phosphorus coated screen is called

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    Correct option: C — Roster Scan

  6. 216RPSC1992General ScienceEnglish

    ‘Raman effect’ deals with the light rays passing through

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    Correct option: D — All transparent medium

  7. 217UPSC2000General ScienceEnglish

    For reproducing sound, a CD (Compact Disc) audio player uses a

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    Correct option: C — Laser beam

  8. 218UPSC2000General ScienceEnglish

    When a CD (Compact disc used in audio and video systems) is seen in Sunlight, rainbow-like colours is seen. This can be explained on the basis of the phenomenon of

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    Correct option: A — Reflection and diffraction

  9. 219UPPSC2010General ScienceEnglish

    Television signals cannot be received beyond a certain distance because

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    Correct option: D — The surface of the Earth is curved

  10. 220UPPSC2007General ScienceEnglish

    The technique used to transmit auto signals in television broadcasts is

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    Correct option: B — Frequency Modulation

General Science practice — common questions

Page 22 of this set has 10 questions on it.

Are these General Science questions free to practise?
Yes. Every question on this page is free and needs no account. Create a free account only if you want your progress saved.
Where do these General Science MCQs come from?
They are taken from official past papers of Indian government recruitment exams such as RRB NTPC, RRB Group D and RRB JE, and each question keeps a reference to the exam it appeared in.
Are the questions available in Hindi?
Yes. Many papers are set in both languages, so a large share of these questions are available in Hindi. Use the language filter at the top of the page.
Do the questions show answers and explanations?
Every question shows the correct option. Where the source paper included a worked solution, the explanation is shown under "Show answer".