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General Science MCQ practice free online · page 54

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. 531CGPSC2014General ScienceEnglish

    Which is not used as atomic fuel?

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    Correct option: D — Lead

  2. 532MPPSC2014General ScienceEnglish

    Which of the following is used in the preparation of Nuclear bombs?

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    Correct option: B — Uranium

  3. 533BPSC1994General ScienceEnglish

    The principle of atomic bomb is based on

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    Correct option: B — Nuclear fission

  4. 534UPPSC1994General ScienceEnglish

    The working principle of atom bomb is nuclear fission of uranium and the working principle of hydrogen bomb is

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    Correct option: A — Nuclear fusion of deuterium

  5. 535UPPSC2015General ScienceEnglish

    Hydrogen bomb was developed by

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    Correct option: A — Edward Teller

  6. 536UPPSC2009General ScienceEnglish

    Enriched Uranium is

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    Correct option: B — Natural uranium in which radioactive U²³⁵ isotope is increased artificially

  7. 537CGPSC2013General ScienceEnglish

    The ultimate product of radioactive disintegration of uranium is

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    Correct option: A — Lead

  8. 538UPSC2001General ScienceEnglish

    A radioactive substance has a halflife of four months. Three-fourth of the substance would decay in

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    Correct option: C — 8 months

  9. 539UPSC1994General ScienceEnglish

    The half-life of a radioactive element is 5 years, then the fraction of the radioactive substance that remains after 20 years is

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    Correct option: D — 1/16

  10. 540RPSC2007General ScienceEnglish

    The half-life of a radioactive substance is 10 days; it means there will be

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    Correct option: C — Decay of 3/4 part of substance in 20 days

General Science practice — common questions

Page 54 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".