Science & Technology PYQs

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1. Prelims 2009Q65Chemistry

   In a dry cell (battery), which of the following are used as electrolytes?

   aAmmonium chloride and Zinc chloridebSodium chloride and Calcium chloridecMagnesium chloride and Zinc chloridedAmmonium chloride and Calcium chloride
2. Prelims 2009Q67Biology & Human Body

   Consider the following statements:

   1.Sweet orange plant is propagated by grafting technique.

   2.Jasmine plant is propagated by layering technique.

   Which of the statements given above is/are correct?

   a1 onlyb2 onlycBoth 1 and 2dNeither 1 nor 2
3. Prelims 2009Q68Physics

   Which one of the following types of waves are used in a night vision apparatus ?

   aRadio wavesbMicrowavescInfra-red wavesdNone of the above
4. Prelims 2009Q69Biology & Human Body

   In the context of genetic disorders, consider the following:

   A woman suffers from colour blindness while her husband does not suffer from it. They have a son and a daughter. In this context, which one of the following statements is most probably correct ?

   aBoth children suffer from colour blindnessbDaughter suffers from colour blindness while son does not suffer from itcBoth children do not suffer from colour blindnessdSon suffers from colour blindness while daughter does not suffer from it
5. Prelims 2009Q72Chemistry

   Which one of the following is used as an explosive ?

   aPhosphorus trichloridebMercuric oxidecGraphitedNitroglycerine
6. Prelims 2009Q73Biology & Human Body

   Consider the following :

   1.Camphor

   2.Chicory

   3.Vanilla

   Which of the above is/are plant product(s) ?

   a1 and 2 onlyb3 onlyc1 and 3 onlyd1, 2 and 3
7. Prelims 2009Q118Physics

   Which one among the following has the highest energy ?

   aBlue lightbGreen lightcRed lightdYellow light
8. Prelims 2009Q128Space Technology

   India has recently landed its Moon Impact Probe on the Moon. Among the following countries, which one landed such probe on the Moon earlier ?

   aAustraliabCanadacChinadJapan
9. Prelims 2009Q136Defence & Nuclear Technology

   In the context of Indian defence, consider the following statements :

   1.The Shourya missile flies with a speed of more than 8 Mach.

   2.The range of Shourya missile is more than 1600 km.

   Which of the statements given above is/are correct ?

   a1 onlyb2 onlycBoth 1 and 2dNeither 1 nor 2
10. Prelims 2009Q137IT & Communication

    WiMAX is related to which one of the following ?

    aBiotechnologybSpace technologycMissile technologydCommunication technology
11. Prelims 2009Q139Biology & Human Body

    In making the saffron spice, which one of the following parts of the plant is used ?

    aLeafbPetalcSepaldStigma
12. Prelims 2009Q140Inventions & Scientists

    In the year 2008, which one of the following conducted a complex scientific experiment in which sub-atomic particles were accelerated to nearly the speed of light ?

    aEuropean Space AgencybEuropean Organization for Nuclear ResearchcInternational Atomic Energy AgencydNational Aeronautics and Space Administration
13. Prelims 2009Q149Biology & Human Body

    With reference to the evolution of living organisms, which one of the following sequences is correct?

    aOctopus – Dolphin – SharkbPangolin – Tortoise – HawkcSalamander – Python – KangaroodFrog – Crab – Prawn
14. Prelims 2008Q8Chemistry

    What is Bisphenol A (BPA)?

    aA medical test for detecting cancerbA test for testing the use of drugs to improve performance by athletescA chemical used for the development of food-packaging materialsdA special type of alloy steel
15. Prelims 2008Q18Space Technology

    Selene-1, the lunar orbiter mission belongs to which one of the following?

    aChinabEuropean UnioncJapandUSA
16. Prelims 2008Q19Defence & Nuclear Technology

    From which one of the following did India buy the Barak anti-missile defence systems?

    aIsraelbFrancecRussiadUSA
17. Prelims 2008Q28Biology & Human Body

    In which one of the following kinds of organisms is the phenomenon found wherein the female kills the male after copulation?

    aDragonflybHoneybeecSpiderdPit viper
18. Prelims 2008Q30Biology & Human Body

    Which one of the following is an insectivorous plant?

    aPassion flower plantbPitcher plantcNight queendFlame of the forest
19. Prelims 2008Q33Space Technology

    ISRO successfully conducted a rocket test using cryogenic engines in the year 2007. Where is the test-stand used for the purpose, located?

    aBalasorebThiruvananthapuramcMahendragiridKarwar
20. Prelims 2008Q35Health & Diseases
    C.Rangarajan has been actively involved in the Pan-Asian Commission addressing to which one of the following issues?

    aPromotion of tourism in the Asian regionbImpact of HIV/AIDS in the Asian regioncPromotion of free trade in the Asian regiondHigher technical education in the universities in the Asian region