Science & Technology PYQs

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1. Prelims 2007Q30Physics

   Three identical vessels A, B and C are filled with water, mercury and kerosene respectively up to an equal height. The three vessels are provided with identical taps at the bottom of the vessels. If the three taps are opened simultaneously, then which vessel is emptied first?

   aVessel BbAll the vessels A, B and C will be emptied simultaneouslycVessel AdVessel C
2. Prelims 2007Q35Biology & Human Body

   In the human body, to which structure is the appendix attached?

   aThe large intestinebThe small intestinecThe gall-bladderdThe stomach
3. Prelims 2007Q60Inventions & Scientists

   Which one of the following pairs is not correctly matched?

   aWilliam Dickson : Motion Picture FilmbCharles Babbage : Programmable ComputercNicholas Stern : Construction TechnologydBrian Greene : String Theory
4. Prelims 2007Q61Chemistry

   Which one of the following is called Philosopher’s wool?

   aZinc BromidebZinc NitratecZinc OxidedZinc Chloride
5. Prelims 2007Q62Chemistry

   Which one of the following does not contain silver?

   aHorn SilverbGerman SilvercRuby SilverdLunar Caustic
6. Prelims 2007Q63Chemistry

   Which one of the following types of glass can cut off ultraviolet rays?

   aSoda glassbPyrex glasscJena glassdCrookes glass
7. Prelims 2007Q64Chemistry

   Which one of the following non-metals is NOT a poor conductor of electricity?

   aSulphurbSeleniumcBrominedPhosphorus
8. Prelims 2007Q65Chemistry

   Which one of the following is another name of RDX?

   aCyanohydrinbDextrancCyclohexanedCyclonite
9. Prelims 2007Q70Inventions & Scientists

   Who among the following is considered as the inventor of the World Wide Web (WWW)?

   aEdward KasnerbBill GatescTim Berners-LeedVinod Dham
10. Prelims 2007Q89Inventions & Scientists

    Robert Webster is known for his work associated with which one of the following?

    aCardiologybInfluenza viruscHIV/AIDSdAlzheimer
11. Prelims 2007Q102Space Technology

    NASA’s Deep Impact space mission was employed to take detailed pictures of which comet nucleus?

    aHalley’s cometbHale-BoppcHyakutakedTempel 1
12. Prelims 2007Q109Defence & Nuclear Technology

    Recently, the European Union and six other countries including India signed the International Thermonuclear Experimental Reactor (ITER) Project.

    Which one of the following was NOT a signatory to it?

    aCanadabChinacJapandUSA
13. Prelims 2007Q117Inventions & Scientists

    What is the broad area in which the Nobel Prize winners for the year 2006 in Physiology or Medicine worked to get the prize?

    aPrevention of weakening due to ageingbFlow of genetic informationcImmunology and disease resistancedAdult stem-cell research
14. Prelims 2007Q120Space Technology

    Consider the following statements:

    1.In the year 2006, India successfully tested a full-fledged cryogenic stage in rocketry.

    2.After USA, Russia and China, India is the only country to have acquired the capability for use of cryogenic stage in rocketry.

    Which of the statements given above is/are correct?

    a1 onlyb2 onlycBoth 1 and 2dNeither 1 nor 2
15. Prelims 2007Q121Defence & Nuclear TechnologyAnswer disputed

    Consider the following statements:

    1.In November 2006, DRDO successfully conducted the interception test using Prithvi-II missile.

    2.Prithvi-II is a surface-to-surface missile and can be deployed to guard the metros against air attack.

    Which of the statements given above is/are correct?

    a1 onlyb2 onlycBoth 1 and 2dNeither 1 nor 2
16. Prelims 2007Q138Physics

    Consider the following statements :

    1.If magenta and yellow coloured circles intersect, the intersected area will have red colour.

    2.If cyan and magenta coloured circles intersect, the intersected area will have blue colour.

    Which of the statements given above is/are correct?

    a1 onlyb2 onlycBoth 1 and 2dNeither 1 nor 2
17. Prelims 2007Q139Physics

    Consider the following statements:

    1.A flute of smaller length gives waves of lower frequency.

    2.Sound travels in rocks in the form of longitudinal elastic waves only.

    Which of the statements given above is/are correct?

    a1 onlyb2 onlycBoth 1 and 2dNeither 1 nor 2
18. Prelims 2007Q140Physics

    Four wires of the same material and of the dimensions given below are stretched by equal loads separately. Which one of them will be elongated the maximum?

    aWire of 1 m length and 2 mm diameterbWire of 2 m length and 2 mm diametercWire of 3 m length and 1.5 mm diameterdWire of 1 m length and 1 mm diameter
19. Prelims 2007Q145Biology & Human Body

    Which one of the following parts of the pitcher plant becomes modified into a pitcher?

    aStembLeafcStipuledPetiole
20. Prelims 2007Q150Physics

    Assertion (A): A jet aircraft moving at Mach number equal to 1 travels faster at an altitude of 15 km than while moving at Mach number equal to 1 near sea level.

    Reason (R): The velocity of sound depends on the temperature of the surrounding medium.

    aBoth A and R are true and R is the correct explanation of AbBoth A and R are true but R is NOT the correct explanation of AcA is true but R is falsedA is false but R is true