Science & Technology PYQs

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1. Prelims 2006Q4Physics

   In which one among the following is the speed of sound maximum?

   aAir at 0 °CbAir at 100 °CcWaterdWood
2. Prelims 2006Q5Chemistry

   Consider the following chemicals:

   1.Benzene

   2.Carbon tetrachloride

   3.Sodium carbonate

   4.Trichloroethylene

   Which of the above is/are used as dry-cleaning chemicals?

   a1 onlyb2 onlyc1, 2 and 4 onlyd1, 2, 3 and 4
3. Prelims 2006Q6Health & Diseases

   Consider the following statements:

   1.Caffeine, a constituent of tea and coffee, is a diuretic.

   2.Citric acid is used in soft drinks.

   3.Ascorbic acid is essential for the formation of bones and teeth.

   4.Citric acid is a good substitution for ascorbic acid in our nutrition.

   Which of the statements given above are correct?

   a1 and 2 onlyb1, 2 and 3 onlyc3 and 4 onlyd1, 2, 3 and 4
4. Prelims 2006Q14Biology & Human Body

   What is the name of the vessel that delivers the nutrient-rich blood from the stomach and small intestine to the liver?

   aLeft hepatic arterybHepatic veincRight hepatic arterydHepatic portal vein
5. Prelims 2006Q15Biology & Human Body

   Consider the following statements with reference to the human body:

   1.The common bile duct releases its contents into the stomach.

   2.The pancreatic duct releases its contents into the duodenum.

   Which of the statements given above is/are correct?

   a1 onlyb2 onlycBoth 1 and 2dNeither 1 nor 2
6. Prelims 2006Q19ChemistryAnswer disputed

   Assertion (A): Cellulose is used in making shatter-proof glass.

   Reason (R): Polysaccharides are not soluble in water.

   aBoth A and R are true and R is the correct explanation of AbBoth A and R are true but R is not a correct explanation of AcA is true but R is falsedA is false but R is true
7. Prelims 2006Q28Defence & Nuclear Technology

   In which one of the following areas did the Indira Gandhi Center for Atomic Research make significant progress in the year 2005?

   aRe-processing the uranium-plutonium mixed carbide fuel of the Fast Breeder Test ReactorbNew applications of radio-isotopes in metallurgycA new technology for production of heavy waterdA new technology for high-level nuclear waste management
8. Prelims 2006Q41Health & Diseases

   Consider the following statements:

   1.Meningococcal Meningitis is transmitted from person to person by mosquito bites.

   2.Vomiting and neck pain are two of the symptoms of Meningococcal meningitis.

   Which of the statements given above is/are correct?

   a1 onlyb2 onlycBoth 1 and 2dNeither 1 nor 2
9. Prelims 2006Q47Biotechnology

   Which one of the following pairs is not correctly matched?

   Recent Scientific Achievement : Country

   aCreating the World’s first mouse : United KingdombCloning a human embryo for the first time : GermanycGuiding a spacecraft for collision with a comet : United States of AmericadLanding a spacecraft on an asteroid : Japan
10. Prelims 2006Q48Health & Diseases

    Which one among the following is not a good source of nutritional calcium?

    aRicebRagicSkimmed milkdEgg
11. Prelims 2006Q49Inventions & Scientists

    Which of the following pairs is/are correctly matched?

    Inventor : Invention

    1.Christopher Cockerell : Hovercraft

    2.David Bushnell : Submarine

    3.J. C. Perrier : Steamship

    Select the correct answer using the code given below:

    a1, 2 and 3b1 and 2 onlyc2 and 3 onlyd1 and 3 only
12. Prelims 2006Q64Space Technology

    Consider the following statements in respect of India's advanced satellite INSAT–4A :

    1.INSAT–4A was launched in December, 2005 from New Mexico.

    2.The European commercial launch service provider Arianespace was associated with the launch of INSAT–4A.

    3.Tata-Sky—a digital cable service provider is associated with DTH television broadcasting services from INSAT-4A.

    Which of the statements given above are correct?

    a1, 2 and 3b1 and 2, onlyc2 and 3, onlyd1 and 3, only
13. Prelims 2006Q85IT & Communication

    What is the Universal Product Code (UPC) adopted for?

    aFire safety code in buildingsbEarthquake-resistant buildings codecBar codedAgainst adulteration eatables
14. Prelims 2006Q86Physics

    What does the term ‘Dolby B’, or ‘Dolby C’ printed on tape recorders and other sound systems refer to?

    aFrequency modulated systembAmplitude Modulated systemcNoise reduction circuitdBoth DC and AC power can be used
15. Prelims 2006Q109Inventions & Scientists

    Who is the President of the Council of Scientific and Industrial Research?

    aPresident of IndiabVice-President of IndiacPrime Minister of IndiadUnion Minister of Science and Technology
16. Prelims 2006Q111Inventions & Scientists

    Where is the Central Water and Power Research Station located?

    aKhadakwaslabSilerucJamnagardSrisailam
17. Prelims 2006Q128Chemistry

    Which are the materials generally employed as solder in soldering operation in electronics?

    aIron and tinbLead and tincAluminum and leaddAluminum and iron
18. Prelims 2006Q140IT & Communication

    To which one of the following processes is the term CMYK related?

    aRailway signallingbNavigationcOffset printingdElectronic voting machine
19. Prelims 2006Q147Health & Diseases

    Consider the following statements:

    1.ELISA test is employed as the first and most basic test for an individual to detect cancer.

    2.Almost 50% of human beings have Rh+ blood while the remaining have Rh-blood.

    Which of the statements given above is/are correct?

    a1 onlyb2 onlycBoth 1 and 2dNeither 1 nor 2
20. Prelims 2006Q148Physics

    Which one of the following is printed on a commonly used fluorescent tube light?

    a220 Kb273 Kc6500 Kd9000 K