Science & Technology PYQs

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1. Prelims 1997Q110Physics

   The working principle of a washing machine is

   acentrifugationbdialysiscreverse osmosisddiffusion
2. Prelims 1997Q111Chemistry

   The characteristic odour of garlic is due to

   aa chloro compoundba sulphur compoundca fluorine compounddacetic acid
3. Prelims 1997Q112Chemistry

   Which one of the following is an active component of oil of clove?

   aMentholbEugenolcMethanoldBenzaldehyde
4. Prelims 1997Q113Chemistry

   The most reactive among the halogens is

   afluorinebchlorinecbrominediodine
5. Prelims 1997Q114Physics

   Which one of the following is paramagnetic in nature?

   aIronbHydrogencOxygendNitrogen
6. Prelims 1997Q115Chemistry

   Which one of the following has the highest fuel value?

   aHydrogenbCharcoalcNatural GasdGasoline
7. Prelims 1997Q116Chemistry

   Which one of the following is used as an anti-freeze for the automobile engines?

   aPropyl alcoholbEthanolcMethanoldEthylene glycol
8. Prelims 1997Q117Biology & Human Body

   The pituitary gland by virtue of its tropic hormones controls the secretory activity of other endocrine glands.

   Which one of the following endocrine glands can function independent of the pituitary gland?

   aThyroidbGonadscAdrenalsdParathyroid
9. Prelims 1997Q118Biology & Human Body

   Oxygen transportation in a human body takes place through

   I.Blood

   II.Lungs

   III.Tissue The correct sequence of transportation is

   aI, II, IIIbIII, I, IIcII, I, IIIdI, III, II
10. Prelims 1997Q119Biology & Human Body

    Corpus luteum is a mass of cells found in

    abrainbovarycpancreasdspleen
11. Prelims 1997Q121Biology & Human BodyAnswer disputed

    Alpha-keratin is a protein present in

    abloodbskincwooldeggs
12. Prelims 1997Q123Health & Diseases

    What is the average fat content of buffalo milk?

    a7.2%b4.5%c9.0%d10.0%
13. Prelims 1997Q124Health & Diseases

    The major component of honey is

    aglucosebsucrosecmaltosedfructose
14. Prelims 1997Q125Biology & Human Body

    Arteries supplying blood to the heart are called

    acarotid arteriesbhepatic arteriesccoronary arteriesdpulmonary arteries
15. Prelims 1997Q126Health & Diseases

    Recommended daily intake of proteins for a moderately active woman is

    a30 gb37 gc40 gd46 g
16. Prelims 1997Q127Biotechnology

    The sequencing of the entire genome (the totality of all genes) of an organism was completed in 1996. The organism was

    aalbino mousebyeastchuman beingdPlasmodium vivax
17. Prelims 1997Q128Health & Diseases

    Match List I with List II and select the correct answer by using the codes given below the lists:

    List I

    I.Malaria

    II.Filaria

    III.Encephalitis

    IV.Leukaemia

    List II

    A) Bone marrow

    B) Brain

    C) Muscle

    D) Lymph node

    E) Blood cells

    aI-E, II-C, III-B, IV-AbI-E, II-D, III-B, IV-AcI-D, II-C, III-E, IV-AdI-E, II-D, III-A, IV-B
18. Prelims 1997Q129Biology & Human Body

    Antigen is a substance which

    alowers body temperaturebdestroys harmful bacteriactriggers the immune systemdis used as an antidote to poison
19. Prelims 1997Q134Physics

    A smooth inclined plane is inclined at an angle θ with the horizontal as shown in the figure. A body starts from rest and slides down the inclined surface. The time taken by the body to reach the bottom is

    a√(2h / g)b√(2l / g)c√(2l / (g sin θ))d(1/ sin θ) √(h / 2g)
20. Prelims 1997Q144Physics

    A girl is swinging on a swing in sitting position. When the same girl stands up, the period of swing will

    abe shorterbbe longercdepend on the height of the girldnot change