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Exam Year: 1995

  • A person with ‘AB’ blood group is sometimes called a universal recipient because of the

    (a)

    lack of antigen in his blood

    (b)

    lack of antibodies in his blood

    (c)

    lack of both antigens and antibodies in his blood

    (d)

    presence of antibodies in his blood

    Correct Answer:

    (b)

  • Which one of the following sets is correctly matched ?

    (a)

    Diphtheria, Pneumonia and Leprosy : Hereditary

    (b)

    AIDS, Syphilis and Gonorrhoea : Bacterial

    (c)

    Colour blindness, Hemophilia and Sickle cell anaemia : Sex linked

    (d)

    Polio, Japanese B encephalitis and plague : Viral

    Correct Answer:

    (c)

  • Zero was invented by

    (a)

    Aryabhata

    (b)

    Varahamihira

    (c)

    Bhaskara I

    (d)

    an unknown Indian

    Correct Answer:

    (d)

  • Which one of the following fuels causes minimum environmental pollution ?

    (a)

    Diesel

    (b)

    Coal

    (c)

    Hydrogen

    (d)

    Kerosene

    Correct Answer:

    (c)

  • The difference between a nuclear reactor and an atomic bomb is that

    (a)

    no chain reaction takes place in nuclear reactor while in the atomic bomb there is a chain reaction

    (b)

    the chain reaction in nuclear reactor is controlled

    (c)

    the chain reaction in nuclear reactor is not controlled

    (d)

    no chain reaction takes place in atomic bomb while it takes place in nuclear reactor

    Correct Answer:

    (b)

  • An air bubble in water will act like a

    (a)

    convex mirror

    (b)

    convex lens

    (c)

    concave mirror

    (d)

    concave lens

    Correct Answer:

    (d)

  • The variations in temperatures from 0°C to 100°C with respect to time of two liquids P, Q are shown in the graph given below. Which one of the following statements is correct ?

    (a)

    During heating, liquid P remained hotter than liquid Q throughout

    (b)

    At no point of time during heating did the two liquids have the same temperature

    (c)

    P attained the temperature of 100°C faster than Q

    (d)

    Q attained the temperature of 100°C faster than P

    Correct Answer:

  • Cryogenic engines find applications in

    (a)

    sub-marine propulsion

    (b)

    frost-free refrigerators

    (c)

    rocket technology

    (d)

    researches in superconductivity

    Correct Answer:

    (c)

  • Which one of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torchlights, electric shavers, etc?

    (a)

    Nickel and cadmium

    (b)

    Zinc and carbon

    (c)

    Lead peroxide and lead

    (d)

    Iron and cadmium

    Correct Answer:

    (a)

  • Optical fibre works on the principle of

    (a)

    total internal reflection

    (b)

    refraction

    (c)

    scattering

    (d)

    interference

    Correct Answer:

    (a)