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Exam Year: 1998

  • Which one of the following types of micro-organisms is most widely used in industries ?

    (a)

    Bacteria

    (b)

    Bacteria and fungi

    (c)

    Bacteria and algae

    (d)

    Bacteria, micro-algae and fungi

    Correct Answer:

    (d)

  • A ball is dropped from the top of a high building with a constant acceleration of 9.8 m/s2. What will be its velocity after 3 seconds ?

    (a)

    9.8 m/s

    (b)

    19.6 m/s

    (c)

    29.4 m/s

    (d)

    39.2 m/s

    Correct Answer:

  • Consider the following statements about acetylene : I. It is used in welding industry. II. It is raw material for preparing plastics. III. It is easily obtained by mixing silicon carbide and water. Of these statements :

    (a)

    I and II are correct

    (b)

    I and III are correct

    (c)

    II and III are correct

    (d)

    I, II and III are correct

    Correct Answer:

    (a)

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

    (a)

    I-B, II-C, III-E, IV-A

    (b)

    I-C, II-E, III-A, IV-B

    (c)

    I-D, II-A, III-B, IV-C

    (d)

    I-D, II-C, III-B, IV-A

    Correct Answer:

  • Haemophilia is a genetic disorder which leads to

    (a)

    decrease in haemoglobin level

    (b)

    rheumatic heart disease

    (c)

    decrease in WBC

    (d)

    non-clotting of blood

    Correct Answer:

    (d)

  • Consumption of fish is considered to be healthy when compared to flesh of other animals because fish contains

    (a)

    polyunsaturated fatty acids

    (b)

    saturated fatty acids

    (c)

    essential vitamins

    (d)

    more carbohydrates and proteins

    Correct Answer:

    (a)

  • The correct sequence of different layers of the atmosphere from the surface of the Earth upwards is

    (a)

    Troposphere, Stratosphere, Ionosphere, Mesosphere

    (b)

    Stratosphere, Troposphere, Ionosphere, Mesosphere

    (c)

    Troposphere, Stratosphere, Mesosphere, Ionosphere

    (d)

    Stratosphere, Troposphere, Mesosphere, Ionosphere

    Correct Answer:

    (c)

  • A fuse is used in main electric supply as a safety device. Which one of the following statements about the fuse is correct?

    (a)

    It is connected in parallel with the main switch

    (b)

    It is made mainly from silver alloys

    (c)

    It must have a low melting point

    (d)

    It must have a very high resistance

    Correct Answer:

  • Consider the following statements regarding asteroids : I. Asteroids are rocky debris of varying sizes orbiting the Sun. II. Most of the asteroids are small but some have diameter as large as 1000 km. III. The orbit of asteroids lies between the orbits of Jupiter and Saturn. Of these statements :

    (a)

    I, II and III are correct

    (b)

    II and III are correct

    (c)

    I and II are correct

    (d)

    I and III are correct

    Correct Answer:

  • Which one of the following metals does not form amalgams ?

    (a)

    Zinc

    (b)

    Copper

    (c)

    Magnesium

    (d)

    Iron

    Correct Answer:

    (d)