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Exam Year: 2011

  • ,

    A layer in the Earth’s atmosphere called the ionosphere facilitates radio communication. Why?
    1. The presence of ozone causes the reflection of radio waves to earth.
    2. Radio waves have a very long wavelength.

    (a)

    1 only

    (b)

    2 only

    (c)

    Both 1 and 2

    (d)

    Neither 1 nor 2

    Correct Answer:

    (d)

  • ,

    When the bark of a tree is removed in a circular fashion all around near its base, it gradually dries up and dies because?

    (a)

    Water from soil cannot rise to aerial parts.

    (b)

    Roots are starved of energy.

    (c)

    Tree is infected by soil microbes.

    (d)

    Roots do not receive oxygen for respiration.

    Correct Answer:

    (b)

  • ,

    What is a “Virtual Private Network”?

    (a)

    It is a private computer network of an organization where the remote users can transmit encrypted information through the server of the organization.

    (b)

    It is a computer network across a public internet that provides users access to their organization’s network while maintaining the security of the information transmitted.

    (c)

    It is a computer network in which users can access a shared pool of computing resources through a service provider.

    (d)

    None of the statements (a), (b) and (c) given above is the correct description of virtual private networks.

    Correct Answer:

    (b)

  • ,

    The function of heavy water in a nuclear reactor is to?

    (a)

    Slow down the speed of neutrons.

    (b)

    Increase the speed of neutrons.

    (c)

    Cooldown the reactor.

    (d)

    Stop the nuclear reaction.

    Correct Answer:

    (a)

  • ,

    A married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the couple is AB positive and O negative. The blood group of the three sons is A positive, B positive, and O positive. The blood group of the adopted son is?

    (a)

    O positive

    (b)

    A positive

    (c)

    B positive

    (d)

    Cannot be determined on the basis of the given data

    Correct Answer:

    (a)

  • ,

    A genetically engineered form of brinjal, known as the Bt-Brinjal, has been developed. The objective of this is

    (a)

    To make it pest-resistant

    (b)

    To improve its taste and nutritive qualities

    (c)

    To make it drought resistant

    (d)

    To make its shelf-life longer

    Correct Answer:

    (a)

  • ,

    Recently, “oilzapper’’ was in the news. What is it?

    (a)

    It is an eco-friendly technology for the remediation of oily sludge and oil spills.

    (b)

    It is the latest technology developed for undersea oil exploration.

    (c)

    It is a genetically engineered high biofuel-yielding maize variety.

    (d)

    It is the latest technology to control the accidentally caused flames from oil wells.

    Correct Answer:

    (a)

  • ,

    A new optical disc format known as the Blu-ray disc is becoming popular. In what way is it different from the traditional DVD?
    1. DVD supports standard definition video while Blu-ray disc supports high-definition video.
    2. Compared to a DVD, the Blu-ray disc format has several times more storage capacity.
    3. Thickness of Blu-ray discs is 2.4 mm while that of DVD is 1.2 mm.

    (a)

    1 only

    (b)

    1 and 2 only

    (c)

    2 and 3 only

    (d)

    1, 2 and 3

    Correct Answer:

    (b)

  • ,

    Aspartame is an artificial sweetener sold in the market. It consists of amino acids and provides calories like other amino acids. Yet, it is used as a low-calorie sweetening agent in food items. What is the basis of this use?

    (a)

    Aspartame is as sweet as table sugar, but unlike table sugar, it is not readily oxidized in the human body due to lack of requisite enzymes.

    (b)

    When aspartame is used in food processing, the sweet taste remains, but it becomes resistant to oxidation.

    (c)

    Aspartame is as sweet as sugar, but after ingestion into the body, it is converted into metabolites that yield no calories.

    (d)

    Aspartame is several times sweeter than table sugar, hence food items made with small quantities of aspartame yield fewer calories on oxidation.

    Correct Answer:

    (d)

  • ,

    With reference to the period of India freedom struggle, which of the following was/were recommended by the Nehru Report?
    1. Complete Independence for India.
    2. Joint electorates for reservation of seats for minorities.
    3. Provision of fundamental rights for the people of India in the Constitution.
    Select the correct answer using the codes given below :

    (a)

    1 only

    (b)

    2 and 3 only

    (c)

    1 and 3 only

    (d)

    1, 2 and 3

    Correct Answer:

    (b)