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Porters who carry heavy luggage always h...

Porters who carry heavy luggage always have a long piece of cloth with them. Before carrying the load on their heads they fold the cloth in the shape of a mound disc and place it on their heads. By doing this they

A

Increase the area of contact of the load of luggage with their head

B

Decrease the force exerted by the load of luggage on the head

C

Decrease the thrust of the luggage

D

Save their heads from possible injury

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The correct Answer is:
A
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Knowledge Check

  • Porters who carry heavy luggage always have a long piece of cloth wiith them. Before carrying the load o their heads they fold the cloth in the shape of a round disc and place in on their heads. By doing this they

    A
    decrease the thrust of the luggage
    B
    save their heads from possible injury
    C
    increase the area of contact of the load of luggage with their head
    D
    decrease the force exerted by the load of luggage on the head

  • Porters who carry heavy luggage always have a long piece of cloth with them . Before carrying the load on their heads they fold thhe cloth in the shape of a round disc and place it on their heads . By doing this they it on their heads . By doing this they

    A
    decrease the thrust of the luggage
    B
    save their heads from possible injury
    C
    increase the area of contact of the load of luggage with their head
    D
    decrease the force exerted fy the load of luggage on the road .

  • Andaman and Nicobar Islands consist of mainly two groups of islands, with distinctive features of the original residents - Negroid and Mongolese. It is strange to see how these two different groups migrated to these islands so far from the mainland - from India and Myanmar. The aboriginals found in these islands are the Jarawas, Sentinelese, Onges, Shompenites, mainly found in Andaman and the Nicobarese in Nicobar. Of these the Nicobarese in general, and some of the Onges, have accepted the socalled modern civilization and learned the use of modern tools and facilities. They can be seen frequently in the Port Blair market. The aboriginals are looked after by the Anthropological Department of the Government, who make regular visits to their islands and supply them with food and other necessities. These aboriginals still do not know how to use a matchbox and prepare fire by rubbing two pieces of wood: they also do not know the use of cloth. If the people from the Anthropological Department offer them clothes, they use them only as turbans and not to wrap their bodies. Find out a word which is the antonym for usual.

    A
    strange
    B
    migrated
    C
    frequently
    D
    regular

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