Weirs constructed on permeable foundation are likely to fail due to ?->(Show Answer!)

1. Weirs constructed on permeable foundation are likely to fail due to

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MCQ->In this question, a passage is given followed by a statement. Read the passage carefully and judge the statement based on the given passage. When Shah Jahan eternalised his love for Mumtaz, he must have believed that the river would be flowing forever. There was no solid ground on which the foundation could be built. So they used a well foundation, an engineering practice using deep wells to lower the water table and filling them with rocks and mortar. Finally they were capped with wooden, boxlike structures on which the mausoleum was constructed. The Yamuna is an integral part of the Taj’s design and there was no anticipation that it would dry or become narrow. But the river has narrowed and it is polluted. The wooden foundations are likely to become brittle and might disintegrate because, as Venice, built on a wooden foundation, shows, longevity of wood increases when it is submerged in water. When the wood is not exposed to oxygen there are no microorganisms to promote decay. A dry Yamuna could promote disintegration of the wooden foundations, the corrosive effect of the polluted water adding to the decay. Statement: To retain the structural integrity of the Taj Mahal, the river Yamuna must be restored and revived. Choose the appropriate one from the following options A -The statement is definitely true. B -The statement is probably true. C -The statement is cannot be det ermined. D -The statement is definitely false.....

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MCQ-> Read the following passage carefully and answer the given questions. Certain words/phrases are given in bold to help you locate them while answering some of the questions. At first glance the patriarchy appears to be thriving. More than 90% of presidents and prime ministers are male, as are all nearly big corporate bosses. Men dominate finance, technology, films, sports, music and even standup comedy. In much of the world they still enjoy social and legal privileges simply because :hey have a Y chromosome. So it might seem odd to worry about the plight of men. Yet there is plenty of cause for concern. Men cluster at the bottom as well at the top. Poorly educated men in rich countries have had difficulty coping with the enormous changes in the labour market and the home over the past halfcentury. As technology and trade have devalued brawn, lesseducated men have struggled to find a role in the workplace. Women, on the other hand, are surging into expanding sectors such as health care and education, helped by their superior skills. As education has become more important, boys have also fallen behind girls in school (except at the very top). Men who lose jobs in manufacturing often never work again. And men without work find it hard to support a family. The result for lowskilled men, is a poisonous combination of no job, no family and no prospects. Some tend to focus on economics. Shrinking job opportunities for men, they say, are entrenching poverty and destroying families. In America pay for men with only a highschool certificate fell by 21% in real terms between 1979 and 2013, for women with similar qualifications it raised by 3%. Around a fifth of workingage American men with only a highschool have no job. But both economic and social changes are to blame, and the two causes reinforce each other. Moreover, these problems are likely to get worse. Technology will disrupt more industries, creating benefits for society but rendering workers who fail to update their skills redundant. The OECD, a thinktank, predicts that the absolute number of singleparent households will continue to rise in nearly all rich countries. Boys who grow up without fathers are more likely to have trouble forming lasting relationships, creating a cycle of male dysfunction. What can be done? Part of the solution lies in a change in cultural attitudes. Over the past generation, men have learned that they need to help with child care and have changed their behaviour. Women have learned that they can be surgeons and physicists not at the cost of motherhood. Policymakers also need to lend a hand, because foolish laws are making the problem worse. Governments need to recognise that boys' underachievement is a serious problem and set about fixing it. Some sensible policies that are good for everybody are particularly good for boys. Earlychildhood education provides boys with more structure and a better chance of developing verbal and social skills. Countries with successful vocational systems such as Germany have done a better job motivating nonacademic boys and guiding them into jobs, but policymakers need to reinvent vocational education for an age when trainers are more likely to get jobs in hospitals than factories. The growing equality of the genders is one of the biggest achievements of the postwar era people have greater opportunities than ever before to achieve their ambitions regardless of their gender. But some even have failed to cope with this new world. It is time to give them a hand.What do the statistics in the passage with regard to America indicate?
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