Questões de Língua Inglesa do ano 2007

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Listagem de Questões de Língua Inglesa do ano 2007

The best translation of "Lateral pressure varies linearly with depth and the resultant pressure is located onethird of the height (H) above the base of the wall." Is

"Each of these walls must be designed to resist the external forces applied to the wall from earth pressure, surcharge load, water, earthquake etc."

According to the sentence above, one can deduce that

1. designing any retaining wall requires knowledge of lateral earth pressure. 
2. retaining wall design is an iterative method. 
3. it is common for walls to be designed with adequate drainage to prevent water from accumulating behind the wall and producing large additional forces.

Which of the statements is correct?

The word "backfill" (first paragraph) means

About retaining walls , it is not correct to say that

Check the correct pair of opposites

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