Questão 2031010

• Banca: Exército
• Órgão: IME
• Ano: 2015
• Provas: Exército - 2015 - IME - Aluno - Português e Inglês
• Disciplina: Inglês
• Assuntos: Interpretação de texto | Reading comprehension

                                                   Text 2

                                MATERIALS OF IMPORTANCE 

                              Carbonated Beverages Containers

      One common item that presents some interesting material property requirements is the container for carbonated beverages. The material used for this application must satisfy the following constraints: provide a barrier to the passage of carbon dioxide, which is under pressure in the container; be nontoxic, unreactive with the beverage, and, preferably be recyclable; be relatively strong, and capable of surviving a drop from a height of several feet when containing the beverage; be inexpensive and the cost to fabricate the final shape should be relatively low; if optically transparent, retain its optical clarity; and capable of being produced having different colors and/or able to be adorned with decorative labels.

      All three of the basic material types—metal (aluminum), ceramic (glass), and polymer (polyester plastic)—are used for carbonated beverage containers. All of these materials are nontoxic and unreactive with beverages. In addition, each material has its pros and cons. For example, the aluminum alloy is relatively strong (but easily dented), is a very good barrier to the diffusion of carbon dioxide, is easily recycled, beverages are cooled rapidly, and labels may be painted onto its surface. On the other hand, the cans are optically opaque, and relatively expensive to produce. Glass is impervious to the passage of carbon dioxide, is a relatively inexpensive material, may be recycled, but it cracks and fractures easily, and glass bottles are relatively heavy. Whereas the plastic is relatively strong, may be made optically transparent, is inexpensive and lightweight, and is recyclable, it is not as impervious to the passage of carbon dioxide as the aluminum and glass. For example, you may have noticed that beverages in aluminum and glass containers retain their carbonization (i.e., “fizz”) for several years, whereas those in two-liter plastic bottles “go flat” within a few months.

Disponível em https://onedrive.live.com/view.aspx?resid=FA116F188700E8B6!608&ithint=file%2cpdf&app =WordPdf&authkey=!AcrrQAFlJ83JGjU Acesso em 15 Abr 2015.

ESCOLHA A ALTERNATIVA CORRETA DE ACORDO COM O TEXTO 2 A SEGUIR.

• A. Despite all the pros the aluminum alloy containers present, they're not optically transparent.
• B. Seldom do we see depressions on aluminum alloy beverages containers.
• C. Because carbon dioxide can be diffused, beverages in aluminum alloy containers cool easily.
• D. No matter how dark an aluminum alloy container is, its final price is cheaper when compared to other types of container materials.
• E. Aluminum alloy containers could be easily recycled for they are cooled rapidly.

Gabarito: A

Comentários

• A) Apesar de todas as vantagens que os recipientes de liga de alumínio apresentam, eles não são oticamente transparentes.
  B) Raramente vemos depressões em recipientes de bebidas de liga de alumínio.
  C) Pelo fato  do dióxido de carbono poder ser difundido, bebidas em recipientes de liga de alumínio refrigeram facilmente.
  D) Não importa quão escuro um recipiente de liga de alumínio seja, seu preço final é mais barato quando comparado com outros tipos de materiais de recipiente.
  E) Os recipientes de liga de alumínio podem ser facilmente reciclados porque são resfriados rapidamente.
  On the other hand, the cans are optically opaque, and relatively expensive to produce. 
  
  Tradução: Por outro lado, as latas são oticamente opacas, e relativamente caras de produzir. 
  Conforme trecho do texto, os recipientes de alumínio são oticamente opacos. Alternativa A está correta.