Foram encontradas 60 questões.
Com respeito à estrutura cristalina dos metais, a alternativa que apresenta, respectivamente, um metal com estrutura cristalina hexagonal compacta, cúbica de faces centradas e cúbica de corpo centrado é:
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De um modo geral, os mecanismos para aumento da resistência dos metais monofásicos estão baseados em um princípio, que é o da:
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De acordo com a norma CNEN-NN-3.01, "em relação às exposições causadas por uma determinada fonte associada a uma prática, a magnitude das doses individuais, o número de pessoas expostas e a probabilidade de ocorrência de exposições devem ser mantidas tão baixas quanto possa ser razoavelmente exequível, tendo em conta os fatores econômicos e sociais." O requisito básico de Proteção Radiológica descrito é denominado:
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A figura a seguir ilustra um elemento estrutural de seção circular com raio r de 0,12 m, submetido a um torque de magnitude T de 432 kN·m.
Considerando o módulo de elasticidade ao cisalhamento G de 80 GPa, a tensão de cisalhamento máxima e o ângulo de torção são, respectivamente:
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A figura apresenta um tubo de aço de comprimento L igual a 1,2 m, com raio interno r1. O raio externo r2 é 1,2 r1. O tubo é unido a um suporte fixo por solda, e a extremidade livre está submetida a um torque T.
De acordo com a figura apresentada, a tensão de cisalhamento máximo é igual a:
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O desenho técnico, representado na figura a seguir, indica o diâmetro de um eixo e sua tolerância.
Com base nesse desenho, pode-se dizer que:
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A figura a seguir, que representa uma das vistas em corte de uma peça mecânica, serve de base para responder à questão.
O tipo de hachura apresentada na figura refere-se a um material específico, que é o:
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A figura a seguir, que representa uma das vistas em corte de uma peça mecânica, serve de base para responder à questão.
O tipo de corte apresentado na figura é conhecido como:
Provas
Science, Technology & Innovation Policy in Brazil
In the field of Science, Technology & Innovation, the greatest challenge in Brazil has been in designing and implementing a long-term policy that enables scientific and technological development to reach the population in order to improve life quality.
This policy should have an effective impact on improving society's living conditions.
This is a process, which has been enhanced through time and has increasingly shown the great potential that public and private investment in Science, Technology & Innovation has for generating development and social integration. [...]
Electing Science, Technology & Innovation as a strategic choice for the country's development implies prioritizing investments in this sector, to recoup losses and swiftly advance in the production and dissemination of knowledge and innovation, particularly in relation to its incorporation in national production. This also means advocating on behalf of the importance of Science, Technology & Innovation as a factorthat integrates other government development policies. In this context, it is necessary for citizens to closely follow advancements and to be prepared to participate in decisions that are important for society.
When it comes to Science, Technology & Innovation management, Brazil relies on a structured system composed of a central coordinating body and development agencies in charge of defining and implementing development policies on science, technology, and innovation. The State and local levei Science, Technology & Innovation management systems follow the same model for development policies attuned to regional and local vocations.
Due to the country's dimensions, to difficulties encountered in its management structure, and, above ali, to implementing national policies capable of simultaneously addressing varied regional needs, the scientific and technological knowledge produced is still slow to produce significant changes in the social inequities found in some regions. Therefore, the problems faced by Brazil in the fields of Science, Technology & Innovation are complex and can hardly be solved in the short term.
Adapted from:
https:/Ien.unesco.org/fieldoffice/brasilia/expertise/science-technology-
innovation Access on February 11,2022.
In "Therefore, the problems faced by Brazil in the fields of Science, Technology & Innovation are complex and can hardly be solved in the short term", the highlighted expression introduces:
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Science, Technology & Innovation Policy in Brazil
In the field of Science, Technology & Innovation, the greatest challenge in Brazil has been in designing and implementing a long-term policy that enables scientific and technological development to reach the population in order to improve life quality.
This policy should have an effective impact on improving society's living conditions.
This is a process, which has been enhanced through time and has increasingly shown the great potential that public and private investment in Science, Technology & Innovation has for generating development and social integration. [...]
Electing Science, Technology & Innovation as a strategic choice for the country's development implies prioritizing investments in this sector, to recoup losses and swiftly advance in the production and dissemination of knowledge and innovation, particularly in relation to its incorporation in national production. This also means advocating on behalf of the importance of Science, Technology & Innovation as a factorthat integrates other government development policies. In this context, it is necessary for citizens to closely follow advancements and to be prepared to participate in decisions that are important for society.
When it comes to Science, Technology & Innovation management, Brazil relies on a structured system composed of a central coordinating body and development agencies in charge of defining and implementing development policies on science, technology, and innovation. The State and local levei Science, Technology & Innovation management systems follow the same model for development policies attuned to regional and local vocations.
Due to the country's dimensions, to difficulties encountered in its management structure, and, above ali, to implementing national policies capable of simultaneously addressing varied regional needs, the scientific and technological knowledge produced is still slow to produce significant changes in the social inequities found in some regions. Therefore, the problems faced by Brazil in the fields of Science, Technology & Innovation are complex and can hardly be solved in the short term.
Adapted from:
https:/Ien.unesco.org/fieldoffice/brasilia/expertise/science-technology-
innovation Access on February 11,2022.
Choose the alternative in which the words can properly substitute the highlighted terms in the sentence "Electing Science, Technology & Innovation as a strategic choice for the country's development implies prioritizing investments in this sector, to recoup losses and swiftly advance in the production and dissemination of knowledge and innovation ... "
Provas
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