Foram encontradas 80 questões.
Os métodos dos estados limites podem ser classificados em estados limites últimos e de utilização.
Qual das alternativas abaixo define o estado limite de utilização?
Provas
No modelo de viga de Euler-Bernoulli, simplificações foram introduzidas, mas seu uso é permitido em muitas áreas de engenharia.
Sobre este modelo, assinale a alternativa correta.
Provas
A imagem representa uma treliça espacial. Os pontos A, B, C e D são apoios fixos. Os pontos E, F, G e H são articulados.
Quais barras são necessárias para tornar essa estrutura estável?
Provas
Considere um pilar engastado no solo submetido à força Hr e com a distribuição de esforços ilustrada na figura abaixo.
Com base nessas informações, assinale a alternativa correta.
Provas
No dia a dia do projeto é comum igualar as definições de Revit e de BIM. Contudo, ainda que atuem em um ambiente comum, apresentam uma distinção intrínseca.
Sobre essa distinção, assinale a alternativa correta.
Provas
- LicitaçõesLei 14.133/2021Das Licitações (arts. 11 ao 87)Contratação Direta, Dispensa e Inexigibilidade (art. 72 ao 75)
No caso de obras e serviços de engenharia, serão consideradas inexequíveis, nos termos da legislação, em termos de compensação financeira, as propostas cujos valores forem inferiores a qual percentual exato do valor orçado pela Administração?
Provas
- LicitaçõesLei 14.133/2021Das Licitações (arts. 11 ao 87)Contratação Direta, Dispensa e Inexigibilidade (art. 72 ao 75)
A contratação direta é instituto previsto na Lei nº 14.133/2021 e pode ser realizada na hipótese de dispensa de licitação. Assinale a alternativa que autoriza a dispensa.
Provas
O termo de referência é documento central em um processo licitatório. Nos termos da Lei nº 14.133/2021, indique qual a alternativa que melhor se relaciona ao seu conceito legal e a seus elementos descritivos.
Provas
Quantum breakthrough could revolutionise computing
Computer scientists have been trying to make an effective quantum computer for more than 20 years. Firms such as Google, IBM and Microsoft have developed simple machines.
But, according to Prof. Winfried Hensinger, who led the research at Sussex University, the new development paves the way for systems that can solve complex real world problems that the best computers we have today are incapable of.
"Right now we have quantum computers with very simple microchips," he said. "What we have achieved here is the ability to realise extremely powerful quantum computers capable of solving some of the most important problems for industries and society."
Currently, computers solve problems in a simple linear way, one calculation at a time. In the quantum realm, particles can be in two places at the same time and researchers want to harness this property to develop computers that can do multiple calculations all at the same time.
Quantum particles can also be millions of miles apart and be strangely connected, mirroring each other's actions instantaneously. Again, that could also be used to develop much more powerful computers.
One stumbling block has been the need to transfer quantum information between chips quickly and reliably: the information degrades, and errors are introduced.
But Prof. Hensinger's team has made a breakthrough, published in the journal Nature Communications, which may have overcome that obstacle.
The team developed a system able to transport information from one chip to another with a reliability of 99.999993% at record speeds. That, say the researchers, shows that in principle chips could be slotted together to make a more powerful quantum computer.
GHOSH, Pallab. Quantum breakthrough could revolutionise computing.
BBC News (online). 08 Fev. 2023 (adaptado).
Segundo o texto, a equipe do Prof. Hensinger desenvolveu um grande avanço nas pesquisas, pois possibilitou
Provas
Quantum breakthrough could revolutionise computing
Computer scientists have been trying to make an effective quantum computer for more than 20 years. Firms such as Google, IBM and Microsoft have developed simple machines.
But, according to Prof. Winfried Hensinger, who led the research at Sussex University, the new development paves the way for systems that can solve complex real world problems that the best computers we have today are incapable of.
"Right now we have quantum computers with very simple microchips," he said. "What we have achieved here is the ability to realise extremely powerful quantum computers capable of solving some of the most important problems for industries and society."
Currently, computers solve problems in a simple linear way, one calculation at a time. In the quantum realm, particles can be in two places at the same time and researchers want to harness this property to develop computers that can do multiple calculations all at the same time.
Quantum particles can also be millions of miles apart and be strangely connected, mirroring each other's actions instantaneously. Again, that could also be used to develop much more powerful computers.
One stumbling block has been the need to transfer quantum information between chips quickly and reliably: the information degrades, and errors are introduced.
But Prof. Hensinger's team has made a breakthrough, published in the journal Nature Communications, which may have overcome that obstacle.
The team developed a system able to transport information from one chip to another with a reliability of 99.999993% at record speeds. That, say the researchers, shows that in principle chips could be slotted together to make a more powerful quantum computer.
GHOSH, Pallab. Quantum breakthrough could revolutionise computing.
BBC News (online). 08 Fev. 2023 (adaptado).
De acordo com o texto, a vantagem dos computadores quânticos é
Provas
Caderno Container