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07 - Por norma, na instalação de um circuito de tomada de uma banheira é recomendado o uso de um disjuntor com

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Conversor A/C.

",{"_21":173,"_27":33,"_29":180},"

Conversor D/A.

",{"_21":182,"_27":37,"_29":183},"b0a43708-2eaa-431e-9f5a-5e670c310b88","

Conversor DC/AC.

",{"_21":185,"_27":40,"_29":186},"621496f0-8bcd-4170-ac79-f029b61cf7c4","

Conversor AC/DC.

",{"_21":188,"_27":44,"_29":189},"82beb153-62b5-4492-a5b4-4b250e984761","

Nenhuma das respostas acima.

","

Para a conversão de sinais digitais para analógicos, necessitamos de circuitos ou chips denominados:

",[192],{"_21":124,"_59":125,"_98":126,"_100":101,"_102":114,"_71":127,"_73":127,"_67":193,"_75":126},{"_105":129,"_107":108,"_109":120},{"_17":195,"_19":20,"_21":196,"_23":197,"_46":20,"_47":212,"_93":213},"3ad9843b-1d8c-4105-ba2e-c4b2036aa739","9250916a-6d75-45e4-ba22-e241577b3c6d",[198,201,204,206,209],{"_21":199,"_27":28,"_29":200},"cd9bf874-c68d-4a83-a542-6e1017ab5aa3","Controlador e caminho de realimentação.",{"_21":202,"_27":33,"_29":203},"9876ad07-7a59-4783-9a6f-a8dfd575ebda","Variável controlada e variável manipulada.",{"_21":195,"_27":37,"_29":205},"Sensores e atuadores.",{"_21":207,"_27":40,"_29":208},"d437cd92-e74c-4e75-8ead-58c7ad88f9b4","Saídas e entradas.",{"_21":210,"_27":44,"_29":211},"92227e4f-9bed-48a2-8a24-4e78e7032b81","Ponto de ajuste e atuadores.","

No diagrama de blocos de uma malha de controle, o elemento de medição e o elemento de controle são:

",[214],{"_21":124,"_59":125,"_98":126,"_100":101,"_102":114,"_71":127,"_73":127,"_67":215,"_75":126},{"_105":129,"_107":108,"_109":120},{"_17":20,"_19":20,"_21":217,"_23":218,"_46":20,"_47":229,"_93":230},"b72f32d4-8e5c-4b78-8ca1-fffb9133beaf",[219,221,223,225,227],{"_21":220,"_27":28,"_29":28},"0d271c5e-75f4-4f80-9070-ec6e61f920b4",{"_21":222,"_27":33,"_29":33},"22d7bbd3-763e-4f0a-b27b-99a913a98b51",{"_21":224,"_27":37,"_29":37},"b0005922-c0f4-41ed-b76f-782d257efeca",{"_21":226,"_27":40,"_29":40},"09ae6274-a5a4-4dd6-b758-fd3d202facb4",{"_21":228,"_27":44,"_29":44},"79575e01-cc80-4c53-8122-bc3a7a15ac9a","

Qual é a resposta correta para a questão 50 do exame realizado em 02/05/2010 para o cargo de ENGENHEIRO(A) DE EQUIPAMENTOS PLENO ÊNFASE EM ELETRICIDADE, de acordo com a seguinte chave de respostas?

",[231],{"_21":124,"_59":125,"_98":126,"_100":101,"_102":114,"_71":127,"_73":127,"_67":232,"_75":126},{"_105":129,"_107":108,"_109":120},{"_17":234,"_19":20,"_21":235,"_23":236,"_46":20,"_47":251,"_93":252},"721f83f6-6fbb-4d15-b57e-af26193ba98f","c645c529-f67f-47b0-8f80-f9d965b2264b",[237,240,243,245,248],{"_21":238,"_27":28,"_29":239},"3b2273ed-dc7c-44ca-82cb-ebf48f8843d3","Regenerativo.",{"_21":241,"_27":33,"_29":242},"aef385fd-950e-48e1-bdb9-42ba22b75c3f","Manual",{"_21":234,"_27":37,"_29":244},"Malha fechada.",{"_21":246,"_27":40,"_29":247},"8a9e08be-9bfb-4d56-96e6-c06f1509b636","Malha aberta.",{"_21":249,"_27":44,"_29":250},"31369380-e5e4-4a49-aca4-1a01acfa1c3d","On/Off.","

Uma moderna caldeira industrial totalmente automática, com controle de nível, pressão, vazão de combustível e vapor, tem o tipo de controle:

",[253],{"_21":124,"_59":125,"_98":126,"_100":101,"_102":114,"_71":127,"_73":127,"_67":254,"_75":126},{"_105":129,"_107":108,"_109":120},{"_17":256,"_19":20,"_21":257,"_23":258,"_46":20,"_47":273,"_93":274},"92b42c3f-99b6-4855-b672-0c00432d3b62","f8cc0ab1-5196-413f-9ba9-71ab7dc52ad1",[259,262,265,268,271],{"_21":260,"_27":28,"_29":261},"4ba98b5c-50e9-4ca2-bce8-2605d345ff50","

Faixa de um instrumento.

",{"_21":263,"_27":33,"_29":264},"3bebaab0-b40e-4042-84d0-aeefa3d57eee","

Precisão de um instrumento.

",{"_21":266,"_27":37,"_29":267},"006de846-35e0-45f2-af11-21cc2f21f23e","

Repetibilidade.

",{"_21":269,"_27":40,"_29":270},"89c2d67b-c344-4c15-bff9-c5282752e5eb","

Histerese.

",{"_21":256,"_27":44,"_29":272},"

Resolução.

","

A menor indicação da variável numérica que um instrumento pode indicar, ou seja, a menor mudança de uma variável para que o instrumento possa responder é:

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Comentários