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Conversor A/C.

",{"_20":172,"_26":32,"_28":179},"

Conversor D/A.

",{"_20":181,"_26":35,"_28":182},"b0a43708-2eaa-431e-9f5a-5e670c310b88","

Conversor DC/AC.

",{"_20":184,"_26":39,"_28":185},"621496f0-8bcd-4170-ac79-f029b61cf7c4","

Conversor AC/DC.

",{"_20":187,"_26":43,"_28":188},"82beb153-62b5-4492-a5b4-4b250e984761","

Nenhuma das respostas acima.

","

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

",[191],{"_20":123,"_58":124,"_97":125,"_99":100,"_101":113,"_70":126,"_72":126,"_66":192,"_74":125},{"_104":128,"_106":107,"_108":119},{"_17":194,"_19":18,"_20":195,"_22":196,"_45":18,"_46":211,"_92":212},"3ad9843b-1d8c-4105-ba2e-c4b2036aa739","9250916a-6d75-45e4-ba22-e241577b3c6d",[197,200,203,205,208],{"_20":198,"_26":27,"_28":199},"cd9bf874-c68d-4a83-a542-6e1017ab5aa3","Controlador e caminho de realimentação.",{"_20":201,"_26":32,"_28":202},"9876ad07-7a59-4783-9a6f-a8dfd575ebda","Variável controlada e variável manipulada.",{"_20":194,"_26":35,"_28":204},"Sensores e atuadores.",{"_20":206,"_26":39,"_28":207},"d437cd92-e74c-4e75-8ead-58c7ad88f9b4","Saídas e entradas.",{"_20":209,"_26":43,"_28":210},"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:

",[213],{"_20":123,"_58":124,"_97":125,"_99":100,"_101":113,"_70":126,"_72":126,"_66":214,"_74":125},{"_104":128,"_106":107,"_108":119},{"_17":18,"_19":18,"_20":216,"_22":217,"_45":18,"_46":228,"_92":229},"b72f32d4-8e5c-4b78-8ca1-fffb9133beaf",[218,220,222,224,226],{"_20":219,"_26":27,"_28":27},"0d271c5e-75f4-4f80-9070-ec6e61f920b4",{"_20":221,"_26":32,"_28":32},"22d7bbd3-763e-4f0a-b27b-99a913a98b51",{"_20":223,"_26":35,"_28":35},"b0005922-c0f4-41ed-b76f-782d257efeca",{"_20":225,"_26":39,"_28":39},"09ae6274-a5a4-4dd6-b758-fd3d202facb4",{"_20":227,"_26":43,"_28":43},"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?

",[230],{"_20":123,"_58":124,"_97":125,"_99":100,"_101":113,"_70":126,"_72":126,"_66":231,"_74":125},{"_104":128,"_106":107,"_108":119},{"_17":233,"_19":18,"_20":234,"_22":235,"_45":18,"_46":250,"_92":251},"721f83f6-6fbb-4d15-b57e-af26193ba98f","c645c529-f67f-47b0-8f80-f9d965b2264b",[236,239,242,244,247],{"_20":237,"_26":27,"_28":238},"3b2273ed-dc7c-44ca-82cb-ebf48f8843d3","Regenerativo.",{"_20":240,"_26":32,"_28":241},"aef385fd-950e-48e1-bdb9-42ba22b75c3f","Manual",{"_20":233,"_26":35,"_28":243},"Malha fechada.",{"_20":245,"_26":39,"_28":246},"8a9e08be-9bfb-4d56-96e6-c06f1509b636","Malha aberta.",{"_20":248,"_26":43,"_28":249},"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:

",[252],{"_20":123,"_58":124,"_97":125,"_99":100,"_101":113,"_70":126,"_72":126,"_66":253,"_74":125},{"_104":128,"_106":107,"_108":119},{"_17":255,"_19":18,"_20":256,"_22":257,"_45":18,"_46":272,"_92":273},"92b42c3f-99b6-4855-b672-0c00432d3b62","f8cc0ab1-5196-413f-9ba9-71ab7dc52ad1",[258,261,264,267,270],{"_20":259,"_26":27,"_28":260},"4ba98b5c-50e9-4ca2-bce8-2605d345ff50","

Faixa de um instrumento.

",{"_20":262,"_26":32,"_28":263},"3bebaab0-b40e-4042-84d0-aeefa3d57eee","

Precisão de um instrumento.

",{"_20":265,"_26":35,"_28":266},"006de846-35e0-45f2-af11-21cc2f21f23e","

Repetibilidade.

",{"_20":268,"_26":39,"_28":269},"89c2d67b-c344-4c15-bff9-c5282752e5eb","

Histerese.

",{"_20":255,"_26":43,"_28":271},"

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