[{"_1":2,"_288":-5,"_289":-5},"loaderData",{"_3":4,"_31":32},"root",{"_5":6,"_28":29,"_30":-5},"registerModalConfig",{"_7":8,"_15":16},"blockedConfig",{"_9":10,"_15":16,"_17":18,"_21":22,"_24":25},"answerQuestion",{"_11":12,"_13":14},"subtitle","Crie sua conta gratuita e utilize todos os nossos recursos de questões disponiveis","title","Para responder, cadastre-se gratuitamente","customBlockedUI",true,"defaultRegister",{"_11":19,"_13":20},"Crie sua conta gratuita e utilize todos os nossos recursos disponíveis","Cadastre-se gratuitamente","imageSearch",{"_11":19,"_13":23},"Para buscar por imagem, cadastre-se gratuitamente","questionAnswer",{"_11":26,"_13":27},"Crie sua conta gratuita e utilize todos os nossos recursos disponíveis para responder","Para ver a resposta, cadastre-se gratuitamente","url","https://prouniversitario.com/exercicios/faced953-fe05-4a96-8215-84d7ed73b47c","user","pages/questions/show/index",{"_33":34,"_35":36,"_37":36,"_38":39,"_107":108,"_219":220,"_51":261,"_270":271,"_284":285,"_286":287},"comments",[],"hasVideoHash",false,"isAiGenerated","question",{"_40":41,"_42":41,"_43":44,"_45":46,"_77":78,"_101":41,"_102":103,"_104":105,"_106":16},"correctOptionId","","difficulty","id","faced953-fe05-4a96-8215-84d7ed73b47c","metadata",{"_47":48,"_73":74,"_75":76},"pd",{"_49":50,"_51":52,"_53":54,"_61":62,"_63":64,"_65":16,"_66":67,"_68":16,"_69":70,"_71":72},"area","Outros","tags",[],"subjects",[55],{"_43":56,"_57":58,"_59":60},147389057,"name","Eletrônicos","alias","eletronicos","materialId","136555507","answerCount",1,"isIndexable","mainSubject",{"_43":56,"_57":58,"_59":60},"isIndexableSEO","materialFormat","Text","studentDegreeLevel","Graduate","source","PD","externalId","136557220","options",[79,85,89,93,97],{"_43":80,"_81":82,"_83":84},"e595032c-dfa6-4888-87b1-d7be23bb4eeb","label","A","text","V_o < V_s.",{"_43":86,"_81":87,"_83":88},"b64fac28-90d0-4e36-8759-7b9d8971317e","B","V_o > V_s.",{"_43":90,"_81":91,"_83":92},"b2bc8201-98a8-4a87-8e90-2d7b2c75ba24","C","V_o = V_s.",{"_43":94,"_81":95,"_83":96},"8d6716fd-6b03-4a1a-95f6-fe597d34feca","D","V_o = 2 \times V_s.",{"_43":98,"_81":99,"_83":100},"dbd9b84c-f3cd-41d5-8ef7-db18394e883c","E","V_o = \frac{V_s}{2}.","solution_explanation","statement","

Um chopper elevador/abaixador pode funcionar de duas formas: como elevador de tensão e como abaixador de tensão. Se o ciclo de trabalho (duty cicle) for menor que 0,5 qual a relação de V_s com V_o? Assinale a alternativa correta.

","status","pending_classification","hasRelatedVideo","relatedVideos",[109],{"_110":111,"_129":130,"_51":145,"_188":189,"_206":207},"content",{"_43":112,"_57":113,"_114":-5,"_115":116,"_117":118,"_119":-5,"_45":120,"_123":124,"_125":124,"_126":-5,"_127":128},"468e3e62-35e0-47be-a15f-68dd43bb32bb","Óptica Geométrica - Parte 1","description","content_type_id","1051eee7-c62e-4b2c-9900-77a29fcec080","resource_id","fa6aaf42-4cc4-4d76-8915-7a67081f7e9a","user_id",{"_121":122},"external_id","4963","created_at","2025-08-20T12:27:41.608438+00:00","updated_at","content_group_id","slug","optica-geometrica-parte-1","prometheusData",{"_131":132,"_138":139,"_140":141,"_142":143,"_28":144},"provider",{"_43":133,"_134":135,"_136":137},"06f120be-2194-4548-8336-7ba44ffbae14","key","grupo_q_proteus","kind","proteus","reference","d80487a0-0f98-42c8-99bb-551165ba3068","state","completed","thumbnail_url","https://proteus.grupoq.io/videos/d80487a0-0f98-42c8-99bb-551165ba3068/thumbnailsthumb.0000000.jpg","https://proteus.grupoq.io/videos/d80487a0-0f98-42c8-99bb-551165ba3068/levels.m3u8",[146],{"_43":147,"_57":148,"_59":149,"_150":151,"_152":-5,"_123":153,"_125":153,"_45":154,"_127":149,"_161":162},"9772e958-72c6-4499-ad47-877cf94d670d","Exatas","exatas","tag_group_id","c1ce2cf2-b217-4cc7-8182-81c56bd3522d","parent_id","2025-04-29T01:56:45.284172+00:00",{"_155":156,"_157":158,"_159":160},"childrenCount",18,"content_count",0,"question_count",135489,"children",[163],{"_43":164,"_57":165,"_59":166,"_150":151,"_152":147,"_123":167,"_125":167,"_45":168,"_127":171,"_161":172},"94712427-655a-4d3f-a9a4-c17abbad6f90","Mecatrônica","mecatronica","2025-04-29T02:19:12.828432+00:00",{"_155":169,"_157":158,"_159":170},5,12419,"mecatronica-1",[173],{"_43":174,"_57":175,"_59":176,"_150":151,"_152":164,"_123":177,"_125":177,"_45":178,"_127":176,"_161":180},"5e92796e-abab-4cd6-903d-33ded7476005","Eletrônica em Mecatrônica","eletronica-em-mecatronica","2025-04-29T03:44:35.328997+00:00",{"_155":179,"_157":158,"_159":170},4,[181],{"_43":182,"_57":183,"_59":184,"_150":151,"_152":174,"_123":185,"_125":185,"_45":186,"_127":184,"_161":187},"65b59c47-5208-4b07-9a93-2b5eb61935bd","Equipamentos Eletrônicos","equipamentos-eletronicos","2025-04-29T04:00:14.680867+00:00",{"_155":158,"_157":158,"_159":170},[],"video",{"_43":118,"_13":113,"_114":-5,"_190":191,"_192":193,"_28":-5,"_194":-5,"_131":193,"_195":196,"_142":-5,"_197":-5,"_198":-5,"_199":-5,"_200":-5,"_45":201,"_202":158,"_203":-5,"_104":204,"_123":205,"_125":205},"duration",20,"source_type","prometheus","iframe_url","provider_video_id","1cd3d633-d690-4f4b-9995-9b0e44994e35","format","quality","file_path","file_size",{"_121":122},"views_count","last_played_at","draft","2025-08-19T11:56:20.758718+00:00","tag",{"_43":147,"_57":148,"_59":149,"_150":151,"_152":-5,"_123":153,"_125":153,"_45":208,"_127":149,"_161":209},{"_155":156,"_157":158,"_159":160},[210],{"_43":164,"_57":165,"_59":166,"_150":151,"_152":147,"_123":167,"_125":167,"_45":211,"_127":171,"_161":212},{"_155":169,"_157":158,"_159":170},[213],{"_43":174,"_57":175,"_59":176,"_150":151,"_152":164,"_123":177,"_125":177,"_45":214,"_127":176,"_161":215},{"_155":179,"_157":158,"_159":170},[216],{"_43":182,"_57":183,"_59":184,"_150":151,"_152":174,"_123":185,"_125":185,"_45":217,"_127":184,"_161":218},{"_155":158,"_157":158,"_159":170},[],"similarQuestions",[221,243],{"_40":222,"_42":41,"_43":223,"_77":224,"_101":41,"_102":239,"_51":240},"47350bfb-e216-4512-8208-9013b4ef0e82","65d40c69-79b9-4d49-b7f1-60bf496e45c2",[225,228,230,233,236],{"_43":226,"_81":82,"_83":227},"92b2721e-2598-4aa3-9818-117bcc898838","

Conversor A/C.

",{"_43":222,"_81":87,"_83":229},"

Conversor D/A.

",{"_43":231,"_81":91,"_83":232},"b0a43708-2eaa-431e-9f5a-5e670c310b88","

Conversor DC/AC.

",{"_43":234,"_81":95,"_83":235},"621496f0-8bcd-4170-ac79-f029b61cf7c4","

Conversor AC/DC.

",{"_43":237,"_81":99,"_83":238},"82beb153-62b5-4492-a5b4-4b250e984761","

Nenhuma das respostas acima.

","

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

",[241],{"_43":174,"_57":175,"_59":176,"_150":151,"_152":164,"_123":177,"_125":177,"_45":242,"_127":176},{"_155":179,"_157":158,"_159":170},{"_40":244,"_42":41,"_43":245,"_77":246,"_101":256,"_102":257,"_51":258},"22d7bbd3-763e-4f0a-b27b-99a913a98b51","b72f32d4-8e5c-4b78-8ca1-fffb9133beaf",[247,249,250,252,254],{"_43":248,"_81":82,"_83":82},"0d271c5e-75f4-4f80-9070-ec6e61f920b4",{"_43":244,"_81":87,"_83":87},{"_43":251,"_81":91,"_83":91},"b0005922-c0f4-41ed-b76f-782d257efeca",{"_43":253,"_81":95,"_83":95},"09ae6274-a5a4-4dd6-b758-fd3d202facb4",{"_43":255,"_81":99,"_83":99},"79575e01-cc80-4c53-8122-bc3a7a15ac9a","Segundo o gabarito oficial divulgado pela CESGRANRIO para o concurso PETROBRAS de 02/05/2010 (Engenheiro de Equipamentos Pleno – Ênfase Eletricidade), a alternativa assinalada como correta na questão 50 é a letra B.","

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?

",[259],{"_43":174,"_57":175,"_59":176,"_150":151,"_152":164,"_123":177,"_125":177,"_45":260,"_127":176},{"_155":179,"_157":158,"_159":170},[262,264,266,268],{"_43":174,"_57":175,"_59":176,"_150":151,"_152":164,"_123":177,"_125":177,"_45":263,"_127":176},{"_155":179,"_157":158,"_159":170},{"_43":182,"_57":183,"_59":184,"_150":151,"_152":174,"_123":185,"_125":185,"_45":265,"_127":184},{"_155":158,"_157":158,"_159":170},{"_43":164,"_57":165,"_59":166,"_150":151,"_152":147,"_123":167,"_125":167,"_45":267,"_127":171},{"_155":169,"_157":158,"_159":170},{"_43":147,"_57":148,"_59":149,"_150":151,"_152":-5,"_123":153,"_125":153,"_45":269,"_127":149},{"_155":156,"_157":158,"_159":160},"tagsTree",[272],{"_43":147,"_57":148,"_59":149,"_150":151,"_152":-5,"_123":153,"_125":153,"_45":273,"_127":149,"_161":274},{"_155":156,"_157":158,"_159":160},[275],{"_43":164,"_57":165,"_59":166,"_150":151,"_152":147,"_123":167,"_125":167,"_45":276,"_127":171,"_161":277},{"_155":169,"_157":158,"_159":170},[278],{"_43":174,"_57":175,"_59":176,"_150":151,"_152":164,"_123":177,"_125":177,"_45":279,"_127":176,"_161":280},{"_155":179,"_157":158,"_159":170},[281],{"_43":182,"_57":183,"_59":184,"_150":151,"_152":174,"_123":185,"_125":185,"_45":282,"_127":184,"_161":283},{"_155":158,"_157":158,"_159":170},[],"videoDislikes",{},"videoLikes",{},"actionData","errors"]

Comentários