Questões de Engenharia e Arquitetura · INEP (ENEM)

Engenharia e ArquiteturaTransformadoresINEP (ENEM) 2014

ENADE

Questão de Engenharia e Arquitetura

hŵƚƌĂŶƐĨŽƌŵĂĚŽƌŵŽŶŽĨĄƐŝĐŽĐŽŶƐŝƐƚĞĞƐƐĞŶĐŝĂůŵĞŶƚĞĚĞĚƵĂƐďŽďŝŶĂƐĐŽŵŶƷĐůĞŽĐŽŵƵŵ͘ůŝŵĞŶƚĂŶĚŽ ƵŵĚŽƐĞŶƌŽůĂŵĞŶƚŽƐĐŽŵƚĞŶƐĆŽĂůƚĞƌŶĂĚĂ͕ĐŽŵŽƌĞƐƉĞĐƟǀŽǀĂůŽƌĚĞƚĞŶƐĆŽŶŽŵŝŶĂů͕ƚĞŵͲƐĞƵŵŇƵdžŽ ŵĂŐŶĠƟĐŽǀĂƌŝĄǀĞůƋƵĞ͕ĂŐŝŶĚŽŶŽŝŶƚĞƌŝŽƌĚŽŶƷĐůĞŽ͕ĂƟ ŶŐĞŽŽƵƚƌŽĞŶƌŽůĂŵĞŶƚŽ͕ƉƌŽǀŽĐĂŶĚŽŽĂƉĂƌĞĐŝŵĞŶƚŽ ĚĞƵŵĂƚĞŶƐĆŽĂůƚĞƌŶĂĚĂŶĞƐƐĞĞŶƌŽůĂŵĞŶƚŽƉŽƌĐŽŶƚĂĚĂŝŶĚƵĕĆŽŵĂŐŶĠƟĐĂ͘KŶƷĐůĞŽĚŽƚƌĂŶƐĨŽƌŵĂĚŽƌ ŵŽŶŽĨĄƐŝĐŽ ŶŽƌŵĂůŵĞŶƚĞ Ġ ĐŽŶƐƟƚƵşĚŽ ĚĞ ŵĂƚĞƌŝĂů ĨĞƌƌŽŵĂŐŶĠƟĐŽ Ğ Ž ŇƵdžŽ ŵĂŐŶĠƟĐŽ ǀĂƌŝĄǀĞů ĂƚƵĂƌĄ ƚĂŵďĠŵƐŽďƌĞŽŶƷĐůĞŽĞƉƌŽĚƵnjŝƌĄĐŽƌƌĞŶƚĞƐŝŶĚƵnjŝĚĂƐ;ƉĂƌĂƐŝƚĂƐͿŶĞƐƐĞĨĞƌƌŽ͘WĂƌĂŵŝŶŝŵŝnjĂƌŽƐĞĨĞŝƚŽƐĚĂƐ ĐŽƌƌĞŶƚĞƐƉĂƌĂƐŝƚĂƐƐĆŽƵƟůŝnjĂĚĂƐĐŚĂƉĂƐĚĞĨĞƌƌŽŵĂŐŶĠƟĐŽ͕ĚĞĞƐƉĞƐƐƵƌĂƌĞĚƵnjŝĚĂ͕ŝƐŽůĂĚĂƐĞůĞƚƌŝĐĂŵĞŶƚĞ ƵŵĂĚĂŽƵƚƌĂĞŵŽŶƚĂĚĂƐĞŵĨŽƌŵĂĚĞŶƷĐůĞŽ͘ ŽŶƐŝĚĞƌĞ Ƶŵ ƚƌĂŶƐĨŽƌŵĂĚŽƌ ŵŽŶŽĨĄƐŝĐŽ ϮϮϬsͬϭϭϬs͕ ϲϬ ,nj͕ ƋƵĞ ƉŽƐ ƐƵŝ Ƶŵ ŶƷĐůĞŽ ĨŽƌŵĂĚŽ ƉŽƌ ůąŵŝŶĂƐ ĚĞŵĂƚĞƌŝĂůĨĞƌƌŽͲƐŝůşĐŝŽ;&ĞͲ^ŝͿ͕ĐŽŶĨŽƌŵĞŝůƵƐƚƌĂĚŽŶĂĮŐƵƌĂϭĞƋƵĞĞƐƚĄŽƉĞƌĂŶĚŽĂǀĂnjŝŽ͕ĐŽŵŽƉƌŝŵĄƌŝŽ ĂůŝŵĞŶƚĂĚŽĐŽŵŽƐǀĂůŽƌĞƐŶŽŵŝŶĂŝƐĚĞƚĞŶƐĆŽĞĨƌĞƋƵġŶĐŝĂ͘

Figura da questão (imagem do caderno de prova)

&ŝŐƵƌĂϭʹdƌĂŶƐĨŽƌŵĂĚŽƌŵŽŶŽĨĄƐŝĐŽʹŶƷĐůĞŽůĂŵŝŶĂĚŽ͘ ^ĂďĞͲƐĞĂŝŶĚĂƋƵĞĂĚĞŶƐŝĚĂĚĞĚĞŇƵdžŽŵĄŐŶĠƟĐŽ;B ĞŵϲϬ,nj͕ǀĂƌŝĂĐŽŶĨŽƌŵĞŵŽƐƚƌĂĚŽŶĂĮŐƵƌĂϮ͘ 2.2 2.0 1.8 1.6 1.4 2 1.2 Wb/m , 1.0 max B 0.8 0.6 0.4 0.2 0 0.0001 0.001 0.01 ͿĞŵĨƵŶĕĆŽĚĂƐƉĞƌĚĂƐƉŽƌƋƵŝůŽŐƌĂŵĂĚĞŵĂƚĞƌŝĂů͕ max 0.1 1 10 Pc, W/kg &ŝŐƵƌĂϮʹĞŶƐŝĚĂĚĞĚĞŇƵdžŽŵĄŐŶĠƟĐŽ;B max &/d'Z>͕͖͘͘</E'^>fiz͕͖͘hDE^͕^͘͘ ͿĞŵĨƵŶĕĆŽĚĂƐƉĞƌĚĂƐŶŽŶƷĐůĞŽ;ƌŵĐŽ/ŶĐͿ͘ Máquinas Elétricas:ĐŽŵŝŶƚƌŽĚƵĕĆŽăĞůĞƚƌƀŶŝĐĂĚĞƉŽƚġŶĐŝĂ͕ϲĞĚ͕͘ WŽƌƚŽůĞŐƌĞ͗ŽŽŬŵĂŶ͕ϮϬϬϴ;ĂĚĂƉƚĂĚŽͿ͘ 19 E'E,Z/>ffidZ/ ƉĂƌƟƌĚĂƐŝŶĨŽƌŵĂĕƁĞƐĂƉƌĞƐĞŶƚĂĚĂƐ͕ĂǀĂůŝĞĂƐĂĮƌŵĂĕƁĞƐĂƐĞŐƵŝƌ͘ /͘ ƚĞŶƐĆŽŝŶĚƵnjŝĚĂŶŽƐĞĐƵŶĚĄƌŝŽĚŽƚƌĂŶƐĨŽƌŵĂĚŽƌĚĞƉĞŶĚĞĚĂ ƌĞƐŝƐƚġŶĐŝĂĚŽĞŶƌŽůĂŵĞŶƚŽ͘ //͘ ƐĐŽƌƌĞŶƚĞƐŝŶĚƵnjŝĚĂƐŶĂƐůąŵŝŶĂƐĚŽŶƷĐůĞŽůĂŵŝŶĂĚŽƐĆŽƉ ƌŽƉŽƌĐŝŽŶĂŝƐăĞƐƉĞƐƐƵƌĂĚĂƐŵĞƐŵĂƐ͘ ///͘ ƐƉĞƌĚĂƐƉŽƌĐŽƌƌĞŶƚĞƐŝŶĚƵnjŝĚĂƐŶĂƐůąŵŝŶĂƐĚŽŶƷĐůĞŽƐĆ ŽƉƌŽƉŽƌĐŝŽŶĂŝƐăĚĞŶƐŝĚĂĚĞĚĞŇƵdžŽ;B Ϳ ŶŽŶƷĐůĞŽ͘ max /s͘ ƵƟůŝnjĂĕĆŽĚĂĚŽƉĂŐĞŵĚĞƐŝůşĐŝŽũƵŶƚŽĐŽŵŽĨĞƌƌŽƚĞŵĂĨƵŶĕĆŽĚĞĂƵŵĞŶƚĂƌĂƌĞƐŝƐƚġŶĐŝĂĞůĠƚƌŝĐĂ ĚŽŵĂƚĞƌŝĂůĞĂƐƐŝŵƌĞĚƵnjŝƌĂƐƉĞƌĚĂƐƉŽƌĐŽƌƌĞŶƚĞƐŝŶĚƵnjŝĚĂƐ͘ ĐŽƌƌĞƚŽĂƉĞŶĂƐŽƋƵĞƐĞĂĮƌŵĂĞŵ

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