Question

Ϯϯ E'E,Z/KEdZK>hdKDK

ŽŶƐŝĚĞƌĞŽƐŝƐƚĞŵĂĚĞĐŽŶƚƌŽůĞĚĞƵŵƉƌŽĐĞƐƐŽŝŶĚƵƐƚƌŝĂůĚĞƐĐƌŝƚŽƉĞůŽĚŝĂŐƌĂŵĂĚĞďůŽĐŽƐĂƉƌĞƐĞŶƚĂĚŽŶĂ ĮŐƵƌĂĂďĂŝǆŽ͗

Figura da questão (imagem do caderno de prova)

Y(s) + R(s) EŽĚŝĂŐƌĂŵĂ, X(s), Y(s), E(s), U(s), P(s) e R(s)ƌĞƉƌĞƐĞŶƚĂŵ͕ƌĞƐƉĞĐƟǀĂŵĞŶƚĞ͕ŽƐƐŝŶĂŝƐĚĞƌĞĨĞƌġŶĐŝĂ͕ƐĂşĚĂ͕ ĞƌƌŽ͕ĂĕĆŽĚĞĐŽŶƚƌŽůĞ͕ƉĞƌƚƵƌďĂĕĆŽŶĂĞŶƚƌĂĚĂĚĂƉůĂŶƚĂĞƌƵşĚ ŽĚĞŵĞĚŝĕĆŽ͘ G(s)ĠĂĨƵŶĕĆŽĚĞƚƌĂŶƐĨĞƌġŶĐŝĂ ĚĂƉůĂŶƚĂĂƐĞƌĐŽŶƚƌŽůĂĚĂ͘KƐĚĞŵĂŝƐďůŽĐŽƐĐŽŶƐƟƚƵĞŵŽĐŽŶƚƌŽ ůĂĚŽƌ͕ƋƵĞĠĚĞƐĐƌŝƚŽƉĞůĂƐƐĞŐƵŝŶƚĞƐĨƵŶĕƁĞƐ ĚĞƚƌĂŶƐĨĞƌġŶĐŝĂ͗ 1 1. H1 (s) = τ1s τ2s 2. H2 (s) = 1 + ατ2s 3. H3 (s) = K ĞŵƋƵĞτ1 , τ2 ͕ α e KƐĆŽĂƐĐŽŶƐƚĂŶƚĞƐŶĆŽŶƵůĂƐƐŝŶƚŽŶŝǌĂĚĂƐƉĞůŽƉƌŽũĞƟƐƚĂĚŽƐŝƐƚĞŵĂĚĞĐŽŶƚƌŽůĞ͘ ŽŶƐŝĚĞƌĞƋƵĞ͕ŶŽƐƚĞƐƚĞƐ͕ĚƵƌĂŶƚĞŽĐŽŵŝƐƐŝŽŶĂŵĞŶƚŽĚŽƐŝƐƚĞŵĂ͕ ǀĞƌŝĮĐŽƵͲƐĞƋƵĞĂĂƉůŝĐĂĕĆŽĚĞƵŵƐŝŶĂů ĚĞƌĞĨĞƌġŶĐŝĂx(t)ĚŽƟƉŽĚĞŐƌĂƵƌĞƐƵůƚĂĞŵƵŵĂĂĕĆŽĚĞĐŽŶƚƌŽůĞu(t)ĐŽŵƵŵĞůĞǀĂĚŽƉƵůƐŽŝŵĞĚŝĂƚĂŵĞŶƚĞ ĂƉſƐĂĂƉůŝĐĂĕĆŽĚŽĚĞŐƌĂƵ͘ƐƐĞƉƵůƐŽĠŝŶĂĚĞƋƵĂĚŽƉĂƌĂŽƉƌŽĐ ĞƐƐŽ͕ƉŽŝƐĐĂƵƐĂĨĂĚŝŐĂƉƌĞĐŽĐĞĚŽĂƚƵĂĚŽƌ͘ WĂƌĂĐŽŶƚŽƌŶĂƌĞƐƐĞƉƌŽďůĞŵĂ͕ĠŶĞĐĞƐƐĄƌŝŽ

Accepted Answer

B) ĂůƚĞƌĂƌĂĞƐƚƌƵƚƵƌĂĚŽĐŽŶƚƌŽůĂĚŽƌ͕ĨĂǌĞŶĚŽĐŽŵƋƵĞĂĂĕĆŽĚĞƌŝ ǀĂƟǀĂĂƚƵĞƐŽŵĞŶƚĞƐŽďƌĞŽƉĞƌĐƵƌƐŽ ĚĞƌĞƚƌŽĂĕĆŽ͘

Answer

A) ĂůƚĞƌĂƌĂĞƐƚƌƵƚƵƌĂĚŽĐŽŶƚƌŽůĂĚŽƌ͕ĨĂǌĞŶĚŽĐŽŵƋƵĞĂĂĕĆŽƉƌŽƉ ŽƌĐŝŽŶĂůĂƚƵĞƐŽŵĞŶƚĞƐŽďƌĞŽƉĞƌĐƵƌƐŽ ĚĞƌĞƚƌŽĂĕĆŽ͘

Answer

C) ŝŶƐĞƌŝƌƵŵĮůƚƌŽƉĂƌĂĂƚĞŶƵĂƌŽĞĨĞŝƚŽĚĂƉĞƌƚƵƌďĂĕĆŽ͕ĂƉſƐĂĂ ůƚĞƌĂĕĆŽĂďƌƵƉƚĂĚŽǀĂůŽƌĚĞƌĞĨĞƌġŶĐŝĂ͘

Answer

D) ŝŶƐĞƌŝƌƵŵĮůƚƌŽƉĂƌĂĂƚĞŶƵĂƌŽĞĨĞŝƚŽĚŽƌƵşĚŽ͕ĂƉſƐĂĂůƚĞƌĂĕ ĆŽĂďƌƵƉƚĂĚŽǀĂůŽƌĚĞƌĞĨĞƌġŶĐŝĂ͘

Answer

E) ĂůƚĞƌĂƌĂĞƐƚƌƵƚƵƌĂĚŽĐŽŶƚƌŽůĂĚŽƌĂƚƵĂůƉĂƌĂƵŵW/ƚƌĂĚŝĐŝŽŶĂů͘ 24 E'E,Z/KEdZK>hdKDK

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