Question

&ŝŐƵƌĂϮͲƵƌǀĂĐĂƌĂĐƚĞƌşƐƟĐĂĚŽ>Z͘

0 2 4 6 8 VGS(V) &ŝŐƵƌĂϯͲƵƌǀĂĐĂƌĂĐƚĞƌşƐƟĐĂĚŽDK^&fidͲĐŽƌƌĞŶƚĞĚĞ ĚƌĞŶŽ;/ ͿǆƚĞŶƐĆŽƉŽƌƚĂͲĨŽŶƚĞ;s Ϳ͘ 9 '^

ŽŶƐŝĚĞƌĂŶĚŽƋƵĞŽDK^&fidŝŶŝĐŝĂĂĐŽŶĚƵĕĆŽĐŽŵϯ͕ϬsĂƉůŝĐĂĚŽ ĞŶƚƌĞŽƐƚĞƌŵŝŶĂŝƐĚĂƉŽƌƚĂ;gateͿĞĚĂ ĨŽŶƚĞ;ƐourceͿĞƋƵĞŽŵĞƐŵŽƐĞƌĄĂĐŝŽŶĂĚŽƋƵĂŶĚŽĂŝůƵŵŝŶąŶĐŝĂĚŽĂŵďŝĞŶƚĞĨŽƌƌĞĚƵǌŝĚĂƉĂƌĂŽŝŶƚĞƌǀĂůŽ

ĞŶƚƌĞϱϬĞϭϬϬůƵǆ͘

ĞĂĐŽƌĚŽĐŽŵĂƐĞƐƉĞĐŝĮĐĂĕƁĞƐĨŽƌŶĞĐŝĚĂƐŶŽƉƌŽďůĞŵĂ͕ĠĐŽƌƌĞƚŽĂĮƌŵĂƌƋƵĞĂĨĂŝǆĂƉĂƌĂZyĂĚĞƋƵĂĚĂ

ƉĂƌĂŽƉƌŽũĞƚŽĠĚĞ A 12 000 ĂƚĠϭϴϬϬϬ B 12 000 ĂƚĠϮϰϬϬϬ C ϭϴϬϬϬĂƚĠϮϰϬϬϬ D ϭϴϬϬϬĂƚĠϯϬϬϬϬ E 24 000 ĂƚĠϯϬϬϬϬ

ϯϱ E'E,Z/>ffidZ/

QUESTÃO 34 - Controle e Automação ŵƵŵĂĨĄďƌŝĐĂĚĞĐŝŵĞŶƚŽ͕ŽĐŽŶƚƌŽůĞĚĞƚĞŵƉĞƌĂƚƵƌĂ ĚĞ Ƶŵ ĨŽƌŶŽ Ġ ƌĞĂůŝǌĂĚŽ ƉŽƌ ƵŵĂ ŵĂůŚĂ͕ ĐŽŶĨŽƌŵĞ ŽĚŝĂŐƌĂŵĂĚĞďůŽĐŽƐĚŽƐŝƐƚĞŵĂŝůƵƐƚƌĂĚŽŶĂĮŐƵƌĂ ĂďĂŝǆŽ͘ ŽŶƐŝĚĞƌĞ ƋƵĞ Ž ƐŝƐƚĞŵĂ ƉŽƐƐƵŝ ƵŵĂ ĞŶƚƌĂĚĂ x(t)͕ ƵŵĂ ƐĂşĚĂ y(t)͕ Ƶŵ ƐŝŶĂů ĚĞ ĞƌƌŽ e(t) Ğ ĂƐ ĐŽƌƌĞƐƉŽŶĚĞŶƚĞƐ ƚƌĂŶƐĨŽƌŵĂĚĂƐ ĚĞ >ĂƉůĂĐĞ ĚĞƐƐĞƐ ƐŝŶĂŝƐ͕ĂƐĂďĞƌ͕ X(s)͕ Y(s)͕ E(s)͕ĂůĠŵĚĂƐĐŽŶƐƚĂŶƚĞƐ K e T͕ŵĂŝŽƌĞƐĚŽƋƵĞǌĞƌŽ͘ Controlador Forno Proporcional X(s) + E(s) Y(s) 1 + K x(t) Ts + 1 y(t) - e(t)

WĂƌĂ Ă ƐŝŶƚŽŶŝĂ ĚŽ ŐĂŶŚŽ ĚĂ ŵĂůŚĂ ĚĞ ĐŽŶƚƌŽůĞ͕ ƌĞĂůŝǌŽƵͲƐĞ Ƶŵ ƚĞƐƚĞ ĂƉůŝĐĂŶĚŽͲƐĞ ŶĂ ĞŶƚƌĂĚĂ ĚŽ ƐŝƐƚĞŵĂƵŵƐŝŶĂůĚŽƟƉŽĚĞŐƌĂƵƵŶŝƚĄƌŝŽ͕ X(s) = 1/s. EĞƐƐĞĐĂƐŽ͕ĞƐƉĞƌĂͲƐĞƋƵĞŽƐŝŶĂůĚĞĞƌƌŽ e(t)ƚĞŶĚĂ ĂŽǀĂůŽƌ

A 0.

1 B . K

1 C . K + 1 K D . K + 1

E ∞.

Telecomunicações ŵ Ƶŵ ƐŝƐƚĞŵĂ ĚĞ ĐŽŵƵŶŝĐĂĕƁĞƐ͕ ƉŽŶƚŽ Ă ƉŽŶƚŽ͕ ĚĞƐĞũĂͲƐĞ ƚƌĂŶƐŵŝƟƌ ƚƌġƐ ƐŝŶĂŝƐ ĚĞ ŵĞŶƐĂŐĞŶƐ͕ m (t)͕ m (t) e m (t)͕ ĐƵũŽƐ ŐƌĄĮĐŽƐ ĚĞ ĚĞŶƐŝĚĂĚĞ 1 2 3 ĞƐƉĞĐƚƌĂů ĚĞ ƉŽƚġŶĐŝĂ ƐĆŽ s (Z)͕ s (Z) e s (Z)͕ 1 2 3 ƌĞƐƉĞĐƟǀĂŵĞŶƚĞ͕ĂƉƌĞƐĞŶƚĂĚŽƐĂďĂŝǆŽ͘ƐƐĞƐƐŝŶĂŝƐ ƐĞƌĆŽ ŵƵůƟƉůĞǆĂĚŽƐ Ğŵ ĨƌĞƋƵġŶĐŝĂ ƉŽƌ ŵĞŝŽ ĚĞ ƉŽƌƚĂĚŽƌĂƐŵŽĚƵůĂĚĂƐĞŵĂŵƉůŝƚƵĚĞ;DͿ͘KƐŝŶĂů m (t) ŵŽĚƵůĂ Ğŵ DͲ^ ;ďĂŶĚĂ ůĂƚĞƌĂů ĚƵƉůĂ Ͳ 1 ŽƵďůĞ ^ŝĚĞďĂŶĚͿ ƵŵĂ ƉŽƌƚĂĚŽƌĂ ĐŽŵ ĨƌĞƋƵġŶĐŝĂ Z сϰϬϬϬƌĂĚͬƐ͘KƐŽƵƚƌŽƐĚŽŝƐƐŝŶĂŝƐĚĞŵĞŶƐĂŐĞŵ͕ 1 m (t) e m (t)͕ŵŽĚƵůĂŵĞŵDͲ^^;ďĂŶĚĂůĂƚĞƌĂů 2 3 ƷŶŝĐĂ Ͳ^ŝŶŐůĞ ^ŝĚĞďĂŶĚͿ ƉŽƌƚĂĚŽƌĂƐ ĚĞ ĨƌĞƋƵġŶĐŝĂƐ Z e Z ͕ ŶĞƐƐĂƐĞƋƵġŶĐŝĂ͕ƐĞŶĚŽ Z d Z d Z . 2 3 1 2 3 S1 Ȧ S2 Ȧ S3 Ȧ -1000 1000 Ȧ -1000 1000 Ȧ -2000 2000 Ȧ ŽŶƐŝĚĞƌĂŶĚŽ ƋƵĞ͕ ŶŽ ƌĞĐĞƉƚŽƌ ĚŽ ƐŝƐƚĞŵĂ ĚĞ ĐŽŵƵŶŝĐĂĕĆŽ͕ ƐĞƌĆŽ ƵƟůŝǌĂĚŽƐ ĚĞŵŽĚƵůĂĚŽƌĞƐ Ğ ĮůƚƌŽƐŝĚĞĂŝƐ͕ƋƵĂŝƐƐĆŽŽƐŵĞŶŽƌĞƐǀĂůŽƌĞƐĚĞ Z e 2 Z ͕ ĞŵƌĂĚͬƐ͕ƉĂƌĂƋƵĞƐĞũĂƉŽƐƐşǀĞůĂƌĞĐƵƉĞƌĂĕĆŽ 3 ĚŽƐƚƌġƐƐŝŶĂŝƐĚĞŵĞŶƐĂŐĞŵŵƵůƟƉůĞǆĂĚŽƐ͍

Accepted Answer

C) ϱϬϬϬĞϲϬϬϬ͕ƌĞƐƉĞĐƟǀĂŵĞŶƚĞ͘

Answer

A) ϰϬϬϬĞϱϬϬϬ͕ƌĞƐƉĞĐƟǀĂŵĞŶƚĞ͘

Answer

B) ϰϬϬϬĞϲϬϬϬ͕ƌĞƐƉĞĐƟǀĂŵĞŶƚĞ͘

Answer

D) ϱϬϬϬĞϳϬϬϬ͕ƌĞƐƉĞĐƟǀĂŵĞŶƚĞ͘

Answer

E) ϲϬϬϬĞϳϬϬϬ͕ƌĞƐƉĞĐƟǀĂŵĞŶƚĞ͘ ϯϲ E'E,Z/>ffidZ/ QUESTÃO 35 - Sistemas de Energia Elétrica KŐƌĄĮĐŽĂďĂŝǆŽĂƉƌĞƐĞŶƚĂĂƐĐƵƌǀĂƐĚĞĚĞƐĞŵƉĞŶŚŽĚĞƵŵŵŽƚŽƌĚĞŝŶĚƵĕĆŽƚƌŝĨĄƐŝĐŽĚĞϱϬĐǀĞŵĨƵŶĕĆŽ ĚĂƉŽƚġŶĐŝĂĨŽƌŶĞĐŝĚĂƉĞůŽŵŽƚŽƌăĐĂƌŐĂ͘ĐƵƌǀĂ AƌĞƉƌĞƐĞŶƚĂŽƌĞŶĚŝŵĞŶƚŽ͕ĂĐƵƌǀĂ B͕ŽĨĂƚŽƌĚĞƉŽƚġŶĐŝĂ͕ ĂĐƵƌǀĂC͕ŽĞƐĐŽƌƌĞŐĂŵĞŶƚŽĞĂĐƵƌǀĂ 9͕ĂĐŽƌƌĞŶƚĞĞůĠƚƌŝĐĂ͘ D - Escorregamento D - Corrente em 220V (A)

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