Prova Sistema Elétrico de Aeronaves Células
Autor: Ediclei Jesus | Publicado: 2013-01-04T19:51:00-02:00





PROVA&nbsp;&nbsp; -&nbsp;&nbsp; SISTEMAS ELÉTRICOS DE AERONAVES &nbsp;&nbsp;CÉLULA 


&nbsp;


1- Os cabos elétricos das aeronaves são feitos de quais
materiais: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


a- Cobre e alumel&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;


b- Alumínio e cromel 


c- Alumel e cromel &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


d- Cobre e alumino&nbsp; 


&nbsp;


2- A queda de voltagem nos cabos principais das fontes de
força das aeronaves não deve exceder:


a- 2 %


b- 3 %


c- 4 %


d- 5 %


&nbsp;


3- A resistência entre o ponto massa de um gerador ou
bateria não deve exceder:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a- 0.5 ohms


b- 0.05
ohms&nbsp;&nbsp;&nbsp; 


c- 0.005
ohms&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 


d- 0.0005
ohms&nbsp;&nbsp; 


&nbsp;


4- A resistência de isolação dos cabos e fios pode ser
medida, sem danificar a isolação, com qual instrumento:


a- Multímetro&nbsp; 


b- Megger


c- Ohmimetro&nbsp;&nbsp;&nbsp; 


d- Frequencimetro


&nbsp;


5- Os fios e cabos devem ser identificados com intervalos de
até quantas polegadas:


a- 150¨&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 


b- 15¨&nbsp;&nbsp;&nbsp; 


c- 1.5¨&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;


d- 1¨&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


&nbsp;


6- Os chicotes geralmente devem ser constituídos com menos
de:


a- 25 fios&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;



b- 50 fios 


c- 75 fios&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 


d- 100 fios &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


&nbsp;


7- Os fios paralelos devem ser trançados quando estiverem: &nbsp;


a- Nas vizinhanças de bússolas magnéticas ou flux valve 


b- Nas vizinhanças das bombas de combustível 


c- Nas vizinhanças das válvulas de combustível 


d- Nas vizinhanças do flight data Record&nbsp; 


&nbsp;


8- As curvaturas nos grupos de fios não deve ser inferior a
quantas vezes o diâmetro externo dos grupos de fios: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


a- 50 vezes 


b- 30 vezes&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 


c- 20 vezes &nbsp;


d- 10 vezes 


&nbsp;


9- Se os fios se aproximarem a menos de &nbsp;¼ ” &nbsp;da
borda de um orifício. Devemos usar um (a):


a- Gromete&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


b-
Splice&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


c- Conduite&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


d- Braçadeira


&nbsp;


10- Na parte mais baixa dos conduites rígidos devemos fazer
um furo de dreno de diâmetro igual a: 


a- 1/16”


b- 1/8”


c- 1/4”


d- 1/2”


&nbsp;


11- Nenhum chicote ou fio deve ser direcionado de modo que
fique próximo de qualquer tubulação, a distancia mínima é de:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 


a- 6¨


b- 3¨


c- 1¨


d- 1/2¨


&nbsp;


12- Os parafusos de fixação das braçadeiras de cabo devem
ficar:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 


a- Abaixo do chicote 


b- A 45° do chicote 


c- Acima do chicote


d- A 135° do chicote &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


&nbsp;


13- A amarração com o cordão inteiriço deve ser iniciada na
extremidade mais espessa do chicote com um nó denominado: 


a- Nó cego


b- Nó de porco 


c- Nó duplo 


d- Nó tipo laçada 


&nbsp;


14- Os terminais especiais para fios de alumínio contém um
composto de:&nbsp; 


a- Fósforo&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 


b- Peróxido de chumbo 


c- Óxido de alumínio 


d- Petrolato de zinco 


&nbsp;


15- Entre dois terminais de cobre deve-se instalar o
que:&nbsp; a- Nenhuma arruela&nbsp;&nbsp; 


b- 1 arruela liza 


c- 1 arruela de freno&nbsp;



d- 1 arruela de pressão 


&nbsp;


16- A ligação à massa é encontrada nos sistemas elétricos
das aeronaves para:


a- Proteger a aeronave e o pessoal contra descargas de raios



b- Proporcionas caminhos de retorno da corrente 


c- Evitar o desenvolvimento de potencias de radio freqüência



d- Todas acima 


&nbsp;


17- A resistência de cada conexão à massa não deve exceder:


a- 3 ohms&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;


b- 0.3 ohms &nbsp;


c- 0.03 ohms&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 


d- 0.003 ohms&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 


&nbsp;


18- Qual é a classe do plug que é feita de aço:


a- A


b- C


c- D


d- K


&nbsp;


19- Os circuitos que possuem lâmpadas incandescentes podem
puxar uma corrente inicial muitas vezes maior que a corrente normal de trabalho,
quantas vezes esta corrente inicial é maior que a corrente de trabalho:


a- 1.5 


b- 3


c- 15


d- 30


&nbsp;


20- A aeronave que opera à noite deve ser equipada com luzes
de posição (luzes de navegação). &nbsp;&nbsp;Em que
posição deve ficar a luz verde:


a- Asa esquerda


b- Asa direita 


c- Estabilizador vertical


d- Radome 


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GABARITO&nbsp; –&nbsp; SISTEMAS ELÉTRICOS&nbsp; - CÉLULA &nbsp;


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1- d 


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2- a


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3- c


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4- b


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5- b


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6- c


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7- a


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8- d


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9- a


10- b


11- d


12- c


13- b


14- d


15- a


16- d&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 


17- d


18- d


19- c


20- b


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