
Quiz de Eletrotécnica para 12º Ano
Quiz
•
Engineering
•
12th Grade
•
Practice Problem
•
Hard
BRUNO BEIRA
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a unidade de medida da resistência elétrica no Sistema Internacional de Unidades (SI)?
Volt
Ohm
Ampere
Watt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a função principal de um transformador em um sistema elétrico?
Converter energia elétrica em energia mecânica
Aumentar ou diminuir a tensão elétrica
Armazenar energia elétrica
Medir a corrente elétrica
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula da Lei de Ohm?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a principal diferença entre um motor de corrente contínua (CC) e um motor de corrente alternada (CA)?
O motor CC é mais eficiente que o motor CA
O motor CA não precisa de manutenção
O motor CC usa corrente contínua, enquanto o motor CA usa corrente alternada
O motor CA é mais barato que o motor CC
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Em um circuito paralelo, se um dos resistores queima, o que acontece com o circuito?
Todo o circuito para de funcionar
A corrente total aumenta
A resistência total diminui
Os outros resistores continuam a funcionar
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a função de um disjuntor em uma instalação elétrica?
Aumentar a tensão
Proteger o circuito contra sobrecargas
Armazenar energia
Medir a corrente
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