
Quiz sobre Sensor de Gás MQ-2
Authored by Marcelo Guilherme Kühl
Physics
12th Grade
Used 1+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a principal função do sensor de gás MQ-2?
Detectar a presença de água no ar
Detectar a presença de gases inflamáveis e fumaça
Medir a temperatura ambiente
Medir a umidade do ar
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a tensão de operação típica do sensor MQ-2?
3V
5V
12V
24V
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o componente principal utilizado no sensor MQ-2 para detectar gases?
Termistor
Fotodiodo
Óxido de estanho (SnO2)
Transistor
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a faixa de detecção de concentração de gás do sensor MQ-2?
10-100 ppm
100-1000 ppm
200-10000 ppm
1000-20000 ppm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a resistência de carga recomendada para o sensor MQ-2?
1 kΩ
5 kΩ
10 kΩ
20 kΩ
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o tempo de aquecimento recomendado para o sensor MQ-2 antes de realizar medições precisas?
10 segundos
1 minuto
5 minutos
24 horas
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a saída típica do sensor MQ-2 quando não há gás presente?
Alta
Baixa
Variável
Nula
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