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Q2002245 Inglês
READ THE FOLLOWING TEXT AND CHOOSE THE OPTION WHICH BEST COMPLETES EACH QUESTION ACCORDING TO IT:

Saving Energy

Just a century ago, humans used very little energy because we had less of the things that consume it. There were no computers, phones, TV, cars, lights, washing machines and all that. After the industrial revolution, people started using a lot more manufactured items such as electronics, automobiles, and home appliances. These items use a lot of energy, but if we all cut its use by half, that would be huge savings, and make a great difference.

Saving energy can be achieved in different ways: 1. Energy conservation, 2. Energy Efficiency, and 3. Recycling. These first two are not the same, even though people often use them to mean the same thing.

1- Energy Conservation: This is the practice that results in less energy being used. For instance, turning the taps, computers, lights, and TV off when not in use. It also includes running in the park or outside instead of running on the treadmill in the gym. Energy conservation is great because we can all do this everywhere and anytime. It is a fundamental behavior we must acquire.

2- Energy Efficiency: This is the use of manufacturing techniques and technology _______ produce things that use less energy for the same result. For example, if a heater is designed to warm your home with less energy than regular heaters, that would be an energy efficient heater. If your washing machine uses less energy to do the same job as other washers, that is an energy efficient washer. An interesting fact is that homes built in the U.S. after 2000 are about 30% bigger, but they use less energy than older homes.

3- Recycling: This involves the use of waste or old materials to make new ones, like collecting all old newspapers from the town at the end of every day and turning the papers into fresh paper for printing again. We can collect all plastic bottles and send them to be used for new plastic bottles or used for children plastic toys. Recycling saves energy __________ less energy is used to recycle than to turn new raw materials into new products.
This means that to save energy, we should use all these great ways. If we all try to do this, together we can save some money and use less natural resources too.

(Adapted from: https://goo.gl/AyZdzW. Access: 01/30/2018)
The word huge in “that would be huge savings” (paragraph 1) can be substituted by the word
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Q2002244 Inglês
READ THE FOLLOWING TEXT AND CHOOSE THE OPTION WHICH BEST COMPLETES EACH QUESTION ACCORDING TO IT:

Saving Energy

Just a century ago, humans used very little energy because we had less of the things that consume it. There were no computers, phones, TV, cars, lights, washing machines and all that. After the industrial revolution, people started using a lot more manufactured items such as electronics, automobiles, and home appliances. These items use a lot of energy, but if we all cut its use by half, that would be huge savings, and make a great difference.

Saving energy can be achieved in different ways: 1. Energy conservation, 2. Energy Efficiency, and 3. Recycling. These first two are not the same, even though people often use them to mean the same thing.

1- Energy Conservation: This is the practice that results in less energy being used. For instance, turning the taps, computers, lights, and TV off when not in use. It also includes running in the park or outside instead of running on the treadmill in the gym. Energy conservation is great because we can all do this everywhere and anytime. It is a fundamental behavior we must acquire.

2- Energy Efficiency: This is the use of manufacturing techniques and technology _______ produce things that use less energy for the same result. For example, if a heater is designed to warm your home with less energy than regular heaters, that would be an energy efficient heater. If your washing machine uses less energy to do the same job as other washers, that is an energy efficient washer. An interesting fact is that homes built in the U.S. after 2000 are about 30% bigger, but they use less energy than older homes.

3- Recycling: This involves the use of waste or old materials to make new ones, like collecting all old newspapers from the town at the end of every day and turning the papers into fresh paper for printing again. We can collect all plastic bottles and send them to be used for new plastic bottles or used for children plastic toys. Recycling saves energy __________ less energy is used to recycle than to turn new raw materials into new products.
This means that to save energy, we should use all these great ways. If we all try to do this, together we can save some money and use less natural resources too.

(Adapted from: https://goo.gl/AyZdzW. Access: 01/30/2018)
The words such as in “such as electronics, automobiles, and home appliances” (paragraph 1) is used to indicate
Alternativas
Q2002243 Inglês
READ THE FOLLOWING TEXT AND CHOOSE THE OPTION WHICH BEST COMPLETES EACH QUESTION ACCORDING TO IT:

Saving Energy

Just a century ago, humans used very little energy because we had less of the things that consume it. There were no computers, phones, TV, cars, lights, washing machines and all that. After the industrial revolution, people started using a lot more manufactured items such as electronics, automobiles, and home appliances. These items use a lot of energy, but if we all cut its use by half, that would be huge savings, and make a great difference.

Saving energy can be achieved in different ways: 1. Energy conservation, 2. Energy Efficiency, and 3. Recycling. These first two are not the same, even though people often use them to mean the same thing.

1- Energy Conservation: This is the practice that results in less energy being used. For instance, turning the taps, computers, lights, and TV off when not in use. It also includes running in the park or outside instead of running on the treadmill in the gym. Energy conservation is great because we can all do this everywhere and anytime. It is a fundamental behavior we must acquire.

2- Energy Efficiency: This is the use of manufacturing techniques and technology _______ produce things that use less energy for the same result. For example, if a heater is designed to warm your home with less energy than regular heaters, that would be an energy efficient heater. If your washing machine uses less energy to do the same job as other washers, that is an energy efficient washer. An interesting fact is that homes built in the U.S. after 2000 are about 30% bigger, but they use less energy than older homes.

3- Recycling: This involves the use of waste or old materials to make new ones, like collecting all old newspapers from the town at the end of every day and turning the papers into fresh paper for printing again. We can collect all plastic bottles and send them to be used for new plastic bottles or used for children plastic toys. Recycling saves energy __________ less energy is used to recycle than to turn new raw materials into new products.
This means that to save energy, we should use all these great ways. If we all try to do this, together we can save some money and use less natural resources too.

(Adapted from: https://goo.gl/AyZdzW. Access: 01/30/2018)
About a century ago, people used less energy because of the
Alternativas
Q2002241 Raciocínio Lógico
Duas proposições compostas são equivalentes se seus valores lógicos são iguais. Considerando que p e q são proposições lógicas, então é CORRETO afirmar que a proposição (p Ʌ ~ q) é equivalente a:
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Q2002238 Matemática
Os sucessivos termos da sequência: (47, 42, 37, 33, 29, 26, x, y, z, w) são obtidos através de uma lei de formação. Obedecendo a essa lei, é CORRETO afirmar que o valor de (x + y +z + w) é igual a: 
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Q2002230 Português
Leia o trecho abaixo para responder à questão.

   A possibilidade de tirar fotos panorâmicas já é bastante conhecida pelos usuários de iPhone. As imagens capturadas com este recurso, principalmente as que mostram a natureza ou algo do tipo, podem ficar bem interessantes.
  O que muitas pessoas não sabem é que não é preciso tirar a foto panorâmica da esquerda para a direita, como já vem definido na câmera. Ao tocar na tela, o ponto inicial da foto muda de lado.

(globo.com 28/03/2018)
Em: “A possibilidade de tirar fotos panorâmicas é bastante conhecida pelos usuários de iPhone. As imagens capturadas com este recurso, principalmente as que mostram a natureza ou algo do tipo, podem ficar bem interessantes.”, os termos destacados são
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Q2002212 Segurança e Saúde no Trabalho
“Representação gráfica de um conjunto de fatores presentes nos locais de trabalho, capazes de acarretar prejuízos à saúde dos trabalhadores: acidentes e doenças de trabalho.” Essa definição refere-se ao:
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Q2002211 Física
Um autotransformador ideal rebaixa a tensão de 13,8 kV para 345 V. Com uma potência entregue de 6,9 kVA, determine o valor da corrente I1.

                                                          Imagem associada para resolução da questão              
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Q2002210 Física
A ponte de Wheatstone encontra-se em equilíbrio, ou seja, VA = VB. Para esta situação, qual o valor de R4, se R1 = 2.R2 = 4.R3?
                                                              Imagem associada para resolução da questão                                   
Alternativas
Q2002209 Matemática
Uma planta baixa retangular foi desenhada em escala 1:50. Considerando que a área desenhada tem 400 cm² e o comprimento 40 cm, qual o perímetro da área original?
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Q2002208 Engenharia Elétrica
Os núcleos dos transformadores são constituídos por lâminas sobrepostas, isoladas uma das outras, com o objetivo de
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Q2002207 Engenharia Elétrica
Equipamentos instalados na parte superior das torres das linhas de transmissão para evitar que descargas atmosféricas atinjam os condutores de fase são
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Q2002206 Engenharia Elétrica
As afirmativas referem-se a um sistema de transmissão de energia típico.
I. Trabalha com altos níveis de tensão. II. Possui várias malhas, interligando blocos de geração aos pontos de consumo. III. É predominantemente radial.
É CORRETO o que se afirma em:
Alternativas
Q2002205 Engenharia Elétrica

O símbolo de dispositivo de acionamentos de motores, mostrado abaixo, corresponde a:



Alternativas
Q2002204 Eletricidade

Qual o valor da tensão em A?


Imagem associada para resolução da questão

Alternativas
Q2002203 Eletricidade
Um projeto básico de proteção deve considerar propriedades fundamentais para um bom desempenho. Dentre elas podemos destacar a seletividade:
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Q2002202 Eletricidade
A partir dos dados de placa de um motor trifásico, qual a tensão medida entre os terminais T1 e T6 quando este for ligado em estrela?
Imagem associada para resolução da questão
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Q2002201 Eletricidade
Utilizando-se de um wattímetro, um técnico mediu 4 kW em uma carga monofásica. Sabendo que o fator de potência é de 0,80, qual o valor da potência reativa?
Alternativas
Q2002200 Segurança e Saúde no Trabalho
Conforme a NBR 14093, em uma subestação de transformação que é parte integrante de uma instalação residencial, comercial ou industrial, somente será permitido o emprego de transformadores
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Q2002199 Engenharia Mecânica
Um motor síncrono trifásico é alimentado por uma tensão de 440V/60 Hz. Sabendo-se que o motor está sem carga e possui 4 polos, qual sua velocidade de rotação em rpm?
Alternativas
Respostas
481: A
482: D
483: C
484: B
485: A
486: A
487: C
488: D
489: C
490: B
491: C
492: A
493: A
494: C
495: C
496: D
497: A
498: A
499: B
500: C