Foram encontradas 70 questões.
Um sistema dinâmico, utilizado para controle de uma rede automatizada, forneceu dados processados ao longo do tempo e que permitiram a construção do quadro abaixo.
A partir dos dados assinalados, mantendo-se a mesma disposição, construiu-se uma matriz M.
O valor do determinante associado à matriz M é
A partir dos dados assinalados, mantendo-se a mesma disposição, construiu-se uma matriz M.
O valor do determinante associado à matriz M é
Provas
Questão presente nas seguintes provas
Atualmente, muitos sistemas têm sido desenvolvidos na parte física do processo de automação industrial, destacando-se a transmissão de informação para controle das operações. As redes fazem a comunicação entre diferentes setores com o objetivo de trocar informações.
As chamadas redes de chão de fábrica
As chamadas redes de chão de fábrica
Provas
Questão presente nas seguintes provas
A maioria das empresas procura, atualmente, otimizar a conectividade de suas redes através da automação baseada em soluções da tecnologia da informação. Já é comum a interligação de controladores e de outros dispositivos com tendência aos barramentos de campo, que serão gradualmente integrados a outros sistemas de automação.
Tendo em vista a necessidade crescente de segurança no sistema de automação, os usuários podem assumir alguns cuidados, como
Tendo em vista a necessidade crescente de segurança no sistema de automação, os usuários podem assumir alguns cuidados, como
Provas
Questão presente nas seguintes provas
Considere as afirmativas abaixo que se referem às dificuldades que o uso de ondas de rádio em alta frequência, como alternativa aos cabos coaxiais ou fibras óticas, apresentam no processo de transmissão de dados entre redes de computadores conectados aos sistemas de automação.
I – O uso de ondas de rádio em alta frequência depende de regulamentação junto aos órgãos públicos.
II – O uso de ondas de rádio em alta frequência gera problemas de autenticação junto aos usuários.
III – O uso de ondas de rádio em alta frequência está sujeito à ocorrência de interferência entre os componentes do sistema.
IV – O uso de ondas de rádio em alta frequência impossibilita a existência de unidades transceptoras móveis.
Está correto APENAS o que se afirma em
I – O uso de ondas de rádio em alta frequência depende de regulamentação junto aos órgãos públicos.
II – O uso de ondas de rádio em alta frequência gera problemas de autenticação junto aos usuários.
III – O uso de ondas de rádio em alta frequência está sujeito à ocorrência de interferência entre os componentes do sistema.
IV – O uso de ondas de rádio em alta frequência impossibilita a existência de unidades transceptoras móveis.
Está correto APENAS o que se afirma em
Provas
Questão presente nas seguintes provas
Com o objetivo de exercer o controle e a supervisão de plantas industriais, é frequente a utilização do sistema SCADA (supervisory control and data acquisition). O seu uso permite acesso a informações sobre o estado atual do sistema através de recursos que podem ser visíveis na tela dos computadores.
Outra característica importante no software, utilizada no sistema, é a
Outra característica importante no software, utilizada no sistema, é a
Provas
Questão presente nas seguintes provas
O sistema de automação de uma indústria prevê uma operação com sinais que se propagam com o comprimento de onda de 6000 angstrons e na velocidade da luz, que é de 300.000 km/s.
Tendo em vista a necessidade de utilização de sistemas sensores capazes de decodificar esses sinais, a frequência de recepção, em hertz, é
Tendo em vista a necessidade de utilização de sistemas sensores capazes de decodificar esses sinais, a frequência de recepção, em hertz, é
Provas
Questão presente nas seguintes provas
Os sistemas de controle envolvem componentes de diferentes tipos. Na engenharia de controle é comum representar esses componentes por modelos matemáticos. A respeito desses modelos, observe as afirmativas a seguir.
I - As relações entre entrada-saída de muitos componentes não lineares deverão ser linearizadas em torno dos pontos de operação, para limitar a faixa de variáveis.
II - O modelo matemático deve representar os aspectos essenciais de um componente físico.
III - As previsões do comportamento do sistema, baseadas no modelo matemático, devem ser razoavelmente precisas.
Está correto o que se afirma em
I - As relações entre entrada-saída de muitos componentes não lineares deverão ser linearizadas em torno dos pontos de operação, para limitar a faixa de variáveis.
II - O modelo matemático deve representar os aspectos essenciais de um componente físico.
III - As previsões do comportamento do sistema, baseadas no modelo matemático, devem ser razoavelmente precisas.
Está correto o que se afirma em
Provas
Questão presente nas seguintes provas
O engenheiro responsável por sistemas de automação deve atender às especificações das tarefas a serem realizadas. Alguns desses fatores devem ser interpretados através de modelos matemáticos.
Um fator que NÃO está associado a interpretações através de modelos matemáticos é o(a)
Um fator que NÃO está associado a interpretações através de modelos matemáticos é o(a)
Provas
Questão presente nas seguintes provas
Safety Meeting Presentation
The expressions “Complying with" and “follow through" in the fragments “Complying with OSHA regulations isn't always easy," (lines 10-11) and “Then it's up to you to follow through the task and use the equipment as you were trained." (lines 23-24) may, respectively, be substituted, without change in meaning, by Today's meeting is really about you. I can stand
in front of you and talk about working safely and what
procedures to follow until I'm blue in the face. But until
you understand the need for working safely, until you
are willing to be responsible for your safety, it doesn't
mean a whole lot.
Some of you may be familiar with OSHA - the Occupational Safety & Health Administration. The sole purpose of this agency is to keep American workers safe. Complying with OSHA regulations isn't always easy, but if we work together, we can do it. Yet, complying with regulations is not the real reason for working safely. Our real motive is simple. We care about each and every one of you and will do what is necessary to prevent you from being injured.
However, keeping our workplace safe takes input from everyone. Management, supervisor, and all of you have to come together on this issue, or we're in trouble. For example, upper management has to approve the purchase of safe equipment. Supervisors, including myself, have to ensure that each of you knows how to use that equipment safely. Then it's up to you to follow through the task and use the equipment as you were trained. If any one part of this chain fails, accidents are going to happen and people are going to get hurt.
Responsibility Number One - Recognize Hazards
At the core of your safety responsibilities lies the task of recognizing safety and health hazards. In order to do that, you must first understand what constitutes a hazard. Extreme hazards are often obvious. Our hopes are that you won't find too many of those around here.
There are, however, more subtle hazards that won't jump up and bite you. As a result of your safety training and meetings like these, some things may come to mind. For example, a machine may not be easy to lock out. Common practice may be to use a tag. This is a potential hazard and should be discussed. Maybe something can be changed to make it easier to use a lock. Other subtle hazards include such things as frayed electrical cords, a loose machine guard, a cluttered aisle, or maybe something that just doesn't look right.
Responsibility Number Two - Report Hazards
A big part of recognizing hazards is using your instincts. Nobody knows your job as well as you do, so we're counting on you to let us know about possible problems. Beyond recognizing hazards, you have to correct them or report them to someone who can. This too, is a judgement call. For example, if something spills in your work area you can probably clean it up yourself. However, if there is an unlabeled chemical container and you have no idea what it is, you should report it to your supervisor.
Additional Employee Responsibilities
Good housekeeping is a major part of keeping your work area safe. For example, you should take a few minutes each day to ensure that aisles, hallways, and stairways in your work area are not obstructed. If boxes, equipment, or anything else is left to pile up, you have a tripping hazard on your hands. Those obstructions could keep you from exiting the building quickly and safely should you face an emergency situation.
Also watch out for spills. These can lead to slips and falls. Flammable materials are another thing to be aware of. Make sure they are disposed of properly.
Keep Thinking. Even if you're doing your job safely and you are avoiding hazards, there are often even better ways to work safely. If you have ideas for improving the safety of your job or that of co-workers, share them.
Concluding Remarks
While nothing we do can completely eliminate the threat of an incident, we can work together to improve our odds. As I said, this must be a real team effort and I'm counting on input from all of you. Let's keep communicating and continue to improve safety.
Available at: <http://www.ncsu.edu/ehs/www99/right/training/meeting/emplores.html>.Retrieved on: April 1st, 2012. Adapted.
Some of you may be familiar with OSHA - the Occupational Safety & Health Administration. The sole purpose of this agency is to keep American workers safe. Complying with OSHA regulations isn't always easy, but if we work together, we can do it. Yet, complying with regulations is not the real reason for working safely. Our real motive is simple. We care about each and every one of you and will do what is necessary to prevent you from being injured.
However, keeping our workplace safe takes input from everyone. Management, supervisor, and all of you have to come together on this issue, or we're in trouble. For example, upper management has to approve the purchase of safe equipment. Supervisors, including myself, have to ensure that each of you knows how to use that equipment safely. Then it's up to you to follow through the task and use the equipment as you were trained. If any one part of this chain fails, accidents are going to happen and people are going to get hurt.
Responsibility Number One - Recognize Hazards
At the core of your safety responsibilities lies the task of recognizing safety and health hazards. In order to do that, you must first understand what constitutes a hazard. Extreme hazards are often obvious. Our hopes are that you won't find too many of those around here.
There are, however, more subtle hazards that won't jump up and bite you. As a result of your safety training and meetings like these, some things may come to mind. For example, a machine may not be easy to lock out. Common practice may be to use a tag. This is a potential hazard and should be discussed. Maybe something can be changed to make it easier to use a lock. Other subtle hazards include such things as frayed electrical cords, a loose machine guard, a cluttered aisle, or maybe something that just doesn't look right.
Responsibility Number Two - Report Hazards
A big part of recognizing hazards is using your instincts. Nobody knows your job as well as you do, so we're counting on you to let us know about possible problems. Beyond recognizing hazards, you have to correct them or report them to someone who can. This too, is a judgement call. For example, if something spills in your work area you can probably clean it up yourself. However, if there is an unlabeled chemical container and you have no idea what it is, you should report it to your supervisor.
Additional Employee Responsibilities
Good housekeeping is a major part of keeping your work area safe. For example, you should take a few minutes each day to ensure that aisles, hallways, and stairways in your work area are not obstructed. If boxes, equipment, or anything else is left to pile up, you have a tripping hazard on your hands. Those obstructions could keep you from exiting the building quickly and safely should you face an emergency situation.
Also watch out for spills. These can lead to slips and falls. Flammable materials are another thing to be aware of. Make sure they are disposed of properly.
Keep Thinking. Even if you're doing your job safely and you are avoiding hazards, there are often even better ways to work safely. If you have ideas for improving the safety of your job or that of co-workers, share them.
Concluding Remarks
While nothing we do can completely eliminate the threat of an incident, we can work together to improve our odds. As I said, this must be a real team effort and I'm counting on input from all of you. Let's keep communicating and continue to improve safety.
Available at: <http://www.ncsu.edu/ehs/www99/right/training/meeting/emplores.html>.Retrieved on: April 1st, 2012. Adapted.
Provas
Questão presente nas seguintes provas
Safety Meeting Presentation
The main purpose of the text is to Today's meeting is really about you. I can stand
in front of you and talk about working safely and what
procedures to follow until I'm blue in the face. But until
you understand the need for working safely, until you
are willing to be responsible for your safety, it doesn't
mean a whole lot.
Some of you may be familiar with OSHA - the Occupational Safety & Health Administration. The sole purpose of this agency is to keep American workers safe. Complying with OSHA regulations isn't always easy, but if we work together, we can do it. Yet, complying with regulations is not the real reason for working safely. Our real motive is simple. We care about each and every one of you and will do what is necessary to prevent you from being injured.
However, keeping our workplace safe takes input from everyone. Management, supervisor, and all of you have to come together on this issue, or we're in trouble. For example, upper management has to approve the purchase of safe equipment. Supervisors, including myself, have to ensure that each of you knows how to use that equipment safely. Then it's up to you to follow through the task and use the equipment as you were trained. If any one part of this chain fails, accidents are going to happen and people are going to get hurt.
Responsibility Number One - Recognize Hazards
At the core of your safety responsibilities lies the task of recognizing safety and health hazards. In order to do that, you must first understand what constitutes a hazard. Extreme hazards are often obvious. Our hopes are that you won't find too many of those around here.
There are, however, more subtle hazards that won't jump up and bite you. As a result of your safety training and meetings like these, some things may come to mind. For example, a machine may not be easy to lock out. Common practice may be to use a tag. This is a potential hazard and should be discussed. Maybe something can be changed to make it easier to use a lock. Other subtle hazards include such things as frayed electrical cords, a loose machine guard, a cluttered aisle, or maybe something that just doesn't look right.
Responsibility Number Two - Report Hazards
A big part of recognizing hazards is using your instincts. Nobody knows your job as well as you do, so we're counting on you to let us know about possible problems. Beyond recognizing hazards, you have to correct them or report them to someone who can. This too, is a judgement call. For example, if something spills in your work area you can probably clean it up yourself. However, if there is an unlabeled chemical container and you have no idea what it is, you should report it to your supervisor.
Additional Employee Responsibilities
Good housekeeping is a major part of keeping your work area safe. For example, you should take a few minutes each day to ensure that aisles, hallways, and stairways in your work area are not obstructed. If boxes, equipment, or anything else is left to pile up, you have a tripping hazard on your hands. Those obstructions could keep you from exiting the building quickly and safely should you face an emergency situation.
Also watch out for spills. These can lead to slips and falls. Flammable materials are another thing to be aware of. Make sure they are disposed of properly.
Keep Thinking. Even if you're doing your job safely and you are avoiding hazards, there are often even better ways to work safely. If you have ideas for improving the safety of your job or that of co-workers, share them.
Concluding Remarks
While nothing we do can completely eliminate the threat of an incident, we can work together to improve our odds. As I said, this must be a real team effort and I'm counting on input from all of you. Let's keep communicating and continue to improve safety.
Available at: <http://www.ncsu.edu/ehs/www99/right/training/meeting/emplores.html>.Retrieved on: April 1st, 2012. Adapted.
Some of you may be familiar with OSHA - the Occupational Safety & Health Administration. The sole purpose of this agency is to keep American workers safe. Complying with OSHA regulations isn't always easy, but if we work together, we can do it. Yet, complying with regulations is not the real reason for working safely. Our real motive is simple. We care about each and every one of you and will do what is necessary to prevent you from being injured.
However, keeping our workplace safe takes input from everyone. Management, supervisor, and all of you have to come together on this issue, or we're in trouble. For example, upper management has to approve the purchase of safe equipment. Supervisors, including myself, have to ensure that each of you knows how to use that equipment safely. Then it's up to you to follow through the task and use the equipment as you were trained. If any one part of this chain fails, accidents are going to happen and people are going to get hurt.
Responsibility Number One - Recognize Hazards
At the core of your safety responsibilities lies the task of recognizing safety and health hazards. In order to do that, you must first understand what constitutes a hazard. Extreme hazards are often obvious. Our hopes are that you won't find too many of those around here.
There are, however, more subtle hazards that won't jump up and bite you. As a result of your safety training and meetings like these, some things may come to mind. For example, a machine may not be easy to lock out. Common practice may be to use a tag. This is a potential hazard and should be discussed. Maybe something can be changed to make it easier to use a lock. Other subtle hazards include such things as frayed electrical cords, a loose machine guard, a cluttered aisle, or maybe something that just doesn't look right.
Responsibility Number Two - Report Hazards
A big part of recognizing hazards is using your instincts. Nobody knows your job as well as you do, so we're counting on you to let us know about possible problems. Beyond recognizing hazards, you have to correct them or report them to someone who can. This too, is a judgement call. For example, if something spills in your work area you can probably clean it up yourself. However, if there is an unlabeled chemical container and you have no idea what it is, you should report it to your supervisor.
Additional Employee Responsibilities
Good housekeeping is a major part of keeping your work area safe. For example, you should take a few minutes each day to ensure that aisles, hallways, and stairways in your work area are not obstructed. If boxes, equipment, or anything else is left to pile up, you have a tripping hazard on your hands. Those obstructions could keep you from exiting the building quickly and safely should you face an emergency situation.
Also watch out for spills. These can lead to slips and falls. Flammable materials are another thing to be aware of. Make sure they are disposed of properly.
Keep Thinking. Even if you're doing your job safely and you are avoiding hazards, there are often even better ways to work safely. If you have ideas for improving the safety of your job or that of co-workers, share them.
Concluding Remarks
While nothing we do can completely eliminate the threat of an incident, we can work together to improve our odds. As I said, this must be a real team effort and I'm counting on input from all of you. Let's keep communicating and continue to improve safety.
Available at: <http://www.ncsu.edu/ehs/www99/right/training/meeting/emplores.html>.Retrieved on: April 1st, 2012. Adapted.
Provas
Questão presente nas seguintes provas
Cadernos
Caderno Container