Questões de Concurso Comentadas para engenheiro de segurança júnior

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Q2286132 Mecânica

Acerca de trabalhos a quente, julgue o próximo item.


Na soldagem por arco elétrico, a zona termicamente afetada (ZTA) é a região mais crítica da união soldada, pois nela o calor é aplicado ao material base e ao metal de adição, levando à fusão e subsequente solidificação do material, com grandes tensões residuais.

Alternativas
Q2286131 Ciências

Acerca de trabalhos a quente, julgue o próximo item.


O processo de jateamento abrasivo aproveita a energia cinética de partículas abrasivas, que são aceleradas por meio de ar comprimido ou de um sistema mecânico e, em seguida, direcionadas à superfície a ser limpa; essas partículas, ao colidirem com a superfície, removem os materiais indesejados via impacto mecânico, fricção e abrasão.

Alternativas
Q2286130 Segurança e Saúde no Trabalho

Em relação à movimentação de cargas e instalações elétricas, julgue o item subsequente.


O uso de cintas de poliéster é recomendado para a movimentação de cargas sensíveis e frágeis, devido à alta resistência do material e ao baixo risco de danos.

Alternativas
Q2286129 Segurança e Saúde no Trabalho

Em relação à movimentação de cargas e instalações elétricas, julgue o item subsequente.


Dispositivos de proteção diferencial residual (DR) são utilizados para detectar e interromper correntes induzidas em circuitos de alta capacitância, cuja impedância e cujo efeito Joule podem levar a queimaduras, choques elétricos e incêndios.

Alternativas
Q2286128 Segurança e Saúde no Trabalho

Julgue o item que se segue, a respeito da operação e da manutenção de caldeiras e vasos de pressão.


Para evitar catástrofes, a inspeção interna de componentes como tubulações, soldas e revestimentos deve ser realizada a cada doze meses de operação, de imediato em caso de falhas estruturais, ou a cada seis meses quando houver sobrecargas.

Alternativas
Q2286126 Segurança e Saúde no Trabalho

Acerca da utilização de sistemas de segurança e do controle de riscos em máquinas, julgue o item a seguir.


Quando sistemas de segurança são utilizados em máquinas e quando há pessoas na zona de perigo, é obrigatório adotar medidas adicionais de proteção coletiva, porém apenas na iminência de risco de acidentes.

Alternativas
Q2286125 Segurança e Saúde no Trabalho

Acerca da utilização de sistemas de segurança e do controle de riscos em máquinas, julgue o item a seguir.


As proteções contra as zonas de perigo podem falhar ou ser ultrapassadas; por isso, a adoção de medidas adicionais de proteção garante segurança extra e evita acidentes graves.

Alternativas
Q2281249 Inglês
Text CB1A2-I

        Oppenheimer’s brief advance into astrophysics began with a 1938 paper about neutron stars, which continued in a 1939 installment that further incorporated the principles of Einstein’s general theory of relativity. He then published a third paper on black holes on September 1st, 1939—but at the time, it was scarcely noticed because this was the very day Germany invaded Poland, launching World War II. Oppenheimer never wrote on the topic again.
        Even if it hadn’t been overshadowed by war, Oppenheimer’s work on neutron stars and black holes “was not understood to be terribly significant at the time,” says Cathryn Carson, a historian of science at the University of California, Berkeley.
        Each paper was written with a different member of the swarm of graduate students that Oppenheimer carefully cultivated. These protégés facilitated his ability to jump between research topics—and ultimately, helped him develop some of his most important contributions to physics.
        Oppenheimer’s climactic third paper, written with his student Hartland Snyder, explores the implications of general relativity on the universe’s most massive stars. Although the physicists needed to include some assumptions to simplify the question, they determined that a large enough star would gravitationally collapse indefinitely—and within a finite amount of time, meaning that the objects we now know as black holes could exist.

Internet: <scientificamerican.com> (adapted)

Based on the vocabulary and linguistic aspects of text CB1A2-I, judge the following item.


Graduate students are people studying for a master’s degree or doctorate.

Alternativas
Q2281248 Inglês
Text CB1A2-I

        Oppenheimer’s brief advance into astrophysics began with a 1938 paper about neutron stars, which continued in a 1939 installment that further incorporated the principles of Einstein’s general theory of relativity. He then published a third paper on black holes on September 1st, 1939—but at the time, it was scarcely noticed because this was the very day Germany invaded Poland, launching World War II. Oppenheimer never wrote on the topic again.
        Even if it hadn’t been overshadowed by war, Oppenheimer’s work on neutron stars and black holes “was not understood to be terribly significant at the time,” says Cathryn Carson, a historian of science at the University of California, Berkeley.
        Each paper was written with a different member of the swarm of graduate students that Oppenheimer carefully cultivated. These protégés facilitated his ability to jump between research topics—and ultimately, helped him develop some of his most important contributions to physics.
        Oppenheimer’s climactic third paper, written with his student Hartland Snyder, explores the implications of general relativity on the universe’s most massive stars. Although the physicists needed to include some assumptions to simplify the question, they determined that a large enough star would gravitationally collapse indefinitely—and within a finite amount of time, meaning that the objects we now know as black holes could exist.

Internet: <scientificamerican.com> (adapted)

Based on the vocabulary and linguistic aspects of text CB1A2-I, judge the following item.


The word “physicists” means “medical doctors”. 

Alternativas
Q2281247 Inglês
Text CB1A2-I

        Oppenheimer’s brief advance into astrophysics began with a 1938 paper about neutron stars, which continued in a 1939 installment that further incorporated the principles of Einstein’s general theory of relativity. He then published a third paper on black holes on September 1st, 1939—but at the time, it was scarcely noticed because this was the very day Germany invaded Poland, launching World War II. Oppenheimer never wrote on the topic again.
        Even if it hadn’t been overshadowed by war, Oppenheimer’s work on neutron stars and black holes “was not understood to be terribly significant at the time,” says Cathryn Carson, a historian of science at the University of California, Berkeley.
        Each paper was written with a different member of the swarm of graduate students that Oppenheimer carefully cultivated. These protégés facilitated his ability to jump between research topics—and ultimately, helped him develop some of his most important contributions to physics.
        Oppenheimer’s climactic third paper, written with his student Hartland Snyder, explores the implications of general relativity on the universe’s most massive stars. Although the physicists needed to include some assumptions to simplify the question, they determined that a large enough star would gravitationally collapse indefinitely—and within a finite amount of time, meaning that the objects we now know as black holes could exist.

Internet: <scientificamerican.com> (adapted)

Based on the vocabulary and linguistic aspects of text CB1A2-I, judge the following item.


The word “installment” (first sentence of the first paragraph) means, in the context of text CB1A2-I, “to make it ready to use”.

Alternativas
Q2281246 Inglês
Text CB1A2-I

        Oppenheimer’s brief advance into astrophysics began with a 1938 paper about neutron stars, which continued in a 1939 installment that further incorporated the principles of Einstein’s general theory of relativity. He then published a third paper on black holes on September 1st, 1939—but at the time, it was scarcely noticed because this was the very day Germany invaded Poland, launching World War II. Oppenheimer never wrote on the topic again.
        Even if it hadn’t been overshadowed by war, Oppenheimer’s work on neutron stars and black holes “was not understood to be terribly significant at the time,” says Cathryn Carson, a historian of science at the University of California, Berkeley.
        Each paper was written with a different member of the swarm of graduate students that Oppenheimer carefully cultivated. These protégés facilitated his ability to jump between research topics—and ultimately, helped him develop some of his most important contributions to physics.
        Oppenheimer’s climactic third paper, written with his student Hartland Snyder, explores the implications of general relativity on the universe’s most massive stars. Although the physicists needed to include some assumptions to simplify the question, they determined that a large enough star would gravitationally collapse indefinitely—and within a finite amount of time, meaning that the objects we now know as black holes could exist.

Internet: <scientificamerican.com> (adapted)

Based on the vocabulary and linguistic aspects of text CB1A2-I, judge the following item.


The word “overshadowed” (first sentence of the second paragraph) means, in the context of text CB1A2-I, “made less noticeable”. 

Alternativas
Q2281245 Inglês
Text CB1A2-I

        Oppenheimer’s brief advance into astrophysics began with a 1938 paper about neutron stars, which continued in a 1939 installment that further incorporated the principles of Einstein’s general theory of relativity. He then published a third paper on black holes on September 1st, 1939—but at the time, it was scarcely noticed because this was the very day Germany invaded Poland, launching World War II. Oppenheimer never wrote on the topic again.
        Even if it hadn’t been overshadowed by war, Oppenheimer’s work on neutron stars and black holes “was not understood to be terribly significant at the time,” says Cathryn Carson, a historian of science at the University of California, Berkeley.
        Each paper was written with a different member of the swarm of graduate students that Oppenheimer carefully cultivated. These protégés facilitated his ability to jump between research topics—and ultimately, helped him develop some of his most important contributions to physics.
        Oppenheimer’s climactic third paper, written with his student Hartland Snyder, explores the implications of general relativity on the universe’s most massive stars. Although the physicists needed to include some assumptions to simplify the question, they determined that a large enough star would gravitationally collapse indefinitely—and within a finite amount of time, meaning that the objects we now know as black holes could exist.

Internet: <scientificamerican.com> (adapted)
Based on the vocabulary and linguistic aspects of text CB1A2-I, judge the following item.
The pronoun “they” (last sentence of the last paragraph) refers to the word “assumptions”.
Alternativas
Q2281244 Inglês
Text CB1A2-I

        Oppenheimer’s brief advance into astrophysics began with a 1938 paper about neutron stars, which continued in a 1939 installment that further incorporated the principles of Einstein’s general theory of relativity. He then published a third paper on black holes on September 1st, 1939—but at the time, it was scarcely noticed because this was the very day Germany invaded Poland, launching World War II. Oppenheimer never wrote on the topic again.
        Even if it hadn’t been overshadowed by war, Oppenheimer’s work on neutron stars and black holes “was not understood to be terribly significant at the time,” says Cathryn Carson, a historian of science at the University of California, Berkeley.
        Each paper was written with a different member of the swarm of graduate students that Oppenheimer carefully cultivated. These protégés facilitated his ability to jump between research topics—and ultimately, helped him develop some of his most important contributions to physics.
        Oppenheimer’s climactic third paper, written with his student Hartland Snyder, explores the implications of general relativity on the universe’s most massive stars. Although the physicists needed to include some assumptions to simplify the question, they determined that a large enough star would gravitationally collapse indefinitely—and within a finite amount of time, meaning that the objects we now know as black holes could exist.

Internet: <scientificamerican.com> (adapted)

Based on text CB1A2-I, judge the following item.


Hartland Snyder helped Oppenheimer write his least relevant paper in physics.

Alternativas
Q2281243 Inglês
Text CB1A2-I

        Oppenheimer’s brief advance into astrophysics began with a 1938 paper about neutron stars, which continued in a 1939 installment that further incorporated the principles of Einstein’s general theory of relativity. He then published a third paper on black holes on September 1st, 1939—but at the time, it was scarcely noticed because this was the very day Germany invaded Poland, launching World War II. Oppenheimer never wrote on the topic again.
        Even if it hadn’t been overshadowed by war, Oppenheimer’s work on neutron stars and black holes “was not understood to be terribly significant at the time,” says Cathryn Carson, a historian of science at the University of California, Berkeley.
        Each paper was written with a different member of the swarm of graduate students that Oppenheimer carefully cultivated. These protégés facilitated his ability to jump between research topics—and ultimately, helped him develop some of his most important contributions to physics.
        Oppenheimer’s climactic third paper, written with his student Hartland Snyder, explores the implications of general relativity on the universe’s most massive stars. Although the physicists needed to include some assumptions to simplify the question, they determined that a large enough star would gravitationally collapse indefinitely—and within a finite amount of time, meaning that the objects we now know as black holes could exist.

Internet: <scientificamerican.com> (adapted)

Based on text CB1A2-I, judge the following item.


The word “war” (first sentence of the second paragraph) refers to any war.

Alternativas
Q2281242 Inglês
Text CB1A2-I

        Oppenheimer’s brief advance into astrophysics began with a 1938 paper about neutron stars, which continued in a 1939 installment that further incorporated the principles of Einstein’s general theory of relativity. He then published a third paper on black holes on September 1st, 1939—but at the time, it was scarcely noticed because this was the very day Germany invaded Poland, launching World War II. Oppenheimer never wrote on the topic again.
        Even if it hadn’t been overshadowed by war, Oppenheimer’s work on neutron stars and black holes “was not understood to be terribly significant at the time,” says Cathryn Carson, a historian of science at the University of California, Berkeley.
        Each paper was written with a different member of the swarm of graduate students that Oppenheimer carefully cultivated. These protégés facilitated his ability to jump between research topics—and ultimately, helped him develop some of his most important contributions to physics.
        Oppenheimer’s climactic third paper, written with his student Hartland Snyder, explores the implications of general relativity on the universe’s most massive stars. Although the physicists needed to include some assumptions to simplify the question, they determined that a large enough star would gravitationally collapse indefinitely—and within a finite amount of time, meaning that the objects we now know as black holes could exist.

Internet: <scientificamerican.com> (adapted)

Based on text CB1A2-I, judge the following item.


With the help of his students, Oppenheimer could easily shift from one research topic to another.

Alternativas
Q2281241 Inglês
Text CB1A2-I

        Oppenheimer’s brief advance into astrophysics began with a 1938 paper about neutron stars, which continued in a 1939 installment that further incorporated the principles of Einstein’s general theory of relativity. He then published a third paper on black holes on September 1st, 1939—but at the time, it was scarcely noticed because this was the very day Germany invaded Poland, launching World War II. Oppenheimer never wrote on the topic again.
        Even if it hadn’t been overshadowed by war, Oppenheimer’s work on neutron stars and black holes “was not understood to be terribly significant at the time,” says Cathryn Carson, a historian of science at the University of California, Berkeley.
        Each paper was written with a different member of the swarm of graduate students that Oppenheimer carefully cultivated. These protégés facilitated his ability to jump between research topics—and ultimately, helped him develop some of his most important contributions to physics.
        Oppenheimer’s climactic third paper, written with his student Hartland Snyder, explores the implications of general relativity on the universe’s most massive stars. Although the physicists needed to include some assumptions to simplify the question, they determined that a large enough star would gravitationally collapse indefinitely—and within a finite amount of time, meaning that the objects we now know as black holes could exist.

Internet: <scientificamerican.com> (adapted)

Based on text CB1A2-I, judge the following item.


According to Cathryn Carson, Oppenheimer’s work on neutron stars and black holes was meaningless at the time it was developed.

Alternativas
Q2281240 Inglês
Text CB1A2-I

        Oppenheimer’s brief advance into astrophysics began with a 1938 paper about neutron stars, which continued in a 1939 installment that further incorporated the principles of Einstein’s general theory of relativity. He then published a third paper on black holes on September 1st, 1939—but at the time, it was scarcely noticed because this was the very day Germany invaded Poland, launching World War II. Oppenheimer never wrote on the topic again.
        Even if it hadn’t been overshadowed by war, Oppenheimer’s work on neutron stars and black holes “was not understood to be terribly significant at the time,” says Cathryn Carson, a historian of science at the University of California, Berkeley.
        Each paper was written with a different member of the swarm of graduate students that Oppenheimer carefully cultivated. These protégés facilitated his ability to jump between research topics—and ultimately, helped him develop some of his most important contributions to physics.
        Oppenheimer’s climactic third paper, written with his student Hartland Snyder, explores the implications of general relativity on the universe’s most massive stars. Although the physicists needed to include some assumptions to simplify the question, they determined that a large enough star would gravitationally collapse indefinitely—and within a finite amount of time, meaning that the objects we now know as black holes could exist.

Internet: <scientificamerican.com> (adapted)

Based on text CB1A2-I, judge the following item.


Oppenheimer’s paper on black holes received little attention at the time it was published.

Alternativas
Q2281239 Português
Texto CB1A1-I

        Os testes econométricos realizados para o estado de São Paulo mostram que a disponibilidade de gás natural teve importância na localização industrial. Tal resultado é corroborado pela avaliação de que seu efeito impacta mais a indústria consumidora intensiva do que a média das indústrias.
        Por outro lado, esta análise também está limitada pelo conjunto de variáveis disponíveis para controle. Embora tenham sido incluídas no modelo variáveis fundamentais no processo de localização, é inevitável que haja um grupo de variáveis omitidas. Citam-se, por exemplo, a relação entre os preços dos energéticos, as questões tributárias, a proximidade com pontos de exportação e com outras fontes de insumos importantes.
        Essa constatação, por sua vez, não diminui a relevância dos testes produzidos. Ao contrário, se se pode provar que a malha de gasodutos do país serve como fator de atração de atividade econômica, pode-se apontar mais uma possibilidade de atuação do setor público no intuito de garantir um processo de desconcentração econômica mais efetiva no país. A construção de uma malha mais eficiente e abrangente surge, portanto, como um importante desafio a ser considerado no planejamento energético nacional.

Edgar Antonio Perlotti et al. Concentração espacial da indústria de São Paulo: evidências sobre o papel da disponibilidade de gás natural. Energia e ambiente. 30 (87), maio-ago./2016 (com adaptações).

Considerando as relações de concordância verbal estabelecidas no texto CB1A1-I, julgue o próximo item.


A forma verbal que inicia o último período do segundo parágrafo está na voz passiva pronominal e sua flexão na terceira pessoa do plural justifica-se pelo fato de o sujeito ser composto.

Alternativas
Q2281238 Português
Texto CB1A1-I

        Os testes econométricos realizados para o estado de São Paulo mostram que a disponibilidade de gás natural teve importância na localização industrial. Tal resultado é corroborado pela avaliação de que seu efeito impacta mais a indústria consumidora intensiva do que a média das indústrias.
        Por outro lado, esta análise também está limitada pelo conjunto de variáveis disponíveis para controle. Embora tenham sido incluídas no modelo variáveis fundamentais no processo de localização, é inevitável que haja um grupo de variáveis omitidas. Citam-se, por exemplo, a relação entre os preços dos energéticos, as questões tributárias, a proximidade com pontos de exportação e com outras fontes de insumos importantes.
        Essa constatação, por sua vez, não diminui a relevância dos testes produzidos. Ao contrário, se se pode provar que a malha de gasodutos do país serve como fator de atração de atividade econômica, pode-se apontar mais uma possibilidade de atuação do setor público no intuito de garantir um processo de desconcentração econômica mais efetiva no país. A construção de uma malha mais eficiente e abrangente surge, portanto, como um importante desafio a ser considerado no planejamento energético nacional.

Edgar Antonio Perlotti et al. Concentração espacial da indústria de São Paulo: evidências sobre o papel da disponibilidade de gás natural. Energia e ambiente. 30 (87), maio-ago./2016 (com adaptações).

Considerando as relações de concordância verbal estabelecidas no texto CB1A1-I, julgue o próximo item.


Estaria mantida a correção gramatical do texto caso a forma verbal “serve” (segundo período do último parágrafo) fosse flexionada na terceira pessoa do plural — servem —, dada a possibilidade de concordância verbal com o termo mais próximo, “gasodutos”.

Alternativas
Q2281237 Português
Texto CB1A1-I

        Os testes econométricos realizados para o estado de São Paulo mostram que a disponibilidade de gás natural teve importância na localização industrial. Tal resultado é corroborado pela avaliação de que seu efeito impacta mais a indústria consumidora intensiva do que a média das indústrias.
        Por outro lado, esta análise também está limitada pelo conjunto de variáveis disponíveis para controle. Embora tenham sido incluídas no modelo variáveis fundamentais no processo de localização, é inevitável que haja um grupo de variáveis omitidas. Citam-se, por exemplo, a relação entre os preços dos energéticos, as questões tributárias, a proximidade com pontos de exportação e com outras fontes de insumos importantes.
        Essa constatação, por sua vez, não diminui a relevância dos testes produzidos. Ao contrário, se se pode provar que a malha de gasodutos do país serve como fator de atração de atividade econômica, pode-se apontar mais uma possibilidade de atuação do setor público no intuito de garantir um processo de desconcentração econômica mais efetiva no país. A construção de uma malha mais eficiente e abrangente surge, portanto, como um importante desafio a ser considerado no planejamento energético nacional.

Edgar Antonio Perlotti et al. Concentração espacial da indústria de São Paulo: evidências sobre o papel da disponibilidade de gás natural. Energia e ambiente. 30 (87), maio-ago./2016 (com adaptações).

Considerando as relações de concordância verbal estabelecidas no texto CB1A1-I, julgue o próximo item.


No segundo período do segundo parágrafo, a supressão do segmento “um grupo de” ensejaria que a forma verbal “haja” fosse flexionada no plural — hajam —, para a adequada concordância com o termo “variáveis”. 

Alternativas
Respostas
61: E
62: C
63: C
64: E
65: E
66: E
67: C
68: C
69: E
70: E
71: C
72: E
73: E
74: E
75: C
76: E
77: C
78: C
79: E
80: E