Questões de Concurso Público METRÔ-SP 2014 para Engenheiro Júnior - Mecânica
Foram encontradas 60 questões
Ano: 2014
Banca:
FCC
Órgão:
METRÔ-SP
Provas:
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Administração de Empresas
|
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Ciências Contábeis |
FCC - 2014 - METRÔ-SP - Advogado Júnior |
FCC - 2014 - METRÔ-SP - Engenheiro Júnior - Mecânica |
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Economia |
Q407610
Raciocínio Lógico
Um ramal do Metrô de uma cidade possui 5 estações, após a estação inicial, e que são nomeadas por Água, Brisa, Vento, Chuva e Terra. Essas estações não estão localizadas no ramal, necessariamente, na ordem dada. Considerando o sentido do trem que parte da estação inicial, sabe-se que:
I. os passageiros que descem na estação Chuva, descem na terceira estação após os passageiros que descem na estação Vento.
II. os passageiros que descem na estação Brisa, descem antes do que os passageiros que descem na estação Água e também os que descem na estação Vento.
III. a estação Terra não é a estação central das cinco estações.
Dos 500 passageiros que embarcaram no trem na estação inicial, 35% desceram em Água, 12% desceram em Brisa, 32% desceram em Chuva, 10% desceram em Terra e 11% desceram em Vento. Assim, pode-se concluir corretamente que, dos 500 passageiros que embarcaram no trem na estação inicial, ainda restam no trem, após a estação Água, um número de passageiros igual a :
I. os passageiros que descem na estação Chuva, descem na terceira estação após os passageiros que descem na estação Vento.
II. os passageiros que descem na estação Brisa, descem antes do que os passageiros que descem na estação Água e também os que descem na estação Vento.
III. a estação Terra não é a estação central das cinco estações.
Dos 500 passageiros que embarcaram no trem na estação inicial, 35% desceram em Água, 12% desceram em Brisa, 32% desceram em Chuva, 10% desceram em Terra e 11% desceram em Vento. Assim, pode-se concluir corretamente que, dos 500 passageiros que embarcaram no trem na estação inicial, ainda restam no trem, após a estação Água, um número de passageiros igual a :
Ano: 2014
Banca:
FCC
Órgão:
METRÔ-SP
Provas:
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Administração de Empresas
|
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Ciências Contábeis |
FCC - 2014 - METRÔ-SP - Advogado Júnior |
FCC - 2014 - METRÔ-SP - Engenheiro Júnior - Mecânica |
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Economia |
Q407611
Raciocínio Lógico
Um rico empresário resolveu presentear seus bisnetos com uma grande fortuna. A fortuna deve ser repartida a cada bisneto em partes inversamente proporcionais à idade de cada um. Sabe-se que as idades dos bisnetos correspondem exatamente aos divisores de 18, exceto o menor dos divisores, e que não há bisnetos que sejam gêmeos, trigêmeos etc. Dividindo a fortuna dessa maneira, coube ao último bisneto, o mais novo,
Ano: 2014
Banca:
FCC
Órgão:
METRÔ-SP
Provas:
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Administração de Empresas
|
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Ciências Contábeis |
FCC - 2014 - METRÔ-SP - Advogado Júnior |
FCC - 2014 - METRÔ-SP - Engenheiro Júnior - Mecânica |
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Economia |
Q407612
Raciocínio Lógico
A loja A pretende reduzir em 20% o preço P de determinado produto. A loja B vende o mesmo produto pela metade do preço P e pretende aumentar o seu preço de tal forma que, após o aumento, seu novo preço ainda seja 10% a menos do que o preço já reduzido a ser praticado pela loja A. O aumento que a loja B deve realizar é de :
Ano: 2014
Banca:
FCC
Órgão:
METRÔ-SP
Provas:
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Administração de Empresas
|
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Ciências Contábeis |
FCC - 2014 - METRÔ-SP - Advogado Júnior |
FCC - 2014 - METRÔ-SP - Engenheiro Júnior - Mecânica |
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Economia |
Q407613
Raciocínio Lógico
Subiram no trem vazio, na estação inicial, x pessoas e nesse dia ninguém mais entrou nesse trem. Na 1ª estação desembarcaram 2/3 dos passageiros que estavam no trem e ainda mais 10 passageiros. Na 2ª estação desembarcaram 2/3 dos passageiros que ainda estavam no trem e mais 10 pessoas. Exatamente assim aconteceu também nas 3ª , 4ª e 5ª estações. Da 5ª estação em diante, o trem trafegou com apenas 1 passageiro. Desta maneira, o número de passageiros que desembarcaram, ao todo, nas três primeimeiras estações, é igual a :
Ano: 2014
Banca:
FCC
Órgão:
METRÔ-SP
Provas:
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Administração de Empresas
|
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Ciências Contábeis |
FCC - 2014 - METRÔ-SP - Advogado Júnior |
FCC - 2014 - METRÔ-SP - Engenheiro Júnior - Mecânica |
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Economia |
Q407614
Raciocínio Lógico
Um caminhante do deserto possui, no ponto A, 20 pacotes de suprimentos diários. No deserto, a cada 30 Km, em linha reta, há um abrigo no qual o viajante pode dormir para seguir viagem no dia seguinte e também para guardar pacotes de suprimentos. O caminhante percorre 30 Km por dia e consegue transportar, no máximo, 4 pacotes de suprimentos, sendo que, desses 4 pacotes, um é consumido no caminho entre dois abrigos consecutivos. Consumindo sempre um pacote por dia de viagem, a maior distância do ponto A, em Km, que esse caminhante conseguirá atingir é igual a :
Ano: 2014
Banca:
FCC
Órgão:
METRÔ-SP
Provas:
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Administração de Empresas
|
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Ciências Contábeis |
FCC - 2014 - METRÔ-SP - Advogado Júnior |
FCC - 2014 - METRÔ-SP - Engenheiro Júnior - Mecânica |
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Economia |
Q407615
Inglês
Texto associado
San Francisco Subway TBMs Dig Deep to Overcome Tunnel Challenges
September 4, 2013
By Greg Aragon
Tunneling 100 ft below a busy city with varying substructure is a delicate job, especially when the work comes .....A.... 8 ft of existing tunnels. Such is the case on San Francisco's new $1.5-billion Central Subway Project, which began major subterranean excavation last month.
"The tunnels pass through both soft ground and Franciscan formation, which is heterogeneous rock that is not predictable except in its unpredictability," says Sarah Wilson, a San Francisco Municipal Transportation Agency (SFMTA) resident engineer.
While underground conditions will be tricky, the project's twin earth-pressure-balance tunnel-boring machines will be able to adjust their blades and cut through any sand, dirt or rock, says Wilson. The TBMs, dubbed Mom Chung and Big Alma, are each 350 ft long and weigh 750 tons.
Mom Chung was first out of the 450-ft-long launch box. Over the next 10 months, she will travel north, creating a 1.7-mile-long tunnel. Big Alma will begin digging a southbound parallel tunnel later this month.
The tunnels are the main component of the Central Subway Project, which is extending the Muni Metro T Third Line through one of the most densely populated neighborhoods in the U.S. with three new underground stations and one at street level. Work on the line is scheduled to wrap up in 2019.
To prevent and control ground and adjacent structure settlement, the team will use compensation grouting, in which a horizontal array of grout pipes is installed into a shaft drilled down next to the tunnel alignment. "We are basically preconditioning the ground and making it homogeneous so that there are no surprises for the crossing," says John Funghi, SFMTA program director.
September 4, 2013
By Greg Aragon
Tunneling 100 ft below a busy city with varying substructure is a delicate job, especially when the work comes .....A.... 8 ft of existing tunnels. Such is the case on San Francisco's new $1.5-billion Central Subway Project, which began major subterranean excavation last month.
"The tunnels pass through both soft ground and Franciscan formation, which is heterogeneous rock that is not predictable except in its unpredictability," says Sarah Wilson, a San Francisco Municipal Transportation Agency (SFMTA) resident engineer.
While underground conditions will be tricky, the project's twin earth-pressure-balance tunnel-boring machines will be able to adjust their blades and cut through any sand, dirt or rock, says Wilson. The TBMs, dubbed Mom Chung and Big Alma, are each 350 ft long and weigh 750 tons.
Mom Chung was first out of the 450-ft-long launch box. Over the next 10 months, she will travel north, creating a 1.7-mile-long tunnel. Big Alma will begin digging a southbound parallel tunnel later this month.
The tunnels are the main component of the Central Subway Project, which is extending the Muni Metro T Third Line through one of the most densely populated neighborhoods in the U.S. with three new underground stations and one at street level. Work on the line is scheduled to wrap up in 2019.
To prevent and control ground and adjacent structure settlement, the team will use compensation grouting, in which a horizontal array of grout pipes is installed into a shaft drilled down next to the tunnel alignment. "We are basically preconditioning the ground and making it homogeneous so that there are no surprises for the crossing," says John Funghi, SFMTA program director.
A palavra que preenche corretamente a lacuna ...A... é :
Ano: 2014
Banca:
FCC
Órgão:
METRÔ-SP
Provas:
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Administração de Empresas
|
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Ciências Contábeis |
FCC - 2014 - METRÔ-SP - Advogado Júnior |
FCC - 2014 - METRÔ-SP - Engenheiro Júnior - Mecânica |
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Economia |
Q407616
Inglês
Texto associado
San Francisco Subway TBMs Dig Deep to Overcome Tunnel Challenges
September 4, 2013
By Greg Aragon
Tunneling 100 ft below a busy city with varying substructure is a delicate job, especially when the work comes .....A.... 8 ft of existing tunnels. Such is the case on San Francisco's new $1.5-billion Central Subway Project, which began major subterranean excavation last month.
"The tunnels pass through both soft ground and Franciscan formation, which is heterogeneous rock that is not predictable except in its unpredictability," says Sarah Wilson, a San Francisco Municipal Transportation Agency (SFMTA) resident engineer.
While underground conditions will be tricky, the project's twin earth-pressure-balance tunnel-boring machines will be able to adjust their blades and cut through any sand, dirt or rock, says Wilson. The TBMs, dubbed Mom Chung and Big Alma, are each 350 ft long and weigh 750 tons.
Mom Chung was first out of the 450-ft-long launch box. Over the next 10 months, she will travel north, creating a 1.7-mile-long tunnel. Big Alma will begin digging a southbound parallel tunnel later this month.
The tunnels are the main component of the Central Subway Project, which is extending the Muni Metro T Third Line through one of the most densely populated neighborhoods in the U.S. with three new underground stations and one at street level. Work on the line is scheduled to wrap up in 2019.
To prevent and control ground and adjacent structure settlement, the team will use compensation grouting, in which a horizontal array of grout pipes is installed into a shaft drilled down next to the tunnel alignment. "We are basically preconditioning the ground and making it homogeneous so that there are no surprises for the crossing," says John Funghi, SFMTA program director.
September 4, 2013
By Greg Aragon
Tunneling 100 ft below a busy city with varying substructure is a delicate job, especially when the work comes .....A.... 8 ft of existing tunnels. Such is the case on San Francisco's new $1.5-billion Central Subway Project, which began major subterranean excavation last month.
"The tunnels pass through both soft ground and Franciscan formation, which is heterogeneous rock that is not predictable except in its unpredictability," says Sarah Wilson, a San Francisco Municipal Transportation Agency (SFMTA) resident engineer.
While underground conditions will be tricky, the project's twin earth-pressure-balance tunnel-boring machines will be able to adjust their blades and cut through any sand, dirt or rock, says Wilson. The TBMs, dubbed Mom Chung and Big Alma, are each 350 ft long and weigh 750 tons.
Mom Chung was first out of the 450-ft-long launch box. Over the next 10 months, she will travel north, creating a 1.7-mile-long tunnel. Big Alma will begin digging a southbound parallel tunnel later this month.
The tunnels are the main component of the Central Subway Project, which is extending the Muni Metro T Third Line through one of the most densely populated neighborhoods in the U.S. with three new underground stations and one at street level. Work on the line is scheduled to wrap up in 2019.
To prevent and control ground and adjacent structure settlement, the team will use compensation grouting, in which a horizontal array of grout pipes is installed into a shaft drilled down next to the tunnel alignment. "We are basically preconditioning the ground and making it homogeneous so that there are no surprises for the crossing," says John Funghi, SFMTA program director.
Segundo Wilson,
Ano: 2014
Banca:
FCC
Órgão:
METRÔ-SP
Provas:
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Administração de Empresas
|
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Ciências Contábeis |
FCC - 2014 - METRÔ-SP - Advogado Júnior |
FCC - 2014 - METRÔ-SP - Engenheiro Júnior - Mecânica |
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Economia |
Q407617
Inglês
Texto associado
San Francisco Subway TBMs Dig Deep to Overcome Tunnel Challenges
September 4, 2013
By Greg Aragon
Tunneling 100 ft below a busy city with varying substructure is a delicate job, especially when the work comes .....A.... 8 ft of existing tunnels. Such is the case on San Francisco's new $1.5-billion Central Subway Project, which began major subterranean excavation last month.
"The tunnels pass through both soft ground and Franciscan formation, which is heterogeneous rock that is not predictable except in its unpredictability," says Sarah Wilson, a San Francisco Municipal Transportation Agency (SFMTA) resident engineer.
While underground conditions will be tricky, the project's twin earth-pressure-balance tunnel-boring machines will be able to adjust their blades and cut through any sand, dirt or rock, says Wilson. The TBMs, dubbed Mom Chung and Big Alma, are each 350 ft long and weigh 750 tons.
Mom Chung was first out of the 450-ft-long launch box. Over the next 10 months, she will travel north, creating a 1.7-mile-long tunnel. Big Alma will begin digging a southbound parallel tunnel later this month.
The tunnels are the main component of the Central Subway Project, which is extending the Muni Metro T Third Line through one of the most densely populated neighborhoods in the U.S. with three new underground stations and one at street level. Work on the line is scheduled to wrap up in 2019.
To prevent and control ground and adjacent structure settlement, the team will use compensation grouting, in which a horizontal array of grout pipes is installed into a shaft drilled down next to the tunnel alignment. "We are basically preconditioning the ground and making it homogeneous so that there are no surprises for the crossing," says John Funghi, SFMTA program director.
September 4, 2013
By Greg Aragon
Tunneling 100 ft below a busy city with varying substructure is a delicate job, especially when the work comes .....A.... 8 ft of existing tunnels. Such is the case on San Francisco's new $1.5-billion Central Subway Project, which began major subterranean excavation last month.
"The tunnels pass through both soft ground and Franciscan formation, which is heterogeneous rock that is not predictable except in its unpredictability," says Sarah Wilson, a San Francisco Municipal Transportation Agency (SFMTA) resident engineer.
While underground conditions will be tricky, the project's twin earth-pressure-balance tunnel-boring machines will be able to adjust their blades and cut through any sand, dirt or rock, says Wilson. The TBMs, dubbed Mom Chung and Big Alma, are each 350 ft long and weigh 750 tons.
Mom Chung was first out of the 450-ft-long launch box. Over the next 10 months, she will travel north, creating a 1.7-mile-long tunnel. Big Alma will begin digging a southbound parallel tunnel later this month.
The tunnels are the main component of the Central Subway Project, which is extending the Muni Metro T Third Line through one of the most densely populated neighborhoods in the U.S. with three new underground stations and one at street level. Work on the line is scheduled to wrap up in 2019.
To prevent and control ground and adjacent structure settlement, the team will use compensation grouting, in which a horizontal array of grout pipes is installed into a shaft drilled down next to the tunnel alignment. "We are basically preconditioning the ground and making it homogeneous so that there are no surprises for the crossing," says John Funghi, SFMTA program director.
Segundo o texto,
Ano: 2014
Banca:
FCC
Órgão:
METRÔ-SP
Provas:
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Administração de Empresas
|
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Ciências Contábeis |
FCC - 2014 - METRÔ-SP - Advogado Júnior |
FCC - 2014 - METRÔ-SP - Engenheiro Júnior - Mecânica |
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Economia |
Q407618
Inglês
Texto associado
Metro releases preliminary findings of investigation into overnight construction accident in Red Line work zone
News release issued at 3:27 pm, October 6, 2013.
The investigation into the cause of a fatal overnight construction accident on the Red Line in Washington, D.C. is ....B.... . The investigation team, led by Metro's Chief Safety Officer, has authorized the release of the following facts and preliminary findings:
The incident occurred shortly after midnight, Sunday, October 6, 2013, in a work zone on the outbound (Glenmont direction) track between Union Station and Judiciary Square.
Contractors and WMATA employees were performing rail renewal, a process that involves removing old sections of rail, installing new sections of rail and related activity such as welding and grinding.
At approximately 12:03 a.m., there was a fire and loud noise that originated near heavy track equipment used to weld rail sections together into a continuous strip.
The fire and loud noise originated approximately 70 to 80 feet from the injured workers. The root cause of the fire/noise has not yet been determined. It is not yet known if there was a fluid leak or another mechanical issue.
The fire was extinguished by workers using a handheld fire extinguisher.
The incident caused a 40-foot section of rail to move, striking three workers (two WMATA employees and a contractor). It is not yet known what caused the piece of rail to move.
The two WMATA employees - one track worker and one supervisor - suffered serious but non-life-threatening injuries from being struck by the piece of rail. They were transported to local hospitals.
The contractor, an employee of Holland Co., was fatally injured as a result of being struck by the piece of rail.
News release issued at 3:27 pm, October 6, 2013.
The investigation into the cause of a fatal overnight construction accident on the Red Line in Washington, D.C. is ....B.... . The investigation team, led by Metro's Chief Safety Officer, has authorized the release of the following facts and preliminary findings:
The incident occurred shortly after midnight, Sunday, October 6, 2013, in a work zone on the outbound (Glenmont direction) track between Union Station and Judiciary Square.
Contractors and WMATA employees were performing rail renewal, a process that involves removing old sections of rail, installing new sections of rail and related activity such as welding and grinding.
At approximately 12:03 a.m., there was a fire and loud noise that originated near heavy track equipment used to weld rail sections together into a continuous strip.
The fire and loud noise originated approximately 70 to 80 feet from the injured workers. The root cause of the fire/noise has not yet been determined. It is not yet known if there was a fluid leak or another mechanical issue.
The fire was extinguished by workers using a handheld fire extinguisher.
The incident caused a 40-foot section of rail to move, striking three workers (two WMATA employees and a contractor). It is not yet known what caused the piece of rail to move.
The two WMATA employees - one track worker and one supervisor - suffered serious but non-life-threatening injuries from being struck by the piece of rail. They were transported to local hospitals.
The contractor, an employee of Holland Co., was fatally injured as a result of being struck by the piece of rail.
Dentro do contexto, a palavra que preenche corretamente a lacuna ...B... é
Ano: 2014
Banca:
FCC
Órgão:
METRÔ-SP
Provas:
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Administração de Empresas
|
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Ciências Contábeis |
FCC - 2014 - METRÔ-SP - Advogado Júnior |
FCC - 2014 - METRÔ-SP - Engenheiro Júnior - Mecânica |
FCC - 2014 - METRÔ-SP - Analista Desenvolvimento Gestão Júnior - Economia |
Q407619
Inglês
Texto associado
Metro releases preliminary findings of investigation into overnight construction accident in Red Line work zone
News release issued at 3:27 pm, October 6, 2013.
The investigation into the cause of a fatal overnight construction accident on the Red Line in Washington, D.C. is ....B.... . The investigation team, led by Metro's Chief Safety Officer, has authorized the release of the following facts and preliminary findings:
The incident occurred shortly after midnight, Sunday, October 6, 2013, in a work zone on the outbound (Glenmont direction) track between Union Station and Judiciary Square.
Contractors and WMATA employees were performing rail renewal, a process that involves removing old sections of rail, installing new sections of rail and related activity such as welding and grinding.
At approximately 12:03 a.m., there was a fire and loud noise that originated near heavy track equipment used to weld rail sections together into a continuous strip.
The fire and loud noise originated approximately 70 to 80 feet from the injured workers. The root cause of the fire/noise has not yet been determined. It is not yet known if there was a fluid leak or another mechanical issue.
The fire was extinguished by workers using a handheld fire extinguisher.
The incident caused a 40-foot section of rail to move, striking three workers (two WMATA employees and a contractor). It is not yet known what caused the piece of rail to move.
The two WMATA employees - one track worker and one supervisor - suffered serious but non-life-threatening injuries from being struck by the piece of rail. They were transported to local hospitals.
The contractor, an employee of Holland Co., was fatally injured as a result of being struck by the piece of rail.
News release issued at 3:27 pm, October 6, 2013.
The investigation into the cause of a fatal overnight construction accident on the Red Line in Washington, D.C. is ....B.... . The investigation team, led by Metro's Chief Safety Officer, has authorized the release of the following facts and preliminary findings:
The incident occurred shortly after midnight, Sunday, October 6, 2013, in a work zone on the outbound (Glenmont direction) track between Union Station and Judiciary Square.
Contractors and WMATA employees were performing rail renewal, a process that involves removing old sections of rail, installing new sections of rail and related activity such as welding and grinding.
At approximately 12:03 a.m., there was a fire and loud noise that originated near heavy track equipment used to weld rail sections together into a continuous strip.
The fire and loud noise originated approximately 70 to 80 feet from the injured workers. The root cause of the fire/noise has not yet been determined. It is not yet known if there was a fluid leak or another mechanical issue.
The fire was extinguished by workers using a handheld fire extinguisher.
The incident caused a 40-foot section of rail to move, striking three workers (two WMATA employees and a contractor). It is not yet known what caused the piece of rail to move.
The two WMATA employees - one track worker and one supervisor - suffered serious but non-life-threatening injuries from being struck by the piece of rail. They were transported to local hospitals.
The contractor, an employee of Holland Co., was fatally injured as a result of being struck by the piece of rail.
Segundo o texto,
Q420701
Mecânica
O momento de inércia polar e o módulo de resistência polar em relação ao centro geométrico de um círculo são dados, respectivamente, por πd4/32 e πd3/16 , sendo d, o diâmetro do círculo. Já, as mesmas grandezas para um quadrado de lado l são dadas, respectivamente, por l4 /6 e
Q420702
Mecânica
A barra da figura abaixo, apoiada num único ponto que não lhe permite rotação, está submetida a momentos de torção de mesma intensidade e mesmo sentido nas duas extremidades.
A forma do diagrama de momentos de torção é representada pela figura:
A forma do diagrama de momentos de torção é representada pela figura:
Q420703
Mecânica
Atenção: Considere o enunciado abaixo para responder à questão.
Um trecho da barra da figura abaixo está submetido a uma carga uniformemente distribuída.
A reação vertical no apoio B é
Um trecho da barra da figura abaixo está submetido a uma carga uniformemente distribuída.
A reação vertical no apoio B é
Q420704
Mecânica
Atenção: Considere o enunciado abaixo para responder à questão.
Um trecho da barra da figura abaixo está submetido a uma carga uniformemente distribuída.
No diagrama de momentos fletores desse carregamento, os trechos AC e CB são, respectivamente,
Um trecho da barra da figura abaixo está submetido a uma carga uniformemente distribuída.
No diagrama de momentos fletores desse carregamento, os trechos AC e CB são, respectivamente,
Q420705
Mecânica
O efeito desoxidante e controlador do tamanho de grão, formando carbonetos estáveis e melhorando a temperabilidade dos aços para ferramentas, se dá, principalmente, pela presença do elemento químico
Q420706
Mecânica
Observe o diagrama esquemático de transformação apresentado abaixo.
Ele refere-se ao tratamento térmico denominado martêmpera,
Ele refere-se ao tratamento térmico denominado martêmpera,
Q420707
Mecânica
As figuras I e II mostram, respectivamente, o aspecto da morfologia dos grãos de um aço antes e depois da recristalização.
Trata-se, então, de um aço
Trata-se, então, de um aço
Q420708
Mecânica
A figura mostra uma junta fixada por quatro rebites iguais com carregamento excêntrico.
l = 150 mm
dp = 50 mm
P = 500 N
dr = 10 mm
Considerando que a carga de cisalhamento seja igualmente distribuída pelos rebites, o mais solicitado sofre uma tensão de
l = 150 mm
dp = 50 mm
P = 500 N
dr = 10 mm
Considerando que a carga de cisalhamento seja igualmente distribuída pelos rebites, o mais solicitado sofre uma tensão de
Q420709
Mecânica
Uma engrenagem cilíndrica com dentes helicoidais apresenta as seguintes características geométricas:
d - diâmetro primitivo
α - ângulo de pressão normal
ß - ângulo de hélice
Conhecido o torque T aplicado na engrenagem, a força axial é determinada por
d - diâmetro primitivo
α - ângulo de pressão normal
ß - ângulo de hélice
Conhecido o torque T aplicado na engrenagem, a força axial é determinada por
Q420710
Mecânica
Considere:
Nos ajustes adotados entre: chaveta x rasgo do cubo e chaveta × rasgo do eixo têm-se, respectivamente, os ajustes
Nos ajustes adotados entre: chaveta x rasgo do cubo e chaveta × rasgo do eixo têm-se, respectivamente, os ajustes
Conheça nossos planos