Questões de Concurso Militar EEAR 2025 para Sargento - CFS - Código 83
Foram encontradas 96 questões
A figura a seguir representa uma lâmina de faces paralelas, de espessura 6 cm, que é constituída de um material de índice de refração igual a √2 . Um raio de luz que se propaga no ar, incide na lâmina formando um ângulo de 45° com a normal. Assinale a alternativa que indica o valor, aproximado, em cm, do desvio lateral (d) sofrido pelo raio de luz incidente.
Adote os valores sen 45º = √2/2 , sen 15°= 0,26, cos 30°= 0,87 e índice de refração do ar = 1.
Em relação aos fenômenos elétricos, marque V para verdadeiro ou F para falso. Em seguida, assinale a alternativa com a sequência correta.
( ) Na corrente contínua (CC), o fluxo de cargas elétricas ocorre em um único sentido. Esse tipo de corrente é produzido por pilhas e células fotovoltaicas. O sentido da corrente contínua real é dado pelo sentido do fluxo dos portadores das cargas negativas.
( ) A corrente alternada (CA) é um fluxo oscilante de cargas elétricas que ora se movimenta em um sentido, ora em outro. Esse tipo de corrente é produzido por baterias e hidroelétricas. O sentido da corrente alternada real é dado pelo sentido do fluxo dos portadores das cargas positivas.
( ) O fenômeno de emissão de luz que ocorre quando uma corrente elétrica passa através de um gás rarefeito é conhecido como efeito térmico.
( ) Para medir a tensão aplicada aos terminais de um resistor, um voltímetro deve ser inserido a este de forma paralela. Além disso, para não influenciar no circuito medido, o voltímetro deve possuir a maior resistência interna possível, fazendo com que a corrente que o atravessa seja insignificante.
Um corpo de massa 50 kg parte do repouso, no instante t = 10 s, sob a ação de uma força constante, paralela ao movimento. Assinale a alternativa que apresenta a energia cinética do corpo, em joule, quando esse corpo adquire a velocidade de 10 m/s.
Os conhecimentos da óptica estão presentes em diversas áreas da nossa vida, exemplos simples disso estão nas montadoras automobilísticas que ao projetarem seus veículos inserem lentes convexas no espelho retrovisor externo dos carros, nos microscópios eletrônicos responsáveis por caracterizar materiais, nas lentes de aumento utilizadas por oculistas para corrigir a visão, etc. Dessa forma, assinale a alternativa que indica corretamente a utilização de elementos e objetos ópticos.
Um fio condutor retilíneo e homogêneo, que possuí 20 cm de comprimento e 10 g de massa, está apoiado horizontalmente sobre uma mesa. Uma mola ideal e de massa desprezível, inicialmente em repouso (condição de equilíbrio), está conectada exatamente no meio deste condutor, como mostrado na figura A. No instante em que uma corrente elétrica (i) de 4 A começa a circular pelo fio, o apoio da mesa é retirado e ele fica suspenso horizontalmente por meio da mola, como mostrado na figura B. Assinale a alternativa que completa corretamente as lacunas da frase abaixo. Adote a intensidade da aceleração da gravidade no local igual a 10 m/s2 , a constante da mola k igual a 10 N/m, a resistência elétrica do fio igual a zero e a ação da gravidade sobre o sistema.
Sabendo que o fio está inserido em um campo magnético (B) perpendicular e uniforme de 0,5 T, pode‐se concluir, corretamente, que após a corrente elétrica começar a circular pelo fio condutor, a força magnética Fm estará dirigida verticalmente para _______ e a mola sofrerá uma deformação igual a ______ cm.
As ondas estão associadas aos movimentos periódicos e podem ser classificadas quanto à natureza, direção de propagação e direção de vibração em diferentes meios de propagação. Com relação às ondas, avalie as seguintes afirmações.
I‐ As ondas mecânicas podem propagar‐se em diferentes meios materiais, inclusive no vácuo, sendo ondas bidimensionais.
II‐ As ondas mecânicas podem ser transversais e longitudinais dependendo da direção de vibração em relação à direção de propagação da onda.
III‐ As ondas eletromagnéticas não necessitam de um meio material para se propagarem.
IV‐ As ondas unidimensionais são aquelas que se propagam em um plano, como as ondas na superfície de um lago.
Está correto o que se afirma em
Em uma prova de condicionamento físico, um candidato precisa atingir a meta de 2 km de percurso na etapa da corrida em até 12 minutos. A velocidade média de corrida do candidato é de 3 m/s. Assinale a alternativa que apresenta o tempo aproximado, em minutos, para o candidato completar os 2 km de prova, e qual a velocidade aproximada, em m/s, que esse candidato precisa para alcançar 3 km nos mesmos 12 minutos de prova.
Avalie as informações abaixo sobre unidades de medidas em sistemas de grandezas físicas.
I‐ A unidade associada com a grandeza intensidade luminosa é candela (cd).
II‐ A unidade associada com a grandeza quantidade de matéria é metro (m).
III‐ A unidade associada com a grandeza intensidade de corrente elétrica é ampère (A).
IV‐ A unidade associada com a grandeza temperatura termodinâmica é Celsius (C).
Com relação ao Sistema Internacional de unidade (SI), está correto o que se afirma em
No circuito elétrico a seguir, todas as lâmpadas são constituídas por resistências ôhmicas e a fonte e os condutores são ideais. O circuito é alimentado por uma fonte ideal de 20 V e as lâmpadas possuem resistências ôhmicas, dadas por RL1 = 0,4 Ω, RL2 = 4 Ω, RL3 = RL4 = RL5 = 12 Ω e RL6 = 1 Ω. Após um determinado tempo, a lâmpada L5 queima. Assinale a alternativa que indica o valor da nova intensidade da corrente elétrica total fornecida pela fonte, em ampère, que percorre o circuito e o que ocorre com a potência total do circuito após a lâmpada L5 queimar.
Com relação ao estudo das leis físicas da Gravitação Universal, que descrevem o movimento dos corpos celestes e sua regularidade, complete as lacunas a seguir e em seguida assinale a alternativa com a sequência correta.
Adote G = 6,67 . 10‐11N.m2 /kg2 .
I‐ O módulo da força de atração gravitacional entre dois corpos de massas iguais a 0,5 kg, separados a uma distância de 0,5 m, é ___________.
II‐ O ___________________ é a região do espaço na qual é exercida uma força sobre um corpo, cuja natureza depende da causa que origina essa força ou interação.
Durante um voo, o piloto do avião detecta uma perturbação na forma de uma onda. Ele observa em seu equipamento que a onda gerada por um motor possui uma frequência de 7200 rpm. O gerador dessa onda transversal observada, tem uma representação gráfica conforme a figura a seguir.
Assinale a alternativa que indica respectivamente o comprimento de onda (λ) em cm, a amplitude (A), em mm, e a velocidade de propagação (v), em cm/s, dessa onda.
A corda de um instrumento musical realiza 15 oscilações completas a cada minuto. Assinale a alternativa que indica corretamente a frequência (ƒ), em Hz, e o período (T), em s, das oscilações.
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Earthquake levels city of Antakya in southern Turkey
The Turkish city of Antakya, one of the hardest‐hit towns in the earthquake zone, has been nearly destroyed by the massive 7.8 quake that struck on 6th February. Tall apartment buildings were flattened, trapping residents who were sleeping when the quake struck in the early morning hours. Thousands are __________ to be buried in their homes. Most of the city was heavily damaged and rescuers have been working around the clock to pull survivors from under the rubble, racing against time in cold weather. Many residents were left homeless and had to spend nights outdoors, burning debris to keep warm as overnight temperatures dropped below freezing. Workers pulled a man in his 30s out of the ruins as a jubilant crowd burst into cheers and tears. Not long after, they found an elderly woman. Then, a 10‐ year‐old girl was also rescued: the child was under the rubble for 90 hours. These moments of hope among the devastation keep them going as darkness falls. More than 80 hours after the quake, rescuers using pails along with other equipment, found a man and his mother, and pulled them out alive. Amid the rubble, a group of rescuers were able to pull out lost family members alive. Even as more help arrives, hope for finding survivors dwindles. Family members wait in the cold to see if their loved ones will be found, alive or dead. There are more than 100 bodies waiting for identification in a makeshift morgue outside the Antakya hospital. More than 600 aftershocks are slowing recovery efforts and make the task more dangerous. Little aid from the government has reached the city and the need is overwhelming. People walk the streets in tears, dazed. There is no place to go. Everything is covered in dust. Even with some 120,000 rescuers across Turkey and Syria now taking part in the effort, the task is daunting. With every passing hour, the likelihood of finding survivors diminishes.
Adapted. Internet: www.abcnews.go.com/International.
Read the sentences and choose the best alternative.
I‐ People were walking the streets because they had no place else to go.
II‐ The earthquake happened as the sun was setting in the Turkish horizon.
III‐ Some buildings collapsed to the ground, burying thousands of potential victims.
IV‐ The task of finding people alive was made easy because there were over 100,000 rescuers.
V‐ Even after the big earthquake had happened, rescuers could still feel smaller vibrations of the Earth’s surface.
According to the text,
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Earthquake levels city of Antakya in southern Turkey
The Turkish city of Antakya, one of the hardest‐hit towns in the earthquake zone, has been nearly destroyed by the massive 7.8 quake that struck on 6th February. Tall apartment buildings were flattened, trapping residents who were sleeping when the quake struck in the early morning hours. Thousands are __________ to be buried in their homes. Most of the city was heavily damaged and rescuers have been working around the clock to pull survivors from under the rubble, racing against time in cold weather. Many residents were left homeless and had to spend nights outdoors, burning debris to keep warm as overnight temperatures dropped below freezing. Workers pulled a man in his 30s out of the ruins as a jubilant crowd burst into cheers and tears. Not long after, they found an elderly woman. Then, a 10‐ year‐old girl was also rescued: the child was under the rubble for 90 hours. These moments of hope among the devastation keep them going as darkness falls. More than 80 hours after the quake, rescuers using pails along with other equipment, found a man and his mother, and pulled them out alive. Amid the rubble, a group of rescuers were able to pull out lost family members alive. Even as more help arrives, hope for finding survivors dwindles. Family members wait in the cold to see if their loved ones will be found, alive or dead. There are more than 100 bodies waiting for identification in a makeshift morgue outside the Antakya hospital. More than 600 aftershocks are slowing recovery efforts and make the task more dangerous. Little aid from the government has reached the city and the need is overwhelming. People walk the streets in tears, dazed. There is no place to go. Everything is covered in dust. Even with some 120,000 rescuers across Turkey and Syria now taking part in the effort, the task is daunting. With every passing hour, the likelihood of finding survivors diminishes.
Adapted. Internet: www.abcnews.go.com/International.
Choose the best alternative to fill in the blank.
Read the text and answer question
Earthquake levels city of Antakya in southern Turkey
The Turkish city of Antakya, one of the hardest‐hit towns in the earthquake zone, has been nearly destroyed by the massive 7.8 quake that struck on 6th February. Tall apartment buildings were flattened, trapping residents who were sleeping when the quake struck in the early morning hours. Thousands are __________ to be buried in their homes. Most of the city was heavily damaged and rescuers have been working around the clock to pull survivors from under the rubble, racing against time in cold weather. Many residents were left homeless and had to spend nights outdoors, burning debris to keep warm as overnight temperatures dropped below freezing. Workers pulled a man in his 30s out of the ruins as a jubilant crowd burst into cheers and tears. Not long after, they found an elderly woman. Then, a 10‐ year‐old girl was also rescued: the child was under the rubble for 90 hours. These moments of hope among the devastation keep them going as darkness falls. More than 80 hours after the quake, rescuers using pails along with other equipment, found a man and his mother, and pulled them out alive. Amid the rubble, a group of rescuers were able to pull out lost family members alive. Even as more help arrives, hope for finding survivors dwindles. Family members wait in the cold to see if their loved ones will be found, alive or dead. There are more than 100 bodies waiting for identification in a makeshift morgue outside the Antakya hospital. More than 600 aftershocks are slowing recovery efforts and make the task more dangerous. Little aid from the government has reached the city and the need is overwhelming. People walk the streets in tears, dazed. There is no place to go. Everything is covered in dust. Even with some 120,000 rescuers across Turkey and Syria now taking part in the effort, the task is daunting. With every passing hour, the likelihood of finding survivors diminishes.
Adapted. Internet: www.abcnews.go.com/International.
The word them, in bold in the text, refers to the
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Earthquake levels city of Antakya in southern Turkey
The Turkish city of Antakya, one of the hardest‐hit towns in the earthquake zone, has been nearly destroyed by the massive 7.8 quake that struck on 6th February. Tall apartment buildings were flattened, trapping residents who were sleeping when the quake struck in the early morning hours. Thousands are __________ to be buried in their homes. Most of the city was heavily damaged and rescuers have been working around the clock to pull survivors from under the rubble, racing against time in cold weather. Many residents were left homeless and had to spend nights outdoors, burning debris to keep warm as overnight temperatures dropped below freezing. Workers pulled a man in his 30s out of the ruins as a jubilant crowd burst into cheers and tears. Not long after, they found an elderly woman. Then, a 10‐ year‐old girl was also rescued: the child was under the rubble for 90 hours. These moments of hope among the devastation keep them going as darkness falls. More than 80 hours after the quake, rescuers using pails along with other equipment, found a man and his mother, and pulled them out alive. Amid the rubble, a group of rescuers were able to pull out lost family members alive. Even as more help arrives, hope for finding survivors dwindles. Family members wait in the cold to see if their loved ones will be found, alive or dead. There are more than 100 bodies waiting for identification in a makeshift morgue outside the Antakya hospital. More than 600 aftershocks are slowing recovery efforts and make the task more dangerous. Little aid from the government has reached the city and the need is overwhelming. People walk the streets in tears, dazed. There is no place to go. Everything is covered in dust. Even with some 120,000 rescuers across Turkey and Syria now taking part in the effort, the task is daunting. With every passing hour, the likelihood of finding survivors diminishes.
Adapted. Internet: www.abcnews.go.com/International.
The main idea in the text is the
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Earthquake levels city of Antakya in southern Turkey
The Turkish city of Antakya, one of the hardest‐hit towns in the earthquake zone, has been nearly destroyed by the massive 7.8 quake that struck on 6th February. Tall apartment buildings were flattened, trapping residents who were sleeping when the quake struck in the early morning hours. Thousands are __________ to be buried in their homes. Most of the city was heavily damaged and rescuers have been working around the clock to pull survivors from under the rubble, racing against time in cold weather. Many residents were left homeless and had to spend nights outdoors, burning debris to keep warm as overnight temperatures dropped below freezing. Workers pulled a man in his 30s out of the ruins as a jubilant crowd burst into cheers and tears. Not long after, they found an elderly woman. Then, a 10‐ year‐old girl was also rescued: the child was under the rubble for 90 hours. These moments of hope among the devastation keep them going as darkness falls. More than 80 hours after the quake, rescuers using pails along with other equipment, found a man and his mother, and pulled them out alive. Amid the rubble, a group of rescuers were able to pull out lost family members alive. Even as more help arrives, hope for finding survivors dwindles. Family members wait in the cold to see if their loved ones will be found, alive or dead. There are more than 100 bodies waiting for identification in a makeshift morgue outside the Antakya hospital. More than 600 aftershocks are slowing recovery efforts and make the task more dangerous. Little aid from the government has reached the city and the need is overwhelming. People walk the streets in tears, dazed. There is no place to go. Everything is covered in dust. Even with some 120,000 rescuers across Turkey and Syria now taking part in the effort, the task is daunting. With every passing hour, the likelihood of finding survivors diminishes.
Adapted. Internet: www.abcnews.go.com/International.
Read the sentences and choose the best alternative.
I‐ As time went by, the probability of finding people alive was negatively affected.
II‐ Under strict local laws, the rescuers were only allowed to work up to eight hours a day.
III‐ Most of the homes have suffered major damage due to the earthquake’s intensity.
IV‐ There weren’t many victims, as the government had been warned of the quake by seismologists.
V‐ Many people chose to spend the night outdoors because they didn’t feel safe inside their homes.
According to the text,
Read the text and answer question
Earthquake levels city of Antakya in southern Turkey
The Turkish city of Antakya, one of the hardest‐hit towns in the earthquake zone, has been nearly destroyed by the massive 7.8 quake that struck on 6th February. Tall apartment buildings were flattened, trapping residents who were sleeping when the quake struck in the early morning hours. Thousands are __________ to be buried in their homes. Most of the city was heavily damaged and rescuers have been working around the clock to pull survivors from under the rubble, racing against time in cold weather. Many residents were left homeless and had to spend nights outdoors, burning debris to keep warm as overnight temperatures dropped below freezing. Workers pulled a man in his 30s out of the ruins as a jubilant crowd burst into cheers and tears. Not long after, they found an elderly woman. Then, a 10‐ year‐old girl was also rescued: the child was under the rubble for 90 hours. These moments of hope among the devastation keep them going as darkness falls. More than 80 hours after the quake, rescuers using pails along with other equipment, found a man and his mother, and pulled them out alive. Amid the rubble, a group of rescuers were able to pull out lost family members alive. Even as more help arrives, hope for finding survivors dwindles. Family members wait in the cold to see if their loved ones will be found, alive or dead. There are more than 100 bodies waiting for identification in a makeshift morgue outside the Antakya hospital. More than 600 aftershocks are slowing recovery efforts and make the task more dangerous. Little aid from the government has reached the city and the need is overwhelming. People walk the streets in tears, dazed. There is no place to go. Everything is covered in dust. Even with some 120,000 rescuers across Turkey and Syria now taking part in the effort, the task is daunting. With every passing hour, the likelihood of finding survivors diminishes.
Adapted. Internet: www.abcnews.go.com/International.
The word levels, in the title of the text, is being used as
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Gulfstream Delivers First Two G700s to Customers
Adapted from Chad Trautvetter
Gulfstream Aerospace has delivered the first two $75 million G700s to customers, the Georgia‐based aircraft manufacturer said yesterday afternoon. Both are now in service with undisclosed customers in the U.S. The company’s 7,750‐nm flagship aircraft received FAA approval on March 29, followed by production certification and cabin interior approval on April 8. “
Beginning G700 customer deliveries less than one month after achieving FAA type certification marks an incredible milestone in Gulfstream’s history of raising the bar for the business aviation industry,” said Gulfstream president Mark Burns. “We look forward to continuing these deliveries in the weeks ahead.”
Gulfstream had hoped for certification by the end of last year and anticipated delivering as many as 15 before 2023 ended, but the prolonged approval process has shifted those deliveries into this year. As a result, Gulfstream anticipates a 44 percent bump in deliveries this year to 160 jets, including 50 to 52 G700s and fewer G280s due to the crisis in the Middle East.
Meanwhile, FlightSafety International has two level‐D simulators and three flight training devices for the G700 online at its Savannah training center, with two more G700 sims under construction. EASA and UK CAA conducted their final evaluations of these devices two weeks ago. G700 pilot training started on March 21, according to FlightSafety.
Adapted from:https://www.ainonline.com/aviation‐news/business‐aviation/2024‐ 04‐24/gulfstream‐delivers‐first‐two‐g700s‐customers.
Choose the best alternative according to the text.
Read the text and answer question.
Gulfstream Delivers First Two G700s to Customers
Adapted from Chad Trautvetter
Gulfstream Aerospace has delivered the first two $75 million G700s to customers, the Georgia‐based aircraft manufacturer said yesterday afternoon. Both are now in service with undisclosed customers in the U.S. The company’s 7,750‐nm flagship aircraft received FAA approval on March 29, followed by production certification and cabin interior approval on April 8. “
Beginning G700 customer deliveries less than one month after achieving FAA type certification marks an incredible milestone in Gulfstream’s history of raising the bar for the business aviation industry,” said Gulfstream president Mark Burns. “We look forward to continuing these deliveries in the weeks ahead.”
Gulfstream had hoped for certification by the end of last year and anticipated delivering as many as 15 before 2023 ended, but the prolonged approval process has shifted those deliveries into this year. As a result, Gulfstream anticipates a 44 percent bump in deliveries this year to 160 jets, including 50 to 52 G700s and fewer G280s due to the crisis in the Middle East.
Meanwhile, FlightSafety International has two level‐D simulators and three flight training devices for the G700 online at its Savannah training center, with two more G700 sims under construction. EASA and UK CAA conducted their final evaluations of these devices two weeks ago. G700 pilot training started on March 21, according to FlightSafety.
Adapted from:https://www.ainonline.com/aviation‐news/business‐aviation/2024‐ 04‐24/gulfstream‐delivers‐first‐two‐g700s‐customers.
Choose the correct synonym for the expression due to, in bold in the text.
Conheça nossos planos