Magna Concursos

Foram encontradas 125 questões.

1978889 Ano: 2009
Disciplina: Física
Banca: DIRENS Aeronáutica
Orgão: EEAr
As garrafas térmicas são constituídas internamente por ampolas de vidro cujas paredes duplas paralelas são separadas por uma região na qual o ar é rarefeito, pois isso contribui para minimizar a propagação de calor por
 

Provas

Questão presente nas seguintes provas
1978887 Ano: 2009
Disciplina: Português
Banca: DIRENS Aeronáutica
Orgão: EEAr
Observe as seguintes manchetes de jornal:
I- Os traficantes invadiram as escolas do bairro.
II- As escolas do bairro foram invadidas pelos traficantes.
Quanto à flexão de voz dos verbos que aparecem nas duas frases, é incorreto afirmar que
 

Provas

Questão presente nas seguintes provas
1978874 Ano: 2009
Disciplina: Física
Banca: DIRENS Aeronáutica
Orgão: EEAr
Uma determinada bateria recarregável de 12 V, totalmente carregada, consegue manter acesa uma lâmpada de 24 W por 24 horas. Se esta lâmpada for trocada por outra com a metade da potência, por quanto tempo, em horas, a mesma bateria, depois de totalmente recarregada, conseguirá mantê-la acesa?
 

Provas

Questão presente nas seguintes provas
1974333 Ano: 2009
Disciplina: Português
Banca: DIRENS Aeronáutica
Orgão: EEAr
Reconheça, entre as alternativas abaixo, aquela que apresenta características do discurso indireto livre.
 

Provas

Questão presente nas seguintes provas
1974315 Ano: 2009
Disciplina: Inglês (Língua Inglesa)
Banca: DIRENS Aeronáutica
Orgão: EEAr
Spades take up leaves
No better than spoons,
And bags full of leaves
Are light as balloons.
I make a great noise
Of rustling all day
Like rabbit and deer
Running away.
GLOSSARY: rustle - rastelar
Choose the right alternative to fill in the blank. is used for eating.
 

Provas

Questão presente nas seguintes provas
1974312 Ano: 2009
Disciplina: Física
Banca: DIRENS Aeronáutica
Orgão: EEAr
Assinale a alternativa que, de acordo com as Leis de Ohm, corresponde ao que irá acontecer após a chave ch1, do circuito abaixo ser fechada. Obs. !$ L_1, L_2 !$ e !$ L_3 !$, são lâmpadas idênticas que acendem com 12 volts.
Enunciado 2733133-1
 

Provas

Questão presente nas seguintes provas
1974199 Ano: 2009
Disciplina: Inglês (Língua Inglesa)
Banca: DIRENS Aeronáutica
Orgão: EEAr
Global warming: Adapting to a new reality
By Elisabeth Rosenthal
As countries across Europe reduce protection of greenhouse gases in order to fight climate change, scientists and citizens are discovering that effects of warming are already upon us. Irreversible warming is already happening, they say, and will continue for a century even if polluting emissions are controlled by the Kyoto Protocol, the international treaty aimed at limiting greenhouse gases. To this end, they say, governments and citizens must prepare for a steamier future, adapting to a climate that is hotter and stormier.
The early warning signs of global warming are apparent: an increase in summer deaths due to heat waves in Europe; the northern migration of toxic algae and tropical fish to the Mediterranean; the spread of disease-carrying ticks into previously inhospitable parts of Sweden and the Czech Republic. Scientists say that global warming may be partially responsible the rising number of powerful hurricanes, like Katrina, as well as an increase in floods.
Most scientific models predict that temperatures will rise 2 degrees 6 degrees Celsius, in Europe over the next century-slightly less elsewhere in the world. And people are largely unprepared. In response to this trend, countries and politicians are starting to think changes they will have to make:
adapting to climate change, for example, French farmers are shifting to crops that better tolerate warmer temperatures;
supplying the elderly with air-conditioners, as the Italian city of Brescia is doing.
Adapting to climate change seems to be simple. However, in some cases, adaptation would be so expensive that the authorities may opt to let nature take its course.
GLOSSARY:
ticks = pequenos insetos
What’s the active voice for “polluting emissions are controlled by the Kyoto Protocol”?
 

Provas

Questão presente nas seguintes provas
1969703 Ano: 2009
Disciplina: Inglês (Língua Inglesa)
Banca: DIRENS Aeronáutica
Orgão: EEAr
Airport Delays on the Rise
a news story by CNN
Have you ever had travel problems because your airplane was late? It is a common problem and it is getting worse. Airport delays make people angry and cost the country billions in lost work time.
The Federal Aviation Administration (FAA ) is the government agency that oversees air travel. They studied the problem of airline delays.
They found eleven major problems and proposed eleven ways to fix them. Some of the problems are caused because different regions of the country do things differently. The regions don’t talk to each other enough. Some of them need new computers.
Also, too many planes are flying. A strong economy has more people using airplanes to get around. Airplanes are a form of mass of transportation now, like trains and buses were in the past. More planes in the airport cause delays.
Weather is another main reason for delays. Weather causes about 70% of delays. Fog or freezing rain can cause delays.
The first thing FAA wants to do is take control away from the regions during heavy traffic times and bad weather. A national center would make decisions on thing that affect the whole country. The FAA also wants to put more distance between planes in the sky when the weather is bad. This rule could cause even more delays.
The FAA works continuously to make sure that as many flights as possible leave on time each day. They know that their solutions will not cure the problems with airport delays. But they hope to make things better.
“ too many planes”, implies that the planes are
 

Provas

Questão presente nas seguintes provas
1957447 Ano: 2009
Disciplina: Inglês (Língua Inglesa)
Banca: DIRENS Aeronáutica
Orgão: EEAr
The Grasshopper and the Ants
A grasshopper spent the summer singing and dancing in the sun. One day he saw an ant hurrying by. She looked very tired and hot.
“Why are you working on such a lovely day?” asked the grasshopper.
“I’m collecting food for the winter,” said the ant, and went on her way. She joined all the other ants carrying food to their store. The grasshopper sang another song and carried on dancing.
When the winter (1) and there was snow on the ground, the grasshopper had nothing to eat. He was very hungry so, he went and asked the ants to give him some food.
“We worked all summer to collect our food. What did you do?” said one of the ants.
“I (2) ,” replied the grasshopper. “Well, if you sing all summer and do no work,” said the ant, “then you must starve in the winter.”
“Nothing”, means
 

Provas

Questão presente nas seguintes provas
1957043 Ano: 2009
Disciplina: Matemática
Banca: DIRENS Aeronáutica
Orgão: EEAr

Um cone e um cilindro, ambos equiláteros, têm bases de raios congruentes. A razão entre as áreas das secções meridianas do cone e do cilindro é

 

Provas

Questão presente nas seguintes provas