Questões de Concurso Público TC-DF 2023 para Auditor de Controle Externo – Área Especializada – Especialidade Tecnologia da Informação – Orientação Sistemas de TI
Foram encontradas 12 questões
Ano: 2023
Banca:
CESPE / CEBRASPE
Órgão:
TC-DF
Prova:
CESPE / CEBRASPE - 2023 - TC-DF - Auditor de Controle Externo – Área Especializada – Especialidade Tecnologia da Informação – Orientação Sistemas de TI |
Q2341032
Inglês
Texto associado
Text 1A1-I
Hydrogen is viewed as a promising alternative to fossil
fuel, but the methods used to make it either generate too much
carbon dioxide or are too expensive. Rice University researchers
have found a way to harvest hydrogen from plastic waste using a
low-emission method that could more than pay for itself.
By comparison, “green” hydrogen ⎯ produced using
renewable energy sources to split water into its two component
elements ⎯ costs roughly US$ 5 for just over two pounds. Though
cheaper, most of the nearly 100 million tons of hydrogen used
globally in 2022 was derived from fossil fuels, its production
generating roughly 12 tons of carbon dioxide per ton of
hydrogen.
The researchers exposed plastic waste samples to rapid
flash Joule, bringing their temperature up to 3100 Kelvin.
“We demonstrated that we are able to recover up to 68% of that
atomic hydrogen as gas with a 94% purity,” Kevin Wyss said.
“I hope that this work will allow for the production of clean
hydrogen from waste plastics, possibly solving major
environmental problems like plastic pollution and the greenhouse
gas-intensive production of hydrogen by steam-methane
reforming.”
Internet: <news.rice.edu> (adapted).
Based on text 1A1-I, judge the following item.
One of the drawbacks about the current forms of extraction
of hydrogen as fuel is the elevated cost.
Ano: 2023
Banca:
CESPE / CEBRASPE
Órgão:
TC-DF
Prova:
CESPE / CEBRASPE - 2023 - TC-DF - Auditor de Controle Externo – Área Especializada – Especialidade Tecnologia da Informação – Orientação Sistemas de TI |
Q2341033
Inglês
Texto associado
Text 1A1-I
Hydrogen is viewed as a promising alternative to fossil
fuel, but the methods used to make it either generate too much
carbon dioxide or are too expensive. Rice University researchers
have found a way to harvest hydrogen from plastic waste using a
low-emission method that could more than pay for itself.
By comparison, “green” hydrogen ⎯ produced using
renewable energy sources to split water into its two component
elements ⎯ costs roughly US$ 5 for just over two pounds. Though
cheaper, most of the nearly 100 million tons of hydrogen used
globally in 2022 was derived from fossil fuels, its production
generating roughly 12 tons of carbon dioxide per ton of
hydrogen.
The researchers exposed plastic waste samples to rapid
flash Joule, bringing their temperature up to 3100 Kelvin.
“We demonstrated that we are able to recover up to 68% of that
atomic hydrogen as gas with a 94% purity,” Kevin Wyss said.
“I hope that this work will allow for the production of clean
hydrogen from waste plastics, possibly solving major
environmental problems like plastic pollution and the greenhouse
gas-intensive production of hydrogen by steam-methane
reforming.”
Internet: <news.rice.edu> (adapted).
Based on text 1A1-I, judge the following item.
The pronoun “their” (first sentence of the third paragraph)
refers back to “plastic waste samples”.
Ano: 2023
Banca:
CESPE / CEBRASPE
Órgão:
TC-DF
Prova:
CESPE / CEBRASPE - 2023 - TC-DF - Auditor de Controle Externo – Área Especializada – Especialidade Tecnologia da Informação – Orientação Sistemas de TI |
Q2341034
Inglês
Texto associado
Text 1A1-I
Hydrogen is viewed as a promising alternative to fossil
fuel, but the methods used to make it either generate too much
carbon dioxide or are too expensive. Rice University researchers
have found a way to harvest hydrogen from plastic waste using a
low-emission method that could more than pay for itself.
By comparison, “green” hydrogen ⎯ produced using
renewable energy sources to split water into its two component
elements ⎯ costs roughly US$ 5 for just over two pounds. Though
cheaper, most of the nearly 100 million tons of hydrogen used
globally in 2022 was derived from fossil fuels, its production
generating roughly 12 tons of carbon dioxide per ton of
hydrogen.
The researchers exposed plastic waste samples to rapid
flash Joule, bringing their temperature up to 3100 Kelvin.
“We demonstrated that we are able to recover up to 68% of that
atomic hydrogen as gas with a 94% purity,” Kevin Wyss said.
“I hope that this work will allow for the production of clean
hydrogen from waste plastics, possibly solving major
environmental problems like plastic pollution and the greenhouse
gas-intensive production of hydrogen by steam-methane
reforming.”
Internet: <news.rice.edu> (adapted).
Based on text 1A1-I, judge the following item.
The word “itself” (last sentence of the first paragraph) refers
back to “plastic”, meaning that plastic could pay for its cost.
Ano: 2023
Banca:
CESPE / CEBRASPE
Órgão:
TC-DF
Prova:
CESPE / CEBRASPE - 2023 - TC-DF - Auditor de Controle Externo – Área Especializada – Especialidade Tecnologia da Informação – Orientação Sistemas de TI |
Q2341035
Inglês
Texto associado
Text 1A1-I
Hydrogen is viewed as a promising alternative to fossil
fuel, but the methods used to make it either generate too much
carbon dioxide or are too expensive. Rice University researchers
have found a way to harvest hydrogen from plastic waste using a
low-emission method that could more than pay for itself.
By comparison, “green” hydrogen ⎯ produced using
renewable energy sources to split water into its two component
elements ⎯ costs roughly US$ 5 for just over two pounds. Though
cheaper, most of the nearly 100 million tons of hydrogen used
globally in 2022 was derived from fossil fuels, its production
generating roughly 12 tons of carbon dioxide per ton of
hydrogen.
The researchers exposed plastic waste samples to rapid
flash Joule, bringing their temperature up to 3100 Kelvin.
“We demonstrated that we are able to recover up to 68% of that
atomic hydrogen as gas with a 94% purity,” Kevin Wyss said.
“I hope that this work will allow for the production of clean
hydrogen from waste plastics, possibly solving major
environmental problems like plastic pollution and the greenhouse
gas-intensive production of hydrogen by steam-methane
reforming.”
Internet: <news.rice.edu> (adapted).
Based on text 1A1-I, judge the following item.
The sentence “‘green’ hydrogen ⎯ produced using renewable
energy sources to split water into its two component
elements ⎯ costs roughly US$ 5” could be correctly rewritten
as the use of renewable energy sources to separate water
into its two component elements produces ‘green’
hydrogen, which costs about US$ 5.
Ano: 2023
Banca:
CESPE / CEBRASPE
Órgão:
TC-DF
Prova:
CESPE / CEBRASPE - 2023 - TC-DF - Auditor de Controle Externo – Área Especializada – Especialidade Tecnologia da Informação – Orientação Sistemas de TI |
Q2341036
Inglês
Texto associado
Text 1A1-I
Hydrogen is viewed as a promising alternative to fossil
fuel, but the methods used to make it either generate too much
carbon dioxide or are too expensive. Rice University researchers
have found a way to harvest hydrogen from plastic waste using a
low-emission method that could more than pay for itself.
By comparison, “green” hydrogen ⎯ produced using
renewable energy sources to split water into its two component
elements ⎯ costs roughly US$ 5 for just over two pounds. Though
cheaper, most of the nearly 100 million tons of hydrogen used
globally in 2022 was derived from fossil fuels, its production
generating roughly 12 tons of carbon dioxide per ton of
hydrogen.
The researchers exposed plastic waste samples to rapid
flash Joule, bringing their temperature up to 3100 Kelvin.
“We demonstrated that we are able to recover up to 68% of that
atomic hydrogen as gas with a 94% purity,” Kevin Wyss said.
“I hope that this work will allow for the production of clean
hydrogen from waste plastics, possibly solving major
environmental problems like plastic pollution and the greenhouse
gas-intensive production of hydrogen by steam-methane
reforming.”
Internet: <news.rice.edu> (adapted).
Based on text 1A1-I, judge the following item.
It is correct to infer from text 1A1-I that researcher Kevin
Wyss is unenthusiastic about the potential of his work as a
possible solution for some environmental issues.
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