Questões de Concurso Sobre vocabulário | vocabulary em inglês

Foram encontradas 2.161 questões

Q1787505 Inglês
(Title)

Production bottlenecks are generally considered to be temporary blockades to increased output; they can be thrown up anywhere along the course of a production process. Some are easy to identify and to remedy, while others are devilish.

The bottleneck that is easy to cope................................. is stationary. Work-in-process inventory piles..................... quickly behind it; clearly, little is getting through. Its cause is usually also clear – a machine has broken........................ or key workers are absent or demand has simply outstripped the clear, rated capacity of a machine – and the remedy follows easily. Such bottlenecks often occur........................ service operations, causing customer waits.

More subtle are bottlenecks that shift from one part of the process to another or that have no clear cause. Inventories build up in different places and at different times. Such bottlenecks creep up on management and demand more thorough investigation. Perhaps they were detected as flaws in a product’s quality caused inadvertently by one or more workers trying to keep pace with production demands that should not have been placed on them. Or, they may be caused by missing parts. They may be caused by new product startup or changes in the mix of products through the factory. In such cases the remedies are less clear-cut, and some analysis is called for.
In the sentence “Such bottlenecks creep up on management and demand more thorough investigation.”, the word in bold, means:
Alternativas
Q1787500 Inglês
(Title)

Production bottlenecks are generally considered to be temporary blockades to increased output; they can be thrown up anywhere along the course of a production process. Some are easy to identify and to remedy, while others are devilish.

The bottleneck that is easy to cope................................. is stationary. Work-in-process inventory piles..................... quickly behind it; clearly, little is getting through. Its cause is usually also clear – a machine has broken........................ or key workers are absent or demand has simply outstripped the clear, rated capacity of a machine – and the remedy follows easily. Such bottlenecks often occur........................ service operations, causing customer waits.

More subtle are bottlenecks that shift from one part of the process to another or that have no clear cause. Inventories build up in different places and at different times. Such bottlenecks creep up on management and demand more thorough investigation. Perhaps they were detected as flaws in a product’s quality caused inadvertently by one or more workers trying to keep pace with production demands that should not have been placed on them. Or, they may be caused by missing parts. They may be caused by new product startup or changes in the mix of products through the factory. In such cases the remedies are less clear-cut, and some analysis is called for.
The word management in paragraph 3, is closest in meaning to:
Alternativas
Q1787497 Inglês
(Title)

Production bottlenecks are generally considered to be temporary blockades to increased output; they can be thrown up anywhere along the course of a production process. Some are easy to identify and to remedy, while others are devilish.

The bottleneck that is easy to cope................................. is stationary. Work-in-process inventory piles..................... quickly behind it; clearly, little is getting through. Its cause is usually also clear – a machine has broken........................ or key workers are absent or demand has simply outstripped the clear, rated capacity of a machine – and the remedy follows easily. Such bottlenecks often occur........................ service operations, causing customer waits.

More subtle are bottlenecks that shift from one part of the process to another or that have no clear cause. Inventories build up in different places and at different times. Such bottlenecks creep up on management and demand more thorough investigation. Perhaps they were detected as flaws in a product’s quality caused inadvertently by one or more workers trying to keep pace with production demands that should not have been placed on them. Or, they may be caused by missing parts. They may be caused by new product startup or changes in the mix of products through the factory. In such cases the remedies are less clear-cut, and some analysis is called for.
The word devilish in paragraph 1, is closest in meaning to:
Alternativas
Q1785878 Inglês
Common Side Effects of Chemo and Radiation on kids 

    Chemo and radiation cause similar side effects. Chemo's side effects depend on the type of drug used, the dosage, and a child's overall health. These effects are more likely to affect the whole body. Radiation's side effects, on the other hand, tend to affect the area being treated. But they do still depend on the dose of radiation given, the location on the body, and whether the radiation was internal or external. Some of them are: fatigue, flu-like symptoms, pain, gastrointestinal problems, skin and weight changes, hair loss, kidney and bladder problems, anemia, blood clotting problems, neutropenia, infection. Besides that both chemo and radiation — specifically to the head and neck — can lead to mouth sores, sensitive gums, an irritated throat, and an increased risk of tooth decay.
    Kids with neutropenia need to take special precautions against germs. Like all kids, they should wash their hands well and often, especially before eating, after using the bathroom, and after touching animals. They also need to avoid crowded indoor places or visiting with friends or family members who have contagious illnesses such as a cold, the flu, or chickenpox.
    Cells that help blood to clot, called platelets, are another type of blood cell that can be affected during cancer treatment, especially chemo. Low platelets, orthrombocytopenia, can lead to bleeding. This may cause small red spots on the skin, bloody or black bowel movements, vomit, or bleeding from the nose, gums, or line site (the area where fluids and medicines are given to people with cancer). Kids with a low platelet count have to take it easy to reduce the risk of bleeding. That means avoiding rough play and contact sports (like football), and brushing with a soft toothbrush and flossing very gently. In very serious cases of thrombocytopenia, a child might need a blood transfusion.
    Most side effects start to go away after cancer treatment ends and the healthy cells have a chance to grow again. Sometimes, though, cancer treatment can cause changes to a growing body. These long-term side effects can include permanent damage to the heart, lungs, brain, nerves, kidneys, thyroid gland, or reproductive organs. In some cases, kids and teens who’ve had some types of chemotherapy have a higher risk of developing a second type of cancer later in life. Cancer treatment has come a long way. But it can be hard for kids and teens to cope with the sometimes painful or uncomfortable side effects of treatment. Fortunately, doctors have many ways to make treatments easier to manage.

(Available: https://kidshealth.org. Adapted.)
The word “this” (L25) refers back to:
Alternativas
Q1785877 Inglês
Common Side Effects of Chemo and Radiation on kids 

    Chemo and radiation cause similar side effects. Chemo's side effects depend on the type of drug used, the dosage, and a child's overall health. These effects are more likely to affect the whole body. Radiation's side effects, on the other hand, tend to affect the area being treated. But they do still depend on the dose of radiation given, the location on the body, and whether the radiation was internal or external. Some of them are: fatigue, flu-like symptoms, pain, gastrointestinal problems, skin and weight changes, hair loss, kidney and bladder problems, anemia, blood clotting problems, neutropenia, infection. Besides that both chemo and radiation — specifically to the head and neck — can lead to mouth sores, sensitive gums, an irritated throat, and an increased risk of tooth decay.
    Kids with neutropenia need to take special precautions against germs. Like all kids, they should wash their hands well and often, especially before eating, after using the bathroom, and after touching animals. They also need to avoid crowded indoor places or visiting with friends or family members who have contagious illnesses such as a cold, the flu, or chickenpox.
    Cells that help blood to clot, called platelets, are another type of blood cell that can be affected during cancer treatment, especially chemo. Low platelets, orthrombocytopenia, can lead to bleeding. This may cause small red spots on the skin, bloody or black bowel movements, vomit, or bleeding from the nose, gums, or line site (the area where fluids and medicines are given to people with cancer). Kids with a low platelet count have to take it easy to reduce the risk of bleeding. That means avoiding rough play and contact sports (like football), and brushing with a soft toothbrush and flossing very gently. In very serious cases of thrombocytopenia, a child might need a blood transfusion.
    Most side effects start to go away after cancer treatment ends and the healthy cells have a chance to grow again. Sometimes, though, cancer treatment can cause changes to a growing body. These long-term side effects can include permanent damage to the heart, lungs, brain, nerves, kidneys, thyroid gland, or reproductive organs. In some cases, kids and teens who’ve had some types of chemotherapy have a higher risk of developing a second type of cancer later in life. Cancer treatment has come a long way. But it can be hard for kids and teens to cope with the sometimes painful or uncomfortable side effects of treatment. Fortunately, doctors have many ways to make treatments easier to manage.

(Available: https://kidshealth.org. Adapted.)
The word “likely” (L04) expresses the idea of:
Alternativas
Q1784418 Inglês

A Brief and Simplified Description of Papermaking


The paper we use today is created from individual wood fibers that are first suspended in water and then pressed and dried into sheets. The process of converting the wood to a suspension of wood fibers in water is known as pulp making, while the manufacture of the dried and pressed sheets of paper is formally termed papermaking. The process of making paper has undergone a steady evolution, and larger and more sophisticated equipment and better technology continue to improve it.


The Wood yard and Wood rooms


The process at Androscogging began with receiving wood in the form of chips or of logs 4 or 8 feet in length. From 6 AM to 10 PM a steady stream of trucks and railroad cars were weighted and unloaded. About 40 percent were suplied by independents who were paid by weight their logs. The mill also received wood chips from lumber mills in the area. The chips and logs were stored in mammoth piles with separate piles for wood of different species (such as pine, spruce, hemlock).


When needed, logs were floated in flumes......(1).....the wood yard.....(2).....one of the mill’s three wood rooms. There, bark was rubbed......(3)........in long, ribbed debarking drums by tumbling the logs against one another. The logs then fell into a chipper;......(4)......seconds a large log was reduced to a pile of chips approximately 1 inch by 1 inch by 1/4 inch.


The chips were stored in silos. There were separate silos for softwoods (spruce, fir, hemlock, and pine) and hardwoods (maple, oak, beech, and birch). This separate and temporary storage of chips permitted the controlled mixing of chips into the precise recipe for the grade of paper being produced.


The wood chips were then sorted through large, flat vibrating screens. Oversized chips were rechipped, and ones that were too small were collected for burning in the power house. (The mill provided approximately 20 percent of all its own steam and electricity needs from burning waste. An additional 50 percent of total electricity needs was produced by harnessing the river for hydroelectric power.)


Once drawn from the silo into the digesters, there was no stopping the flow of chips into paper. 


Pulpmaking


The pulp made at Androscoggin was of two types: Kraft pulp (produced chemically) and ground wood pulp (produced mechanically). Kraft pulp was far more important to the high quality white papers produced at Androscoggin, accounting for 80 percent of all the pulp used. Kraft pulp makes strong paper. (Kraft is German for strength. A German invented the Kraft pulp process in 1884.) A paper’s strength generally comes from the overlap and binding of long fibers of softwood; only chemically was it initially possible to separate long wood fibers for suspension in water. Hardwood fibers are generally smaller and thinner and help smooth the paper and make it less porous.


The ground wood pulping process was simpler and less expensive than the Kraft process. It took high quality spruce and fir logs and pressed them continuously against a revolving stone that broke apart the wood’s fibers. The fibers, however, were smaller than those produced by the Kraft process and, although used to make newsprint, were useful at Androscoggin in providing “fill” for the coated publication gloss papers of machines 2 and 3, as will be described later.


(A)The chemical Kraft process worked by dissolving the lignin that bonds wood fibers together. (B) It did this in a tall pressure cooker, called a digester, by “cooking” the chips in a solution of caustic soda (NaOH) and sodium sulfide (Na2S), which was termed the “white liquor.” (C)The two digesters at Androscoggin were continuous digesters; chips and liquor went into the top, were cooked together as they slowly settled down to the bottom, and were drawn off the bottom after about three hours. (D) By this time, the white liquor had changed chemically to “black liquor’’; the digested chips were then separated from this black liquor. (E)


In what was known as the “cold blow” process, the hot, pressurized chips were gradually cooled and depressurized. A “cold liquor’’ (170°F) was introduced to the bottom of the digester and served both to cool and to transport the digested chips to a diffusion washer that washed and depressurized the chips. Because so much of the lignin bonding the fibers together had been removed, the wood fiber in the chips literally fell apart at this stage.


The black liquor from the digester entered a separate four-step recovery process. Over 95 percent of the black liquor could be reconstituted as white liquor, thereby saving on chemical costs and significantly lowering pollution. The four-step process involved (1) washing the black liquor from the cooked fiber to produce weak black liquor, (2) evaporating the weak black liquor to a thicker consistency, (3) combustion of this heavy black liquor with sodium sulfate (Na2SO4 ), and redissolving the smelt, yielding a “green liquor” (sodium carbonate + sodium sulfide), and (4) adding lime, which reacted with the green liquor to produce white liquor. The last step was known as causticization.


Meanwhile, the wood-fiber pulp was purged of impurities like bark and dirt by mechanical screening and by spinning the mixture in centrifugal cleaners. The pulp was then concentrated by removing water from it so that it could be stored and bleached more economically.


By this time, depending on the type of pulp being made, it had been between 3 1/2 and 5 hours since the chips had entered the pulp mill. 


All the Kraft pulp was then bleached. Bleaching took between 5 and 6 hours. It consisted of a three-step process in which (1) a mix of chlorine (Cl2 ) and chlorine dioxide (CIO2 ) was introduced to the pulp and the pulp was washed; (2) a patented mix of sodium hydroxide (NaOH), liquid oxygen, and hydrogen peroxide (H2 O2 ) was then added to the pulp and the pulp was again washed; and (3) chlorine dioxide (ClO2 ) was introduced and the pulp washed a final time. The result was like fluffy cream of wheat. By this time the pulp was nearly ready to be made into paper.


From the bleachery, the stock of pulp was held for a short time in storage (a maximum of 16 hours) and then proceeded through a series of blending operations that permitted a string of additives (for example, filler clay, resins, brighteners, alum, dyes) to be mixed into the pulp according to the recipe for the paper grade being produced. Here, too, “broke” (paper wastes from the mill itself) was recycled into the pulp. The pulp was then once again cleaned and blended into an even consistency before moving to the papermaking machine itself.


It made a difference whether the broke was of coated or uncoated paper, and whether it was white or colored. White, uncoated paper could be recycled immediately. Colored, uncoated paper had to be rebleached. Coated papers, because of the clays in them, could not be reclaimed.



Meanwhile, the wood-fiber pulp was purged of impurities like bark and dirt by mechanical screening and by spinning the mixture in centrifugal cleaners.
The underlined is closest to the meaning to:
Alternativas
Q1784417 Inglês

A Brief and Simplified Description of Papermaking


The paper we use today is created from individual wood fibers that are first suspended in water and then pressed and dried into sheets. The process of converting the wood to a suspension of wood fibers in water is known as pulp making, while the manufacture of the dried and pressed sheets of paper is formally termed papermaking. The process of making paper has undergone a steady evolution, and larger and more sophisticated equipment and better technology continue to improve it.


The Wood yard and Wood rooms


The process at Androscogging began with receiving wood in the form of chips or of logs 4 or 8 feet in length. From 6 AM to 10 PM a steady stream of trucks and railroad cars were weighted and unloaded. About 40 percent were suplied by independents who were paid by weight their logs. The mill also received wood chips from lumber mills in the area. The chips and logs were stored in mammoth piles with separate piles for wood of different species (such as pine, spruce, hemlock).


When needed, logs were floated in flumes......(1).....the wood yard.....(2).....one of the mill’s three wood rooms. There, bark was rubbed......(3)........in long, ribbed debarking drums by tumbling the logs against one another. The logs then fell into a chipper;......(4)......seconds a large log was reduced to a pile of chips approximately 1 inch by 1 inch by 1/4 inch.


The chips were stored in silos. There were separate silos for softwoods (spruce, fir, hemlock, and pine) and hardwoods (maple, oak, beech, and birch). This separate and temporary storage of chips permitted the controlled mixing of chips into the precise recipe for the grade of paper being produced.


The wood chips were then sorted through large, flat vibrating screens. Oversized chips were rechipped, and ones that were too small were collected for burning in the power house. (The mill provided approximately 20 percent of all its own steam and electricity needs from burning waste. An additional 50 percent of total electricity needs was produced by harnessing the river for hydroelectric power.)


Once drawn from the silo into the digesters, there was no stopping the flow of chips into paper. 


Pulpmaking


The pulp made at Androscoggin was of two types: Kraft pulp (produced chemically) and ground wood pulp (produced mechanically). Kraft pulp was far more important to the high quality white papers produced at Androscoggin, accounting for 80 percent of all the pulp used. Kraft pulp makes strong paper. (Kraft is German for strength. A German invented the Kraft pulp process in 1884.) A paper’s strength generally comes from the overlap and binding of long fibers of softwood; only chemically was it initially possible to separate long wood fibers for suspension in water. Hardwood fibers are generally smaller and thinner and help smooth the paper and make it less porous.


The ground wood pulping process was simpler and less expensive than the Kraft process. It took high quality spruce and fir logs and pressed them continuously against a revolving stone that broke apart the wood’s fibers. The fibers, however, were smaller than those produced by the Kraft process and, although used to make newsprint, were useful at Androscoggin in providing “fill” for the coated publication gloss papers of machines 2 and 3, as will be described later.


(A)The chemical Kraft process worked by dissolving the lignin that bonds wood fibers together. (B) It did this in a tall pressure cooker, called a digester, by “cooking” the chips in a solution of caustic soda (NaOH) and sodium sulfide (Na2S), which was termed the “white liquor.” (C)The two digesters at Androscoggin were continuous digesters; chips and liquor went into the top, were cooked together as they slowly settled down to the bottom, and were drawn off the bottom after about three hours. (D) By this time, the white liquor had changed chemically to “black liquor’’; the digested chips were then separated from this black liquor. (E)


In what was known as the “cold blow” process, the hot, pressurized chips were gradually cooled and depressurized. A “cold liquor’’ (170°F) was introduced to the bottom of the digester and served both to cool and to transport the digested chips to a diffusion washer that washed and depressurized the chips. Because so much of the lignin bonding the fibers together had been removed, the wood fiber in the chips literally fell apart at this stage.


The black liquor from the digester entered a separate four-step recovery process. Over 95 percent of the black liquor could be reconstituted as white liquor, thereby saving on chemical costs and significantly lowering pollution. The four-step process involved (1) washing the black liquor from the cooked fiber to produce weak black liquor, (2) evaporating the weak black liquor to a thicker consistency, (3) combustion of this heavy black liquor with sodium sulfate (Na2SO4 ), and redissolving the smelt, yielding a “green liquor” (sodium carbonate + sodium sulfide), and (4) adding lime, which reacted with the green liquor to produce white liquor. The last step was known as causticization.


Meanwhile, the wood-fiber pulp was purged of impurities like bark and dirt by mechanical screening and by spinning the mixture in centrifugal cleaners. The pulp was then concentrated by removing water from it so that it could be stored and bleached more economically.


By this time, depending on the type of pulp being made, it had been between 3 1/2 and 5 hours since the chips had entered the pulp mill. 


All the Kraft pulp was then bleached. Bleaching took between 5 and 6 hours. It consisted of a three-step process in which (1) a mix of chlorine (Cl2 ) and chlorine dioxide (CIO2 ) was introduced to the pulp and the pulp was washed; (2) a patented mix of sodium hydroxide (NaOH), liquid oxygen, and hydrogen peroxide (H2 O2 ) was then added to the pulp and the pulp was again washed; and (3) chlorine dioxide (ClO2 ) was introduced and the pulp washed a final time. The result was like fluffy cream of wheat. By this time the pulp was nearly ready to be made into paper.


From the bleachery, the stock of pulp was held for a short time in storage (a maximum of 16 hours) and then proceeded through a series of blending operations that permitted a string of additives (for example, filler clay, resins, brighteners, alum, dyes) to be mixed into the pulp according to the recipe for the paper grade being produced. Here, too, “broke” (paper wastes from the mill itself) was recycled into the pulp. The pulp was then once again cleaned and blended into an even consistency before moving to the papermaking machine itself.


It made a difference whether the broke was of coated or uncoated paper, and whether it was white or colored. White, uncoated paper could be recycled immediately. Colored, uncoated paper had to be rebleached. Coated papers, because of the clays in them, could not be reclaimed.



The word “providing” in paragraph 7, is closest in meaning to:
Alternativas
Q1784413 Inglês

A Brief and Simplified Description of Papermaking


The paper we use today is created from individual wood fibers that are first suspended in water and then pressed and dried into sheets. The process of converting the wood to a suspension of wood fibers in water is known as pulp making, while the manufacture of the dried and pressed sheets of paper is formally termed papermaking. The process of making paper has undergone a steady evolution, and larger and more sophisticated equipment and better technology continue to improve it.


The Wood yard and Wood rooms


The process at Androscogging began with receiving wood in the form of chips or of logs 4 or 8 feet in length. From 6 AM to 10 PM a steady stream of trucks and railroad cars were weighted and unloaded. About 40 percent were suplied by independents who were paid by weight their logs. The mill also received wood chips from lumber mills in the area. The chips and logs were stored in mammoth piles with separate piles for wood of different species (such as pine, spruce, hemlock).


When needed, logs were floated in flumes......(1).....the wood yard.....(2).....one of the mill’s three wood rooms. There, bark was rubbed......(3)........in long, ribbed debarking drums by tumbling the logs against one another. The logs then fell into a chipper;......(4)......seconds a large log was reduced to a pile of chips approximately 1 inch by 1 inch by 1/4 inch.


The chips were stored in silos. There were separate silos for softwoods (spruce, fir, hemlock, and pine) and hardwoods (maple, oak, beech, and birch). This separate and temporary storage of chips permitted the controlled mixing of chips into the precise recipe for the grade of paper being produced.


The wood chips were then sorted through large, flat vibrating screens. Oversized chips were rechipped, and ones that were too small were collected for burning in the power house. (The mill provided approximately 20 percent of all its own steam and electricity needs from burning waste. An additional 50 percent of total electricity needs was produced by harnessing the river for hydroelectric power.)


Once drawn from the silo into the digesters, there was no stopping the flow of chips into paper. 


Pulpmaking


The pulp made at Androscoggin was of two types: Kraft pulp (produced chemically) and ground wood pulp (produced mechanically). Kraft pulp was far more important to the high quality white papers produced at Androscoggin, accounting for 80 percent of all the pulp used. Kraft pulp makes strong paper. (Kraft is German for strength. A German invented the Kraft pulp process in 1884.) A paper’s strength generally comes from the overlap and binding of long fibers of softwood; only chemically was it initially possible to separate long wood fibers for suspension in water. Hardwood fibers are generally smaller and thinner and help smooth the paper and make it less porous.


The ground wood pulping process was simpler and less expensive than the Kraft process. It took high quality spruce and fir logs and pressed them continuously against a revolving stone that broke apart the wood’s fibers. The fibers, however, were smaller than those produced by the Kraft process and, although used to make newsprint, were useful at Androscoggin in providing “fill” for the coated publication gloss papers of machines 2 and 3, as will be described later.


(A)The chemical Kraft process worked by dissolving the lignin that bonds wood fibers together. (B) It did this in a tall pressure cooker, called a digester, by “cooking” the chips in a solution of caustic soda (NaOH) and sodium sulfide (Na2S), which was termed the “white liquor.” (C)The two digesters at Androscoggin were continuous digesters; chips and liquor went into the top, were cooked together as they slowly settled down to the bottom, and were drawn off the bottom after about three hours. (D) By this time, the white liquor had changed chemically to “black liquor’’; the digested chips were then separated from this black liquor. (E)


In what was known as the “cold blow” process, the hot, pressurized chips were gradually cooled and depressurized. A “cold liquor’’ (170°F) was introduced to the bottom of the digester and served both to cool and to transport the digested chips to a diffusion washer that washed and depressurized the chips. Because so much of the lignin bonding the fibers together had been removed, the wood fiber in the chips literally fell apart at this stage.


The black liquor from the digester entered a separate four-step recovery process. Over 95 percent of the black liquor could be reconstituted as white liquor, thereby saving on chemical costs and significantly lowering pollution. The four-step process involved (1) washing the black liquor from the cooked fiber to produce weak black liquor, (2) evaporating the weak black liquor to a thicker consistency, (3) combustion of this heavy black liquor with sodium sulfate (Na2SO4 ), and redissolving the smelt, yielding a “green liquor” (sodium carbonate + sodium sulfide), and (4) adding lime, which reacted with the green liquor to produce white liquor. The last step was known as causticization.


Meanwhile, the wood-fiber pulp was purged of impurities like bark and dirt by mechanical screening and by spinning the mixture in centrifugal cleaners. The pulp was then concentrated by removing water from it so that it could be stored and bleached more economically.


By this time, depending on the type of pulp being made, it had been between 3 1/2 and 5 hours since the chips had entered the pulp mill. 


All the Kraft pulp was then bleached. Bleaching took between 5 and 6 hours. It consisted of a three-step process in which (1) a mix of chlorine (Cl2 ) and chlorine dioxide (CIO2 ) was introduced to the pulp and the pulp was washed; (2) a patented mix of sodium hydroxide (NaOH), liquid oxygen, and hydrogen peroxide (H2 O2 ) was then added to the pulp and the pulp was again washed; and (3) chlorine dioxide (ClO2 ) was introduced and the pulp washed a final time. The result was like fluffy cream of wheat. By this time the pulp was nearly ready to be made into paper.


From the bleachery, the stock of pulp was held for a short time in storage (a maximum of 16 hours) and then proceeded through a series of blending operations that permitted a string of additives (for example, filler clay, resins, brighteners, alum, dyes) to be mixed into the pulp according to the recipe for the paper grade being produced. Here, too, “broke” (paper wastes from the mill itself) was recycled into the pulp. The pulp was then once again cleaned and blended into an even consistency before moving to the papermaking machine itself.


It made a difference whether the broke was of coated or uncoated paper, and whether it was white or colored. White, uncoated paper could be recycled immediately. Colored, uncoated paper had to be rebleached. Coated papers, because of the clays in them, could not be reclaimed.



Look at the word “improve” in paragraph 1. This word could best be replaced by which of the following?
Alternativas
Q1784412 Inglês

A Brief and Simplified Description of Papermaking


The paper we use today is created from individual wood fibers that are first suspended in water and then pressed and dried into sheets. The process of converting the wood to a suspension of wood fibers in water is known as pulp making, while the manufacture of the dried and pressed sheets of paper is formally termed papermaking. The process of making paper has undergone a steady evolution, and larger and more sophisticated equipment and better technology continue to improve it.


The Wood yard and Wood rooms


The process at Androscogging began with receiving wood in the form of chips or of logs 4 or 8 feet in length. From 6 AM to 10 PM a steady stream of trucks and railroad cars were weighted and unloaded. About 40 percent were suplied by independents who were paid by weight their logs. The mill also received wood chips from lumber mills in the area. The chips and logs were stored in mammoth piles with separate piles for wood of different species (such as pine, spruce, hemlock).


When needed, logs were floated in flumes......(1).....the wood yard.....(2).....one of the mill’s three wood rooms. There, bark was rubbed......(3)........in long, ribbed debarking drums by tumbling the logs against one another. The logs then fell into a chipper;......(4)......seconds a large log was reduced to a pile of chips approximately 1 inch by 1 inch by 1/4 inch.


The chips were stored in silos. There were separate silos for softwoods (spruce, fir, hemlock, and pine) and hardwoods (maple, oak, beech, and birch). This separate and temporary storage of chips permitted the controlled mixing of chips into the precise recipe for the grade of paper being produced.


The wood chips were then sorted through large, flat vibrating screens. Oversized chips were rechipped, and ones that were too small were collected for burning in the power house. (The mill provided approximately 20 percent of all its own steam and electricity needs from burning waste. An additional 50 percent of total electricity needs was produced by harnessing the river for hydroelectric power.)


Once drawn from the silo into the digesters, there was no stopping the flow of chips into paper. 


Pulpmaking


The pulp made at Androscoggin was of two types: Kraft pulp (produced chemically) and ground wood pulp (produced mechanically). Kraft pulp was far more important to the high quality white papers produced at Androscoggin, accounting for 80 percent of all the pulp used. Kraft pulp makes strong paper. (Kraft is German for strength. A German invented the Kraft pulp process in 1884.) A paper’s strength generally comes from the overlap and binding of long fibers of softwood; only chemically was it initially possible to separate long wood fibers for suspension in water. Hardwood fibers are generally smaller and thinner and help smooth the paper and make it less porous.


The ground wood pulping process was simpler and less expensive than the Kraft process. It took high quality spruce and fir logs and pressed them continuously against a revolving stone that broke apart the wood’s fibers. The fibers, however, were smaller than those produced by the Kraft process and, although used to make newsprint, were useful at Androscoggin in providing “fill” for the coated publication gloss papers of machines 2 and 3, as will be described later.


(A)The chemical Kraft process worked by dissolving the lignin that bonds wood fibers together. (B) It did this in a tall pressure cooker, called a digester, by “cooking” the chips in a solution of caustic soda (NaOH) and sodium sulfide (Na2S), which was termed the “white liquor.” (C)The two digesters at Androscoggin were continuous digesters; chips and liquor went into the top, were cooked together as they slowly settled down to the bottom, and were drawn off the bottom after about three hours. (D) By this time, the white liquor had changed chemically to “black liquor’’; the digested chips were then separated from this black liquor. (E)


In what was known as the “cold blow” process, the hot, pressurized chips were gradually cooled and depressurized. A “cold liquor’’ (170°F) was introduced to the bottom of the digester and served both to cool and to transport the digested chips to a diffusion washer that washed and depressurized the chips. Because so much of the lignin bonding the fibers together had been removed, the wood fiber in the chips literally fell apart at this stage.


The black liquor from the digester entered a separate four-step recovery process. Over 95 percent of the black liquor could be reconstituted as white liquor, thereby saving on chemical costs and significantly lowering pollution. The four-step process involved (1) washing the black liquor from the cooked fiber to produce weak black liquor, (2) evaporating the weak black liquor to a thicker consistency, (3) combustion of this heavy black liquor with sodium sulfate (Na2SO4 ), and redissolving the smelt, yielding a “green liquor” (sodium carbonate + sodium sulfide), and (4) adding lime, which reacted with the green liquor to produce white liquor. The last step was known as causticization.


Meanwhile, the wood-fiber pulp was purged of impurities like bark and dirt by mechanical screening and by spinning the mixture in centrifugal cleaners. The pulp was then concentrated by removing water from it so that it could be stored and bleached more economically.


By this time, depending on the type of pulp being made, it had been between 3 1/2 and 5 hours since the chips had entered the pulp mill. 


All the Kraft pulp was then bleached. Bleaching took between 5 and 6 hours. It consisted of a three-step process in which (1) a mix of chlorine (Cl2 ) and chlorine dioxide (CIO2 ) was introduced to the pulp and the pulp was washed; (2) a patented mix of sodium hydroxide (NaOH), liquid oxygen, and hydrogen peroxide (H2 O2 ) was then added to the pulp and the pulp was again washed; and (3) chlorine dioxide (ClO2 ) was introduced and the pulp washed a final time. The result was like fluffy cream of wheat. By this time the pulp was nearly ready to be made into paper.


From the bleachery, the stock of pulp was held for a short time in storage (a maximum of 16 hours) and then proceeded through a series of blending operations that permitted a string of additives (for example, filler clay, resins, brighteners, alum, dyes) to be mixed into the pulp according to the recipe for the paper grade being produced. Here, too, “broke” (paper wastes from the mill itself) was recycled into the pulp. The pulp was then once again cleaned and blended into an even consistency before moving to the papermaking machine itself.


It made a difference whether the broke was of coated or uncoated paper, and whether it was white or colored. White, uncoated paper could be recycled immediately. Colored, uncoated paper had to be rebleached. Coated papers, because of the clays in them, could not be reclaimed.



The opposite of the underlined words in “Hardwood fibers are generally smaller and thinner and help smooth the paper and make it less porous.”, are:
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Q1780446 Inglês

Instructions: Question are based on the following text.


Source: http://languagemagazine.com/?page_id=124967

The word “therefore” (line 48) is
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Q1780443 Inglês

Instructions: Question are based on the following text.


Source: http://languagemagazine.com/?page_id=124967

The expression “be grounded in” (lines 37-38, 42 and 45) can be replaced, without changing the meaning in context, by:
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Q1776655 Inglês
There have been 18 opioid-related deaths in Nova Scotia so far this year 

    Paramedics in Nova Scotia used naloxone to save 165 people from opioid overdoses in 2018 and 188 people in 2019. In 2020, 102 people were saved as of July 31.
    Eight years ago, Matthew Bonn watched his friend turn blue and become deathly quiet as fentanyl flooded his body. Bonn jumped in, performing rescue breathing until paramedics arrived. That was the first time Bonn fought to keep someone alive during an overdose.
    But it wouldn't be his last. Over the years, he tried more dangerous ways to snap people out of an overdose.
   "I remember doing crazy things like throwing people in bathtubs, or, you know, giving them cocaine. As we know now, that doesn't help," said Bonn, a harm-reduction advocate in Halifax. "But ... in those panic modes, you try to do whatever you can to keep that person alive."
    This was before naloxone – a drug that can reverse an opioid overdose – became widely available to the public. In 2017, the Nova Scotia government made kits with the drug available for free at pharmacies.
    Whether used by community members or emergency crews, naloxone has helped save hundreds of lives in the province. Matthew Bonn is a program co-ordinator with the Canadian Association of People Who Use Drugs, and a current drug user himself. 
    Almost every other day in Nova Scotia, paramedics and medical first responders in the province use the drug to reverse an opioid overdose, according to Emergency Health Services (EHS).

(Available in: https://www.cbc.ca/news/canada/nova-scotia/ehs-naloxone-opioids-drug-use-emergency-care-1.5745907.)
In the text, the word “whether” underlined and in bold type can be replaced without losing its meaning by:
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Q1775313 Inglês



From Isaiah Berlin, The Roots of Romanticism. Princeton University Press: Princeton, New Jersey, 1999, pps. 2-3.

Considering the ideas and the vocabulary of the text, mark the following item as right (C) or wrong (E).
In lines 29 and 30, the words “doubt” and “folly” have the same meaning.
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Q1775311 Inglês



Gombrich, E. H. The Story of Art. Phaidon, 16th.

Ed. 1995. pp.65-6, with adaptations.

As far as vocabulary is concerned, mark the following item as right (C) or wrong (E).


The word “novel”, in “novel character” (line 37), means “fictional, not based on real life”.

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Q1775310 Inglês



Gombrich, E. H. The Story of Art. Phaidon, 16th.

Ed. 1995. pp.65-6, with adaptations.

As far as vocabulary is concerned, mark the following item as right (C) or wrong (E).


The fragment “after his god” (line 34) means “prostrated himself in front of the deity”.

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Q1775309 Inglês



Gombrich, E. H. The Story of Art. Phaidon, 16th.

Ed. 1995. pp.65-6, with adaptations.

As far as vocabulary is concerned, mark the following item as right (C) or wrong (E).


The expression “fall into place” (lines 2 and 3) means “to begin to make sense or to fit together”.

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Q1775306 Inglês



Gombrich, E. H. The Story of Art. Phaidon, 16th.

Ed. 1995. pp.65-6, with adaptations.

Based on the text, mark the following item as right (C) or wrong (E).


The fragment “shook the iron bars of the Egyptian style” (lines 26 and 27) means “to raise the required artistic standards further”.

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Q1775304 Inglês



Gombrich, E. H. The Story of Art. Phaidon, 16th.

Ed. 1995. pp.65-6, with adaptations.

Regarding the grammatical aspects of the text, mark the following item as right (C) or wrong (E).
“Granted” (line 23) is a word used to acknowledge that something is true, before something about it is said.
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Q1775299 Inglês



Stanzel, V. New Realities in Foreign Affairs: Diplomacy in the 21st Century. SWP Research Paper 2018, RP 11, November 2018,with adaptations.

Considering the vocabulary of the text, mark the following item as right (C) or wrong (E).
The word “-isms” in line 9 is a term often used to represent political ideologies and artistic movements.
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Q1775298 Inglês



Stanzel, V. New Realities in Foreign Affairs: Diplomacy in the 21st Century. SWP Research Paper 2018, RP 11, November 2018,with adaptations.

Considering the vocabulary of the text, mark the following item as right (C) or wrong (E).


In line 5, the expression “by and large” could be replaced with partially without changing the meaning of the sentence.

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Respostas
641: E
642: E
643: E
644: A
645: C
646: D
647: A
648: A
649: C
650: A
651: A
652: C
653: E
654: E
655: E
656: C
657: E
658: C
659: C
660: E