All India Electronics and Communication Engineering (ECE) Group

Two LTI systems in cascade form as shown in below figure-
If h1(n) = 3nu(n) and h2(n) = 3δ(n) – 3δ(n – 1) and If x(n) = sin(n) then output will be
  • a)
    3cos(n-1)
  • b)
    5sin(n/2)+3sin(n)
  • c)
    2sin(n)+5cos(n)
  • d)
    3sin(n)
Correct answer is option 'D'. Can you explain this answer?

Cstoppers Instructors answered  •  yesterday
Here two LTI systems are in cascaded form and the overall impulse response is-
h(n)=h2(n)*h1(n)=[ 3δ(n) – 3δ(n – 1)]* 3n u(n)
= 3n+1 u(n)- 3n+1 u(n-1)
= 3n+1 δ (n)
h(n)= 31 δ (n)
Since input is sin (n) hence output will be
h(n)*Sin (n)= 3δ (n)*sin(n)=3sin(n)
thus the band width gets reduced in a multi-stage amplifier.
Rahul Aggarwal asked a question

Direction: Read the following paragraph carefully and answer the question given below:
During the economic boom of the Roaring Twenties, the traditional values of rural America were challenged by the Jazz Age. The average American was busy buying automobiles and household appliances, and speculating in the stock market, where big money could be made. Those appliances were bought on credit, however. Although businesses have made huge gains — 65 percent — from the mechanization of manufacturing, the average worker’s wages had only increased 8 percent.
The imbalance between the rich and the poor, with 0.1 percent of society earning the same total income as 42 percent, combined with production of more and more goods and rising personal debt, could not be sustained. On Black Tuesday, October 29, 1929, the stock market crashed, triggering the Great Depression, the worst economic collapse in the history of the modern industrial world. It spread from the United States to the rest of the world, lasting from the end of 1929 until the early 1940s. With banks failing and businesses closing, more than 15 million Americans (one-quarter of the workforce) became unemployed.
President Herbert Hoover, underestimating the seriousness of the crisis, called it ‘a passing incident in our national lives,’ and assured Americans that it would be over in 60 days. A strong believer in rugged individualism, Hoover did not think the federal government should offer relief to the poverty-stricken population. Focusing on a trickle-down economic program to help finance businesses and banks, Hoover met with resistance from business executives who preferred to lay off workers. Blamed by many for the Great Depression, Hoover was widely ridiculed: an empty pocket turned inside out was called a ‘Hoover flag;’ the decrepit shantytowns springing up around the country were called ‘Hoovervilles.’
Franklin Delano Roosevelt, the rich governor from New York, offered Americans a New Deal, and was elected in a landslide victory in 1932. He took quick action to attack the Depression, declaring a four-day bank holiday, during which Congress passed the Emergency Banking Relief Act to stabilize the banking system. During the first 100 days of his administration, Roosevelt laid the groundwork for his New Deal remedies that would rescue the country from the depths of despair.
The New Deal programs created a liberal political alliance of labor unions, blacks and other minorities, some farmers and others receiving government relief, and intellectuals. The hardship brought on by the Depression affected Americans deeply. Since the prevailing attitude of the 1920s was that success was earned, it followed that failure was deserved. The unemployment brought on by the Depression caused self-blame and self-doubt. Men were harder hit psychologically than women were. Since men were expected to provide for their families, it was humiliating to have to ask for assistance. Although some argued that women should not be given jobs when many men were unemployed, the percentage of women working increased slightly during the Depression. Traditionally female fields of teaching and social services grew under New Deal programs. Children took on more responsibilities, sometimes finding work when their parents could not. As a result of living through the Depression, some people developed habits of careful saving and frugality, others determined to create a comfortable life for themselves.
African Americans suffered more than whites, since their jobs were often taken away from them and given to whites. In 1930, 50 percent of blacks were unemployed. However, Eleanor Roosevelt championed black rights, and New Deal programs prohibited discrimination. Discrimination continued in the South, however, as a result a large number of black voters switched from the Republican to the Democrat party during the Depression.
The Great Depression and the New Deal changed forever the relationship between Americans and their government. Government involvement and responsibility in caring for the needy and regulating the economy came to be expected.
Which of the following sections of the American society were most affected by the Great Depression?
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Arnav Mathur asked a question

Direction: Read the following paragraph carefully and answer the question given below:
During the economic boom of the Roaring Twenties, the traditional values of rural America were challenged by the Jazz Age. The average American was busy buying automobiles and household appliances, and speculating in the stock market, where big money could be made. Those appliances were bought on credit, however. Although businesses have made huge gains — 65 percent — from the mechanization of manufacturing, the average worker’s wages had only increased 8 percent.
The imbalance between the rich and the poor, with 0.1 percent of society earning the same total income as 42 percent, combined with production of more and more goods and rising personal debt, could not be sustained. On Black Tuesday, October 29, 1929, the stock market crashed, triggering the Great Depression, the worst economic collapse in the history of the modern industrial world. It spread from the United States to the rest of the world, lasting from the end of 1929 until the early 1940s. With banks failing and businesses closing, more than 15 million Americans (one-quarter of the workforce) became unemployed.
President Herbert Hoover, underestimating the seriousness of the crisis, called it ‘a passing incident in our national lives,’ and assured Americans that it would be over in 60 days. A strong believer in rugged individualism, Hoover did not think the federal government should offer relief to the poverty-stricken population. Focusing on a trickle-down economic program to help finance businesses and banks, Hoover met with resistance from business executives who preferred to lay off workers. Blamed by many for the Great Depression, Hoover was widely ridiculed: an empty pocket turned inside out was called a ‘Hoover flag;’ the decrepit shantytowns springing up around the country were called ‘Hoovervilles.’
Franklin Delano Roosevelt, the rich governor from New York, offered Americans a New Deal, and was elected in a landslide victory in 1932. He took quick action to attack the Depression, declaring a four-day bank holiday, during which Congress passed the Emergency Banking Relief Act to stabilize the banking system. During the first 100 days of his administration, Roosevelt laid the groundwork for his New Deal remedies that would rescue the country from the depths of despair.
The New Deal programs created a liberal political alliance of labor unions, blacks and other minorities, some farmers and others receiving government relief, and intellectuals. The hardship brought on by the Depression affected Americans deeply. Since the prevailing attitude of the 1920s was that success was earned, it followed that failure was deserved. The unemployment brought on by the Depression caused self-blame and self-doubt. Men were harder hit psychologically than women were. Since men were expected to provide for their families, it was humiliating to have to ask for assistance. Although some argued that women should not be given jobs when many men were unemployed, the percentage of women working increased slightly during the Depression. Traditionally female fields of teaching and social services grew under New Deal programs. Children took on more responsibilities, sometimes finding work when their parents could not. As a result of living through the Depression, some people developed habits of careful saving and frugality, others determined to create a comfortable life for themselves.
African Americans suffered more than whites, since their jobs were often taken away from them and given to whites. In 1930, 50 percent of blacks were unemployed. However, Eleanor Roosevelt championed black rights, and New Deal programs prohibited discrimination. Discrimination continued in the South, however, as a result a large number of black voters switched from the Republican to the Democrat party during the Depression.
The Great Depression and the New Deal changed forever the relationship between Americans and their government. Government involvement and responsibility in caring for the needy and regulating the economy came to be expected.
What was the change in worker’s wages after mechanization of manufacturing?
... more

Jatin Khanna asked a question

Direction: Read the following paragraph carefully and answer the question given below:
In the decades following World War II, American business had undisputed control of the world economy, producing goods of such high quality and low cost that foreign corporations were unable to compete. But in the mid-1960s the United States began to lose its advantage and by the 1980s American corporations lagged behind the competition in many industries. In the computer chip industry, for example, American corporations had lost most of both domestic and foreign markets by the early 1980s. The first analysts to examine the decline of American business blamed the U.S. government. They argued that stringent governmental restrictions on the behaviour of American corporations, combined with the wholehearted support given to foreign firms by their governments, created and environment in which American products could not compete. Later analysts blamed predatory corporate raiders who bought corporations, not to make them more competitive in the face of foreign competition, but rather to sell off the most lucrative divisions for huge profits. Still later analysts blamed the American workforce, citing labour demands and poor productivity as the reasons American corporations have been unable to compete with Japanese and European firms. Finally, a few analysts even censured American consumers for their unpatriotic purchases of foreign goods. The blame actually lies with corporate management, which has made serious errors based on misconceptions about what it takes to be successful in the marketplace. These missteps involve labour costs, production choices, and growth strategies. Even though labour costs typically account for less than 15% of a product‘s total cost, management has been quick to blame the costs of workers‘ wages for driving up prices, making American goods uncompetitive. As a result of attempts to minimize the cost of wages, American corporations have had trouble recruiting and retaining skilled workers. The emphasis on cost minimization has also led to another blunder: an over-concentration on high technology products. Many foreign firms began by specializing in the mass production and sale of low technology products, gaining valuable experience and earning tremendous profits. Later, these corporations were able to break into high technology markets without much trouble; they simply applied their previous manufacturing experience and ample financial resources to the production of higher quality goods. American business has consistently ignored this very sensible approach. The recent rash of corporate mergers and acquisitions in the U.S. has not helped the situation either. While American firms have neglected long-range planning and production, preferring instead to reap fast profits through mergers and acquisitions, foreign firms have been quick to exploit opportunities to ensure their domination over future markets by investing in the streamlining and modernization of their facilities.
Which of the following best encapsulates the primary reason for the decline of American business competitiveness according to the passage?
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Lucas Thompson asked a question

Direction: Read the following paragraph carefully and answer the question given below:
In the decades following World War II, American business had undisputed control of the world economy, producing goods of such high quality and low cost that foreign corporations were unable to compete. But in the mid-1960s the United States began to lose its advantage and by the 1980s American corporations lagged behind the competition in many industries. In the computer chip industry, for example, American corporations had lost most of both domestic and foreign markets by the early 1980s.
The first analysts to examine the decline of American business blamed the U.S. government. They argued that stringent governmental restrictions on the behaviour of American corporations, combined with the wholehearted support given to foreign firms by their governments, created and environment in which American products could not compete. Later analysts blamed predatory corporate raiders who bought corporations, not to make them more competitive in the face of foreign competition, but rather to sell off the most lucrative divisions for huge profits.
Still later analysts blamed the American workforce, citing labour demands and poor productivity as the reasons American corporations have been unable to compete with Japanese and European firms. Finally, a few analysts even censured American consumers for their unpatriotic purchases of foreign goods. The blame actually lies with corporate management, which has made serious errors based on misconceptions about what it takes to be successful in the marketplace.
These missteps involve labour costs, production choices, and growth strategies. Even though labour costs typically account for less than 15% of a product‘s total cost, management has been quick to blame the costs of workers‘ wages for driving up prices, making American goods uncompetitive. As a result of attempts to minimize the cost of wages, American corporations have had trouble recruiting and retaining skilled workers.
The emphasis on cost minimization has also led to another blunder: an over-concentration on high technology products. Many foreign firms began by specializing in the mass production and sale of low technology products, gaining valuable experience and earning tremendous profits. Later, these corporations were able to break into high technology markets without much trouble; they simply applied their previous manufacturing experience and ample financial resources to the production of higher quality goods. American business has consistently ignored this very sensible approach.
The recent rash of corporate mergers and acquisitions in the U.S. has not helped the situation either. While American firms have neglected long-range planning and production, preferring instead to reap fast profits through mergers and acquisitions, foreign firms have been quick to exploit opportunities to ensure their domination over future markets by investing in the streamlining and modernization of their facilities.
Which of the following would most weaken the author‘s argument about the over-concentration on high technology products?  
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Sanket Joshi asked a question

Direction: Read the following paragraph carefully and answer the question given below:
In the decades following World War II, American business had undisputed control of the world economy, producing goods of such high quality and low cost that foreign corporations were unable to compete. But in the mid-1960s the United States began to lose its advantage and by the 1980s American corporations lagged behind the competition in many industries. In the computer chip industry, for example, American corporations had lost most of both domestic and foreign markets by the early 1980s.
The first analysts to examine the decline of American business blamed the U.S. government. They argued that stringent governmental restrictions on the behaviour of American corporations, combined with the wholehearted support given to foreign firms by their governments, created and environment in which American products could not compete. Later analysts blamed predatory corporate raiders who bought corporations, not to make them more competitive in the face of foreign competition, but rather to sell off the most lucrative divisions for huge profits.
Still later analysts blamed the American workforce, citing labour demands and poor productivity as the reasons American corporations have been unable to compete with Japanese and European firms. Finally, a few analysts even censured American consumers for their unpatriotic purchases of foreign goods. The blame actually lies with corporate management, which has made serious errors based on misconceptions about what it takes to be successful in the marketplace.
These missteps involve labour costs, production choices, and growth strategies. Even though labour costs typically account for less than 15% of a product‘s total cost, management has been quick to blame the costs of workers‘ wages for driving up prices, making American goods uncompetitive. As a result of attempts to minimize the cost of wages, American corporations have had trouble recruiting and retaining skilled workers.
The emphasis on cost minimization has also led to another blunder: an over-concentration on high technology products. Many foreign firms began by specializing in the mass production and sale of low technology products, gaining valuable experience and earning tremendous profits. Later, these corporations were able to break into high technology markets without much trouble; they simply applied their previous manufacturing experience and ample financial resources to the production of higher quality goods. American business has consistently ignored this very sensible approach.
The recent rash of corporate mergers and acquisitions in the U.S. has not helped the situation either. While American firms have neglected long-range planning and production, preferring instead to reap fast profits through mergers and acquisitions, foreign firms have been quick to exploit opportunities to ensure their domination over future markets by investing in the streamlining and modernization of their facilities. 
With which of the following general statements would the author most likely NOT agree?
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Rajiv Mehra asked a question

Direction: Read the following paragraph carefully and answer the question given below:
In the decades following World War II, American business had undisputed control of the world economy, producing goods of such high quality and low cost that foreign corporations were unable to compete. But in the mid-1960s the United States began to lose its advantage and by the 1980s American corporations lagged behind the competition in many industries. In the computer chip industry, for example, American corporations had lost most of both domestic and foreign markets by the early 1980s.
The first analysts to examine the decline of American business blamed the U.S. government. They argued that stringent governmental restrictions on the behaviour of American corporations, combined with the wholehearted support given to foreign firms by their governments, created and environment in which American products could not compete. Later analysts blamed predatory corporate raiders who bought corporations, not to make them more competitive in the face of foreign competition, but rather to sell off the most lucrative divisions for huge profits.
Still later analysts blamed the American workforce, citing labour demands and poor productivity as the reasons American corporations have been unable to compete with Japanese and European firms. Finally, a few analysts even censured American consumers for their unpatriotic purchases of foreign goods. The blame actually lies with corporate management, which has made serious errors based on misconceptions about what it takes to be successful in the marketplace.
These missteps involve labour costs, production choices, and growth strategies. Even though labour costs typically account for less than 15% of a product‘s total cost, management has been quick to blame the costs of workers‘ wages for driving up prices, making American goods uncompetitive. As a result of attempts to minimize the cost of wages, American corporations have had trouble recruiting and retaining skilled workers.
The emphasis on cost minimization has also led to another blunder: an over-concentration on high technology products. Many foreign firms began by specializing in the mass production and sale of low technology products, gaining valuable experience and earning tremendous profits. Later, these corporations were able to break into high technology markets without much trouble; they simply applied their previous manufacturing experience and ample financial resources to the production of higher quality goods.
American business has consistently ignored this very sensible approach.  The recent rash of corporate mergers and acquisitions in the U.S. has not helped the situation either. While American firms have neglected long-range planning and production, preferring instead to reap fast profits through mergers and acquisitions, foreign firms have been quick to exploit opportunities to ensure their domination over future markets by investing in the streamlining and modernization of their facilities.
The passage suggests that compared to Japanese workers, American workers are often considered:  
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Isabella Sanchez asked a question

Direction: Read the following paragraph carefully and answer the question given below:
Suspicious as they are of American intentions, and bolstered by court rulings that seem to give them license to seek out and publish any and all government secrets, the media‘s distrust of our government, combined with their limited understanding of the world at large, damages our ability to design and conduct good policy in ways that the media rarely imagine.
The leak through which sensitive information flows from the government to the press is detrimental to policy in so far as it almost completely precludes the possibility of serious discussion. The fear that anything they say, even in what is construed as a private forum, may appear in print, makes many people, whether our own government officials or the leaders of foreign countries, unwilling to speak their minds.
Must we be content with the restriction of our leaders‘ policy discussions to a handful of people who trust each other, thus limiting the richness and variety of ideas that could be brought forward through a larger group because of the nearly endemic nature of this problem? It is vitally important for the leaders of the United States to know the real state of affairs internationally, and this can occur only if foreign leaders feel free to speak their minds to our diplomats.
Until recently, it looked as if the media had convinced the public that journalists were more reliable than the government; however, this may be changing. With the passage of time, the media have lost lustre. They—having grown large and powerful—provoke the same public skepticism that other large institutions in the society do. A series of media scandals has contributed to this. Many Americans have concluded that the media are no more credible than the government, and public opinion surveys reflect much ambivalence about the press.
While leaks are generally defended by media officials on the grounds of the public‘s ―right to know, in reality they are part of the Washington political power game, as well as part of the policy process. The "leaker" may be currying favour with the media, or maybe planting information to influence policy. In the first case, he is helping himself by enhancing the prestige of a journalist; in the second, he is using the media as a stage for his preferred policies. In either instance, it closes the circle: the leak begins with a political motive, is advanced by a politicized media, and continues because of politics. Although some of the journalists think they are doing the work, they are more often than not instruments of the process, not prime movers. The media must be held accountable for their activities, just like every other significant institution in our society, and the media must be forced to earn the public‘s trust.
Based on the passage, when the media now challenge the actions of a public official, the public assumes that:  
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Caleb Phillips asked a question

Direction: Read the following paragraph carefully and answer the question given below:
Suspicious as they are of American intentions, and bolstered by court rulings that seem to give them license to seek out and publish any and all government secrets, the media‘s distrust of our government, combined with their limited understanding of the world at large, damages our ability to design and conduct good policy in ways that the media rarely imagine.
The leak through which sensitive information flows from the government to the press is detrimental to policy in so far as it almost completely precludes the possibility of serious discussion. The fear that anything they say, even in what is construed as a private forum, may appear in print, makes many people, whether our own government officials or the leaders of foreign countries, unwilling to speak their minds.
Must we be content with the restriction of our leaders‘ policy discussions to a handful of people who trust each other, thus limiting the richness and variety of ideas that could be brought forward through a larger group because of the nearly endemic nature of this problem? It is vitally important for the leaders of the United States to know the real state of affairs internationally, and this can occur only if foreign leaders feel free to speak their minds to our diplomats.
Until recently, it looked as if the media had convinced the public that journalists were more reliable than the government; however, this may be changing. With the passage of time, the media have lost lustre. They—having grown large and powerful—provoke the same public skepticism that other large institutions in the society do. A series of media scandals has contributed to this. Many Americans have concluded that the media are no more credible than the government, and public opinion surveys reflect much ambivalence about the press.
While leaks are generally defended by media officials on the grounds of the public‘s ―right to know, in reality they are part of the Washington political power game, as well as part of the policy process. The "leaker" may be currying favour with the media, or may be planting information to influence policy. In the first case, he is helping himself by enhancing the prestige of a journalist; in the second, he is using the media as a stage for his preferred policies. In either instance, it closes the circle: the leak begins with a political motive, is advanced by a politicized media, and continues because of politics. Although some of the journalists think they are doing the work, they are more often than not instruments of the process, not prime movers. The media must be held accountable for their activities, just like every other significant institution in our society, and the media must be forced to earn the public‘s trust. 
What is the main idea of the passage?  
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Kunal Kapoor asked a question

Direction: Read the following paragraph carefully and answer the question given below:
Suspicious as they are of American intentions, and bolstered by court rulings that seem to give them license to seek out and publish any and all government secrets, the media‘s distrust of our government, combined with their limited understanding of the world at large, damages our ability to design and conduct good policy in ways that the media rarely imagine.
The leak through which sensitive information flows from the government to the press is detrimental to policy in so far as it almost completely precludes the possibility of serious discussion. The fear that anything they say, even in what is construed as a private forum, may appear in print, makes many people, whether our own government officials or the leaders of foreign countries, unwilling to speak their minds.
Must we be content with the restriction of our leaders‘ policy discussions to a handful of people who trust each other, thus limiting the richness and variety of ideas that could be brought forward through a larger group because of the nearly endemic nature of this problem? It is vitally important for the leaders of the United States to know the real state of affairs internationally, and this can occur only if foreign leaders feel free to speak their minds to our diplomats.
Until recently, it looked as if the media had convinced the public that journalists were more reliable than the government; however, this may be changing. With the passage of time, the media have lost lustre. They—having grown large and powerful—provoke the same public skepticism that other large institutions in the society do. A series of media scandals has contributed to this. Many Americans have concluded that the media are no more credible than the government, and public opinion surveys reflect much ambivalence about the press.
While leaks are generally defended by media officials on the grounds of the public‘s ―right to know, in reality they are part of the Washington political power game, as well as part of the policy process. The "leaker" may be currying favour with the media, or may be planting information to influence policy. In the first case, he is helping himself by enhancing the prestige of a journalist; in the second, he is using the media as a stage for his preferred policies. In either instance, it closes the circle: the leak begins with a political motive, is advanced by a politicized media, and continues because of politics. Although some of the journalists think they are doing the work, they are more often than not instruments of the process, not prime movers. The media must be held accountable for their activities, just like every other significant institution in our society, and the media must be forced to earn the public‘s trust. 
Implicit in the author‘s argument that leaks result in far more limited and unreliable policy discussions with foreign leaders is the idea that:  
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Gaurav Gupta asked a question

Direction: Read the following paragraph carefully and answer the question given below:
Suspicious as they are of American intentions, and bolstered by court rulings that seem to give them license to seek out and publish any and all government secrets, the media‘s distrust of our government, combined with their limited understanding of the world at large, damages our ability to design and conduct good policy in ways that the media rarely imagine.
The leak through which sensitive information flows from the government to the press is detrimental to policy in so far as it almost completely precludes the possibility of serious discussion. The fear that anything they say, even in what is construed as a private forum, may appear in print, makes many people, whether our own government officials or the leaders of foreign countries, unwilling to speak their minds.
Must we be content with the restriction of our leaders‘ policy discussions to a handful of people who trust each other, thus limiting the richness and variety of ideas that could be brought forward through a larger group because of the nearly endemic nature of this problem? It is vitally important for the leaders of the United States to know the real state of affairs internationally, and this can occur only if foreign leaders feel free to speak their minds to our diplomats.
Until recently, it looked as if the media had convinced the public that journalists were more reliable than the government; however, this may be changing. With the passage of time, the media have lost lustre. They—having grown large and powerful—provoke the same public skepticism that other large institutions in the society do. A series of media scandals has contributed to this. Many Americans have concluded that the media are no more credible than the government, and public opinion surveys reflect much ambivalence about the press.
While leaks are generally defended by media officials on the grounds of the public‘s ―right to know,in reality they are part of the Washington political power game, as well as part of the policy process. The "leaker" may be currying favour with the media, or may be planting information to influence policy. In the first case, he is helping himself by enhancing the prestige of a journalist; in the second, he is using the media as a stage for his preferred policies. In either instance, it closes the circle: the leak begins with a political motive, is advanced by a politicized media, and continues because of politics. Although some of the journalists think they are doing the work, they are more often than not instruments of the process, not prime movers. The media must be held accountable for their activities, just like every other significant institution in our society, and the media must be forced to earn the public‘s trust.
Based on the information in the passage, with which of the following statements would the author most likely disagree? 
... more

Gauri Krishnan asked a question

Direction: Read the following paragraph carefully and answer the question given below:
Henry Varnum Poor, editor of American Railroad Journal, drew the important elements of the image of the railroad together in 1851, ―Look at the results of this material progress, the vigor, life, and executive energy that followed in its train, rapidly succeeded by wealth, the refinement and intellectual culture of a high civilization. All this is typified, in a degree, by a locomotive. The combination in its construction of nice art and scientific application of power, its speed surpassing that of our proudest courser, and its immense strength, are all characteristic of our age and tendencies. To us, like the telegraph, it is essential, it constitutes a part of our nature, is a condition of our being what we are.
In the third decade of the nineteenth century, Americans began to define their character in light of the new railroads. They liked the idea that it took special people to foresee and capitalize on the promise of science. Railroad promoters, using the steam engine as a metaphor for what they thought Americans were and what they thought Americans were becoming, frequently discussed parallels between the locomotive and national character, pointing out that both possessed youth, power, speed, single-mindedness, and bright prospects.
Poor was, of course, promoting acceptance of railroads and enticing his readers to open their pocketbooks. But his metaphors had their dark side. A locomotive was quite unlike anything Americans had ever seen. It was large, mysterious and dangerous; many thought that it was a monster waiting to devour the unwary. There was a suspicion that a country founded upon Jeffersonian agrarian principles had bought a ticket and boarded a train pulled by some iron monster into the dark recesses of an unknown future.
To ease such public apprehensions, promoters, poets, editors, and writers alike adopted the notion that locomotives were really only ―iron horses,‖ an early metaphor that lingered because it made steam technology ordinary and understandable. Iron horse metaphors assuaged fears about inherent defects in the national character, prompting images of a more secure future, and made an alien technology less frightening, and even comforting and congenial.
Essayist Ralph Waldo Emerson saw the locomotive as an agent of domestic harmony. He observed that ―the locomotive and the steamboat, like enormous shuttles, shoot every day across the thousand various threads of national descent and employment and bind them fast in one web,"adding ―an hourly assimilation goes forward, and there is no danger that local peculiarities and hostilities should be preserved. To us Americans, it seems to have fallen as a political aid. We could not else have held the vast North America together, which we now engage to do."
Suppose that an early nineteenth-century American inventor had developed a device that made it easier to construct multi-story building. How would early nineteenth-century Americans be expected to react to this invention?  
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Camila Rodriguez asked a question

Direction: Read the following paragraph carefully and answer the question given below:
Henry Varnum Poor, editor of American Railroad Journal, drew the important elements of the image of the railroad together in 1851, ―Look at the results of this material progress, the vigor, life, and executive energy that followed in its train, rapidly succeeded by wealth, the refinement and intellectual culture of a high civilization. All this is typified, in a degree, by a locomotive. The combination in its construction of nice art and scientific application of power, its speed surpassing that of our proudest courser, and its immense strength, are all characteristic of our age and tendencies. To us, like the telegraph, it is essential, it constitutes a part of our nature, is a condition of our being what we are.
In the third decade of the nineteenth century, Americans began to define their character in light of the new railroads. They liked the idea that it took special people to foresee and capitalize on the promise of science. Railroad promoters, using the steam engine as a metaphor for what they thought Americans were and what they thought Americans were becoming, frequently discussed parallels between the locomotive and national character, pointing out that both possessed youth, power, speed, single-mindedness, and bright prospects.
Poor was, of course, promoting acceptance of railroads and enticing his readers to open their pocketbooks. But his metaphors had their dark side. A locomotive was quite unlike anything Americans had ever seen. It was large, mysterious and dangerous; many thought that it was a monster waiting to devour the unwary. There was a suspicion that a country founded upon Jeffersonian agrarian principles had bought a ticket and boarded a train pulled by some iron monster into the dark recesses of an unknown future.
To ease such public apprehensions, promoters, poets, editors, and writers alike adopted the notion that locomotives were really only ―iron horses,‖ an early metaphor that lingered because it made steam technology ordinary and understandable. Iron horse metaphors assuaged fears about inherent defects in the national character, prompting images of a more secure future, and made an alien technology less frightening, and even comforting and congenial.
Essayist Ralph Waldo Emerson saw the locomotive as an agent of domestic harmony. He observed that ―the locomotive and the steamboat, like enormous shuttles, shoot every day across the thousand various threads of national descent and employment and bind them fast in one web,"adding ―an hourly assimilation goes forward, and there is no danger that local peculiarities and hostilities should be preserved. To us Americans, it seems to have fallen as a political aid. We could not else have held the vast North America together, which we now engage to do."
According to the passage, which of the following is most likely to be true about Ralph Waldo Emerson‘s beliefs? 
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Gabriella Thompson asked a question

Direction: Read the following paragraph carefully and answer the question given below:
Henry Varnum Poor, editor of American Railroad Journal, drew the important elements of the image of the railroad together in 1851, ―Look at the results of this material progress, the vigor, life, and executive energy that followed in its train, rapidly succeeded by wealth, the refinement and intellectual culture of a high civilization. All this is typified, in a degree, by a locomotive. The combination in its construction of nice art and scientific application of power, its speed surpassing that of our proudest courser, and its immense strength, are all characteristic of our age and tendencies. To us, like the telegraph, it is essential, it constitutes a part of our nature, is a condition of our being what we are.
In the third decade of the nineteenth century, Americans began to define their character in light of the new railroads. They liked the idea that it took special people to foresee and capitalize on the promise of science. Railroad promoters, using the steam engine as a metaphor for what they thought Americans were and what they thought Americans were becoming, frequently discussed parallels between the locomotive and national character, pointing out that both possessed youth, power, speed, single-mindedness, and bright prospects.
Poor was, of course, promoting acceptance of railroads and enticing his readers to open their pocketbooks. But his metaphors had their dark side. A locomotive was quite unlike anything Americans had ever seen. It was large, mysterious and dangerous; many thought that it was a monster waiting to devour the unwary. There was a suspicion that a country founded upon Jeffersonian agrarian principles had bought a ticket and boarded a train pulled by some iron monster into the dark recesses of an unknown future.
To ease such public apprehensions, promoters, poets, editors, and writers alike adopted the notion that locomotives were really only ―iron horses,‖ an early metaphor that lingered because it made steam technology ordinary and understandable. Iron horse metaphors assuaged fears about inherent defects in the national character, prompting images of a more secure future, and made an alien technology less frightening, and even comforting and congenial.
Essayist Ralph Waldo Emerson saw the locomotive as an agent of domestic harmony. He observed that ―the locomotive and the steamboat, like enormous shuttles, shoot every day across the thousand various threads of national descent and employment and bind them fast in one web, "adding ―an hourly assimilation goes forward, and there is no danger that local peculiarities and hostilities should be preserved. To us Americans, it seems to have fallen as a political aid. We could not else have held the vast North America together, which we now engage to do"
The passage is primarily concerned with which of the following? 
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Neha Datta asked a question

Direction: Read the following paragraph carefully and answer the question given below:
Henry Varnum Poor, editor of American Railroad Journal, drew the important elements of the image of the railroad together in 1851, ―Look at the results of this material progress, the vigor, life, and executive energy that followed in its train, rapidly succeeded by wealth, the refinement and intellectual culture of a high civilization. All this is typified, in a degree, by a locomotive. The combination in its construction of nice art and scientific application of power, its speed surpassing that of our proudest courser, and its immense strength, are all characteristic of our age and tendencies. To us, like the telegraph, it is essential, it constitutes a part of our nature, is a condition of our being what we are.
In the third decade of the nineteenth century, Americans began to define their character in light of the new railroads. They liked the idea that it took special people to foresee and capitalize on the promise of science. Railroad promoters, using the steam engine as a metaphor for what they thought Americans were and what they thought Americans were becoming, frequently discussed parallels between the locomotive and national character, pointing out that both possessed youth, power, speed, single-mindedness, and bright prospects.
Poor was, of course, promoting acceptance of railroads and enticing his readers to open their pocketbooks. But his metaphors had their dark side. A locomotive was quite unlike anything Americans had ever seen. It was large, mysterious and dangerous; many thought that it was a monster waiting to devour the unwary. There was a suspicion that a country founded upon Jeffersonian agrarian principles had bought a ticket and boarded a train pulled by some iron monster into the dark recesses of an unknown future.
To ease such public apprehensions, promoters, poets, editors, and writers alike adopted the notion that locomotives were really only ―iron horses, an early metaphor that lingered because it made steam technology ordinary and understandable. Iron horse metaphors assuaged fears about inherent defects in the national character, prompting images of a more secure future, and made an alien technology less frightening, and even comforting and congenial.
Essayist Ralph Waldo Emerson saw the locomotive as an agent of domestic harmony. He observed that ―the locomotive and the steamboat, like enormous shuttles, shoot every day across the thousand various threads of national descent and employment and bind them fast in one web, adding ―an hourly assimilation goes forward, and there is no danger that local peculiarities and hostilities should be preserved. To us Americans, it seems to have fallen as a political aid. We could not else have held the vast North America together, which we now engage to do.
Which of the following claims would the author of the passage most agree with? 
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Oliver Hall asked a question

Direction: Read the following paragraph carefully and answer the question given below:
Once surrounded and protected by vast wilderness, many of the national parks are adversely affected by activities outside their boundaries. The National Park Organic Act established the national park system and empowered the Secretary of the Interior to manage activities within the parks. Conditions outside park boundaries are not subject to regulation by the Park Service unless they involve the direct use of park resources.
Several approaches to protecting the national parks from external degradation have been proposed, such as one focusing on enacting federal legislation granting the National Park Service broader powers over lands adjacent to the national parks. Legislation addressing external threats to the national parks twice passed the House of Representatives but died without action in the Senate. Also brought to the table as a possible remedy is giving the states bordering the parks a significant and meaningful role in developing federal park management policy.
Because the livelihood of many citizens is linked to the management of national parks, local politicians often encourage state involvement in federal planning. But, state legislatures have not always addressed the fundamental policy issues of whether states should protect park wildlife.
Timber harvesting, ranching and energy exploration compete with wildlife within the local ecosystem. Priorities among different land uses are not generally established by current legislation. Additionally, often no mechanism exists to coordinate planning by the state environmental regulatory agencies. These factors limit the impact of legislation aimed at protecting park wildlife and the larger park ecosystem.
Even if these deficiencies can be overcome, state participation must be consistent with existing federal legislation. States lack jurisdiction within national parks themselves, and therefore state solutions cannot reach activities inside the parks, thus limiting state action to the land adjacent to the national parks. Under the supremacy clause, federal laws and regulations supersede state action if state law conflicts with federal legislation, if Congress precludes local regulation, or if federal regulation is so pervasive that no room remains for state control. Assuming that federal regulations leave open the possibility of state control, state participation in policy making must be harmonized with existing federal legislation.
The residents of states bordering national parks are affected by park management policies. They in turn affect the success of those policies. This interrelationship must be considered in responding to the external threats problem. Local participation is necessary in deciding how to protect park wildlife. Local interests should not, however, dictate national policy, nor should they be used as a pretext to ignore the threats to park regions.
According to the passage, which of the following developments is most likely if environmental cooperation between the federal government and state governments does not improve? 
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Evelyn Wright asked a question

Direction: Read the following paragraph carefully and answer the question given below:
Once surrounded and protected by vast wilderness, many of the national parks are adversely affected by activities outside their boundaries. The National Park Organic Act established the national park system and empowered the Secretary of the Interior to manage activities within the parks. Conditions outside park boundaries are not subject to regulation by the Park Service unless they involve the direct use of park resources.
Several approaches to protecting the national parks from external degradation have been proposed, such as one focusing on enacting federal legislation granting the National Park Service broader powers over lands adjacent to the national parks. Legislation addressing external threats to the national parks twice passed the House of Representatives but died without action in the Senate. Also brought to the table as a possible remedy is giving the states bordering the parks a significant and meaningful role in developing federal park management policy.
Because the livelihood of many citizens is linked to the management of national parks, local politicians often encourage state involvement in federal planning. But, state legislatures have not always addressed the fundamental policy issues of whether states should protect park wildlife.
Timber harvesting, ranching and energy exploration compete with wildlife within the local ecosystem. Priorities among different land uses are not generally established by current legislation. Additionally, often no mechanism exists to coordinate planning by the state environmental regulatory agencies. These factors limit the impact of legislation aimed at protecting park wildlife and the larger park ecosystem.
Even if these deficiencies can be overcome, state participation must be consistent with existing federal legislation. States lack jurisdiction within national parks themselves, and therefore state solutions cannot reach activities inside the parks, thus limiting state action to the land adjacent to the national parks. Under the supremacy clause, federal laws and regulations supersede state action if state law conflicts with federal legislation, if Congress precludes local regulation, or if federal regulation is so pervasive that no room remains for state control. Assuming that federal regulations leave open the possibility of state control, state participation in policy making must be harmonized with existing federal legislation.
The residents of states bordering national parks are affected by park management policies. They in turn affect the success of those policies. This interrelationship must be considered in responding to the external threats problem. Local participation is necessary in deciding how to protect park wildlife. Local interests should not, however, dictate national policy, nor should they be used as a pretext to ignore the threats to park regions.
In the context of the passage, the phrase external degradation (lines 8-9) refers to which of the following:  
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Isha Kaur asked a question

Direction: Read the following paragraph carefully and answer the question given below:
Once surrounded and protected by vast wilderness, many of the national parks are adversely affected by activities outside their boundaries. The National Park Organic Act established the national park system and empowered the Secretary of the Interior to manage activities within the parks. Conditions outside park boundaries are not subject to regulation by the Park Service unless they involve the direct use of park resources.
Several approaches to protecting the national parks from external degradation have been proposed, such as one focusing on enacting federal legislation granting the National Park Service broader powers over lands adjacent to the national parks. Legislation addressing external threats to the national parks twice passed the House of Representatives but died without action in the Senate. Also brought to the table as a possible remedy is giving the states bordering the parks a significant and meaningful role in developing federal park management policy.
Because the livelihood of many citizens is linked to the management of national parks, local politicians often encourage state involvement in federal planning. But, state legislatures have not always addressed the fundamental policy issues of whether states should protect park wildlife.
Timber harvesting, ranching and energy exploration compete with wildlife within the local ecosystem. Priorities among different land uses are not generally established by current legislation. Additionally, often no mechanism exists to coordinate planning by the state environmental regulatory agencies. These factors limit the impact of legislation aimed at protecting park wildlife and the larger park ecosystem.
Even if these deficiencies can be overcome, state participation must be consistent with existing federal legislation. States lack jurisdiction within national parks themselves, and therefore state solutions cannot reach activities inside the parks, thus limiting state action to the land adjacent to the national parks. Under the supremacy clause, federal laws and regulations supersede state action if state law conflicts with federal legislation, if Congress precludes local regulation, or if federal regulation is so pervasive that no room remains for state control. Assuming that federal regulations leave open the possibility of state control, state participation in policy making must be harmonized with existing federal legislation.
The residents of states bordering national parks are affected by park management policies. They in turn affect the success of those policies. This interrelationship must be considered in responding to the external threats problem. Local participation is necessary in deciding how to protect park wildlife. Local interests should not, however, dictate national policy, nor should they be used as a pretext to ignore the threats to park regions.
The passage provides support for which of the following assertions? 
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Maheshwar Shah asked a question

Direction: Read the following paragraph carefully and answer the question given below:
Once surrounded and protected by vast wilderness, many of the national parks are adversely affected by activities outside their boundaries. The National Park Organic Act established the national park system and empowered the Secretary of the Interior to manage activities within the parks. Conditions outside park boundaries are not subject to regulation by the Park Service unless they involve the direct use of park resources.
Several approaches to protecting the national parks from external degradation have been proposed, such as one focusing on enacting federal legislation granting the National Park Service broader powers over lands adjacent to the national parks. Legislation addressing external threats to the national parks twice passed the House of Representatives but died without action in the Senate. Also brought to the table as a possible remedy is giving the states bordering the parks a significant and meaningful role in developing federal park management policy.
Because the livelihood of many citizens is linked to the management of national parks, local politicians often encourage state involvement in federal planning. But, state legislatures have not always addressed the fundamental policy issues of whether states should protect park wildlife.
Timber harvesting, ranching and energy exploration compete with wildlife within the local ecosystem. Priorities among different land uses are not generally established by current legislation. Additionally, often no mechanism exists to coordinate planning by the state environmental regulatory agencies. These factors limit the impact of legislation aimed at protecting park wildlife and the larger park ecosystem.
Even if these deficiencies can be overcome, state participation must be consistent with existing federal legislation. States lack jurisdiction within national parks themselves, and therefore state solutions cannot reach activities inside the parks, thus limiting state action to the land adjacent to the national parks. Under the supremacy clause, federal laws and regulations supersede state action if state law conflicts with federal legislation, if Congress precludes local regulation, or if federal regulation is so pervasive that no room remains for state control. Assuming that federal regulations leave open the possibility of state control, state participation in policy making must be harmonized with existing federal legislation.
The residents of states bordering national parks are affected by park management policies. They in turn affect the success of those policies. This interrelationship must be considered in responding to the external threats problem. Local participation is necessary in deciding how to protect park wildlife. Local interests should not, however, dictate national policy, nor should they be used as a pretext to ignore the threats to park regions. 
What is the main purpose of the author in writing the passage? 
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Wasima Thakur asked a question

The passage below is accompanied by four questions. Based on the passage, choose the best answer for each question.
Over the past four centuries liberalism has been so successful that it has driven all its opponents off the battlefield. Now it is disintegrating, destroyed by a mix of hubris and internal contradictions, according to Patrick Deneen, a professor of politics at the University of Notre Dame. . . . Equality of opportunity has produced a new meritocratic aristocracy that has all the aloofness of the old aristocracy with none of its sense of noblesse oblige. Democracy has degenerated into a theatre of the absurd. And technological advances are reducing ever more areas of work into meaningless drudgery. “The gap between liberalism’s claims about itself and the lived reality of the citizenry” is now so wide that “the lie can no longer be accepted,” Mr Deneen writes. What better proof of this than the vision of 1,000 private planes whisking their occupants to Davos to discuss the question of “creating a shared future in a fragmented world”? . . .
Deneen does an impressive job of capturing the current mood of disillusionment, echoing leftwing complaints about rampant commercialism, right-wing complaints about narcissistic and bullying students, and general worries about atomisation and selfishness. But when he concludes that all this adds up to a failure of liberalism, is his argument convincing? . . . He argues that the essence of liberalism lies in freeing individuals from constraints. In fact, liberalism contains a wide range of intellectual traditions which provide different answers to the question of how to trade off the relative claims of rights and responsibilities, individual expression and social ties. . . . liberals experimented with a range of ideas from devolving power from the centre to creating national education systems.
Mr Deneen’s fixation on the essence of liberalism leads to the second big problem of his book: his failure to recognise liberalism’s ability to reform itself and address its internal problems. The late 19th century saw America suffering from many of the problems that are reappearing today, including the creation of a business aristocracy, the rise of vast companies, the corruption of politics and the sense that society was dividing into winners and losers. But a wide variety of reformers, working within the liberal tradition, tackled these problems head on. Theodore Roosevelt took on the trusts. Progressives cleaned up government corruption. University reformers modernised academic syllabuses and built ladders of opportunity. Rather than dying, liberalism reformed itself.
Mr Deneen is right to point out that the record of liberalism in recent years has been dismal. He is also right to assert that the world has much to learn from the premodern notions of liberty as self-mastery and self-denial. The biggest enemy of liberalism is not so much atomisation but old-fashioned greed, as members of the Davos elite pile their plates ever higher with perks and share options. But he is wrong to argue that the only way for people to liberate themselves from the contradictions of liberalism is “liberation from liberalism itself”. The best way to read “Why Liberalism Failed” is not as a funeral oration but as a call to action: up your game, or else.
All of the following statements are evidence of the decline of liberalism today, EXCEPT:
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