Ques: Read the following article and select the best answer. Article: An early invention by Albert Einstein has been rebuilt by scientists at Oxford University. They are trying to develop an environmentally friendly refrigerator that runs without electricity. We all know that modern fridges cause damage to the environment. They work by using a kind of man-made greenhouse gas called Freon , which is far more damaging than carbon dioxide. Now Malcolm McCulloch, an electrical engineer at Oxford, is leading a three-year project to develop appliances that can be used in places without electricity. His team has completed a prototype of a fridge patented in 1930 by Einstein. It used only pressurized gases to keep things cold. The design was partly used in the first refrigerators, but the technology was dropped when more efficient compressors became popular in the 1950s. That meant a switch to using Freon. Einstein's idea uses butane and water and takes advantage of the fact that liquids boil at lower temperatures, when the air pressure around them is lower. "If you go to the top of Mount Qomolangma, water boils at a much lower temperature than it does when you're at sea level and that's because the pressure is much lower up there," said McCulloch.At one side is the evaporator , a bottle that contains liquid butane. "If you introduce a new vapor above the butane, the liquid boiling temperature decreases and, as it boils off, it takes energy from the surroundings to do so," says McCulloch. "That's what makes it cold." The gas fridges based on Einstein's design were replaced by Freon-compressor fridges partly because Einstein's design was not very efficient. But McCulloch thinks that by changing the design and replacing the types of gases used it will be possible to quadruple the efficiency. However, McCulloch's fridge is still in its early stages. "It's very much a prototype," he said. "Give us another month and we'll have it working." Question: Which of the following is TRUE according to the text? - Freon was used in fridges long before the 1950s. - Freon is what makes current fridges big polluters. - McCulloch thinks he could improve Einstein's design by using other types of vapors. - The fridge Malcolm McCulloch and his team designed will be put into production soon.
Ans: Freon is what makes current fridges big polluters.

Ques: Read the following article and select the best answer. Article: "Heaven is where the police are English, the cooks are French, the mechanics are German, the lovers are Italian and everything is organized by the Swiss. Hell is where the police are German, the cooks are English, the mechanics are French, the lovers are Swiss, and everything is organized by the Italians." Obviously the national stereotypes in this old joke are generalizations , but such stereotypes are often said to "exist for a reason". Is there actually a sliver of truth in them? Not likely, an international research team now says. "National and cultural stereotypes do play an important role in how people see themselves and others, and being aware that these are not dependable is a useful thing," said study author Robert McCrae of the National Institute on Aging. "These are in fact unfounded stereotypes. They don't come from looking around you," McCrae said. If national stereotypes aren't rooted in real experiences, then where do they come from? One possibility is that they reflect national values, which may become known from historical events. For example, many historians have argued that the spirit of American individualism has its origins in the experiences of the pioneers on the Old West. Social scientists such as psychologist Richard Robins have given several other possible explanations for stereotypes and why they may be incorrect. Robins notes that some stereotypes may have been correct at one point in history and then remained unchanged while the culture changed. We may be _ , to some degree, to keep incorrect stereotypes, since we are less likely to notice and remember information that is different from our stereotypes. Generally, according to Robins, when we meet people who are different from our stereotypes, we see them as unique individuals rather than typical national or cultural groups. Question: National stereotypes are not always correct because _ . - they are formed by individual historians - what was true in the past may not be true at the present - generalizations are made through personal experience - people tend to have false idea about other cultures
Ans: what was true in the past may not be true at the present

Ques: Read the following article and select the best answer. Article: Publicity offers several benefits. There are no costs for message time or space. An ad in prime-time television may cost $250,000 to $5,000,000 or more per minute, whereas a five-minute report on a network newscast would not cost anything. Publicity reaches a mass audience within a short time and new products or company policies are widely known. Credibility about messages is high, because they are reported in independent media. A newspaper review of a movie has more believability than an ad in the same paper, because the reader associates independence with objectivity. Similarly, people are more likely to pay attention to news reports than to ads. For example, Women's Wear Daily has both fashion reports and advertisements. Readers spend time reading the stories, but they skim through the ads. Furthermore, there may be 10 commercials during a half-hour television program or hundreds of ads in a magazine. Feature stories are much fewer in number and stand out clearly. Publicity also has some significant limitations. A firm has little control over messages, their timing, their placement, or their coverage by a given medium. It may issue detailed news releases and find only portions mentioned by the media, and media have the ability to be much more critical than a firm would like. For example, in 1982, Procter & Gamble faced a massive publicity problem over the meaning of its 123-year-old company logo. To fight this negative publicity, the firm had a spokesperson appear on Good Morning America to disprove the rumor . The false rumors were temporarily put to rest. However, in 1985, publicity became so troublemaking that Procter & Gamble decided to remove the logo from its products. Question: The example of "Procter & Gamble" is given to show _ . - the efficient way of disproving rumors - the importance of a spokesperson - the interaction between firms and media - the negative effect of publicity
Ans:
the negative effect of publicity