Global Positioning Systems   are now a part of everyday driving in many countries.These satellitebased systems provide turnbyturn directions to help people get to where they want to go.However,they can also cause a lot of problems,send you to the wrong place or leave you completely lost.Many times,the driver is to blame.Sometimes a GPS error is responsible.Most often,says Barry Brown,it is a combination of the two. Barry Brown is with the Mobile Life Centre in Stockholm,Sweden.He told us about an incident involving a friend who had flown to an airport in the eastern United States.There he borrowed a GPSequipped car to use during his stay.Mr Brown says,"They just plugged in an address and then set off to their destination.And,then it wasn't until they were driving for thirty minutes that they realized they actually put in a destination back on the West Coast where they lived.They actually put their home address in.So again,the GPS is kind of 'garbage in garbage out'." Mr Brown says this is a common human error,but what makes the problem worse has to do with some of the shortcomings,or failures,of GPS equipment.He says,"One problem with a lot of the GPS units is they have a very small screen and they just tell you the next turn.Because they just give you the next turn,sometimes that means that it is not really giving you the overview that you would need to know that it's going to the wrong place." Mr Brown says,"One of the things that struck us,perhaps the most important thing was that you have to know what you're doing when you use a GPS.There are these new skills that people have developed.There are these new competencies   that you need to have to be able to use a GPS because they sometimes go wrong.This goes against a common belief that GPS systems are for passive drivers who lack navigational skills." Barry Brown says to make GPS systems better we need a better understanding of how drivers,passengers and GPS systems work together. Which of the followings is one of the shortcomings of GPS equipment? A) It just tells the driver to turn once at a time. B) It gives the driver the overview. C) Its screen is too small to be seen clearly. D) It is only suitable for passive drivers.
A


(Question)
A student is given three toys by his teacher and is asked to find out the differences. All the three toys seem to be the same in shape, size and material. After careful observation, the student finds out holes in the toys. The first toy has holes in the ears. The second toy has holes in one ear and the mouth. And the third toy has only one hole in one ear. Then the student puts a needle in the ear hole of the first toy. The needle comes out from the other ear. When the needle is put in the second toy's ear it comes out of the mouth. And when the needle is put in the third toy's ear, it does not come out. The first toy means those people around you who make you think that they are listening to you and caring for you. But they just pretend to do so. After listening, as the needle comes out from the other ear, the things you said to them are gone. So be careful while you are speaking to this type of person around you, who does not care for you. The second toy means those people who listen to you and make you think that they care for you. But as the needle comes out from its mouth, these people will use your things and the words you tell them against you by telling them to others for their own purpose. For the third toy, the needle does not come out from it. These kinds of people will keep the trust you have in them. They are the ones you can depend on. What does the difference between the three toys lie in? A) Holes B) Size C) Material D) Shape
(Answer)
A


Ques: If you and your friends wish to share a secret, you can write it in code, and no one else will be able to read it. Codes are one way of writing in secret. Ciphers   are another. In a code each word is written as a secret code word or a code number. In a cipher each letter is changed. Codes and ciphers have played an important role in the history of the world. Julius Caesar, the Roman ruler who defeated almost all the countries in Europe about 2,000 years ago, used a cipher when he sent secret messages to his troops. During the American Revolution, George Washington's spies used a kind of code to send his information about the enemy before his military action. In World War II, the Americans"broke"or figured out Japan's most important navy codes and got enough information to destroy a powerful Japanese fleet. Storekeepers use codes to mark their goods. The codes show how much is paid for the goods or when they are added to the stock. Businessmen use codes to hide plans from their business enemies. Sometimes personal letters or diaries are written in code. Many people enjoy figuring out codes and ciphers simply as a hobby. In the 16th century, codes and ciphers were very popular among scientists. They wrote messages to each other in code so that no one else would learn their secrets. Geronimo Gardano, an Italian astrologer  , mathematician, and doctor, invented the trellis cipher. He took two sheets of paper and cut exactly the same holes in each one. Then he sent one sheet, which he called a trellis, to a friend and kept the other for himself. Whenever he wanted to write a message, he put his trellis over a clean sheet of paper and wrote the secret message through the holes. There he removed the trellis and filled the rest of the paper with words that would make sense. When his friend received it, he put his trellis over the writing and read the secret message. Which of the following statements is TRUE? A) Ciphers can be broken or figured out more easily than codes. B) You could read some words in Geronimo's letter without his trellis. C) The first person who ever used a cipher in history was Julius Caesar. D) Fondness of using codes was the hobby of the scientists in the 1600s.
Ans: B


Question: In 1975, George Carlin appeared on a popular TV show, Saturday Night Live, with his famous words about blue food. "Why is there no blue food? I can't find blue food--I can't find the flavor of blue! I mean yellow is lemon; orange is orange and red is cherry. Where is the blue food? " Well, Carlin pretty much has it right--there's not no blue food, but there's certainly not a lot of it. Fresh-picked blueberries are blue, though they become purple when they are turned into jam. The blue in blueberries--like the purple in grapes and the red in tomatoes--is found in nature. But it isn't a hot color for food. People don't seem to prefer blue food. Some diet programs even suggest that those determined to lose weight should make their food blue. Eating, in part, begins with our eyes. Charles Spence--an experimental psychologist from Oxford University--points out that color can change our taste experience. Commonly, we consider red-colored foods up to 20% sweeter than they actually are; and green foods as being more sour. Spence suggests: human expectations may be influenced by our long history of watching - green fruits can become sweet as they grow up and turn red. But what about blue? Except blueberries, much of the blue food we see these days _ blue artificially. Food producers argue that artificial color doesn't do much harm to health. A lot of research shows that some physical problems of kids are related to food dyes--while other studies show no effects at all. Blue birthday cake or even blue-dyed chicken can be served on the dinner table. So what? Eating sometimes begins with our eyes because   _  . A) our taste experience can be influenced by color B) red-colored food are 20% sweeter than green food C) people prefer red-colored food to green food D) before eating, people watch food for a long time
Answer:
A