1. Azote is the old name for what element?

Answer: Nitrogen

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MCQ-> Read Ito’ following passage carefully and answer the questions given below it. Certain words are printed in bold to help you locate them while answering sonic of the questions. Once upon a time. there was a shrewd shopkeeper called Makitrand. He had a friend called Mihir, who had saved a lot of money. Mihir was keen on going on a pilgrimage. But he did not know where to leave his precious savings. So he came to Makarand’s shop and said, ‘my friend, I trust you more than anyone. Could you please look after my life’s savings till i return from my pilgrimage Makarand pretended to be deep in thought, and then said, ‘1 would rather not. Money spoils relationships. What if something hap • pens to your money while you are away ? You will no longer be my friend.’ As Mihir stood there by his shop thinking about what his friend had just said, an old woman entered the shup and bought some things. One of the boys helping Makarand, gave her less change than he should have. Makaranc saw this and pretended to scold the boy, he then ordered him to return the remaining money to the woman. Mihir not knowing that this was an act put up by Makarand to make him believe that he was honest, was convinced about his decision and said to Makarand, ‘I have decided. I will leave the money only with you.’ Makarand smiled. Then let us do something. Let’s take the bag of coins and bury it in a place that only you and I will know of. That way, even if something happens to me while you are away, you will know where your money is: Mihir, simple that he was. thought this was a good idea and the two went and hid the bag in a secret place. Mihir left the next day on his pilgrimage. happy his savings Were in safe hands. Six months later, Mihir returned. He dumped his luggage at home and went to dig out his bag of savings. But even though he searched and searched for his valuables, there was no sign of the bag anywhere. In panic, he ran in Makarand, who was busy in his shop. When Mihir asked him about the bitg, Makarand pretended to be surprised. ‘But I did not go that way in all these months. Why don’t you search for it again ?’ he said, putting on his most innocent look. Mihir had no choice but to believe him. Sadly, he went home. On the way, as luck would have it, he met the old woman he had seen in Makarand’s shop. Seeing him sad. she asked him what the matter was. Mihir told her the whole story, Then she smiled and whispered a plan to him. Not long after, the woman came to Makarand’s shop, carrying a big box. ‘Brother, I heard you are a good and honest man. My son went on a pilgrimage many months ago and has still not returned. 1 am worried and have decided to go and loo for him. Will you look after my box of two hundred gold coins while I am away ?Makarand could not believe his luck. He was about to launch into his idea about- hiding the box, when an angry Mihir entered the shop, ‘Where is but before he could complete his sentence, Makarand, afraid of being accused in front of the old woman, said quickly, ‘I forgot. I had seen some pigs digging around there and had removed the bag just to keep it safe. Here it is.’ And he handed Mihir the bag he had stolen many months ago. Now the old woman pretended she was seeing Mihir for the first time, Son, did you also go on a pilgrimage? Could you tell me if you met my son anywhere? His name is Jahangir.’ Mihir, clutching onto his precious bag, said, ‘Yes, Auntie, I met him on the road a few villages away. He was on his way home. He should be here in a week.’ The old woman leaned over and took her box away from Makarand. Thank you. Brother, you have saved me an unnecessary trip. Now, I will need some money to prepare for my son’s welcome,’ she added and the two left the shop. Makarand could only stare at them Open-mouthed,What incident in the passage convinced Mihir that Makarand was indeed an honest man? (A) The incident where he scolded his helper boy for returning less change to the old woman who was a customer in his shop. (B) The fact that Makarand refused to keep Mihir’s money, in the event that it might destroy their friendship. (C) The incident where Makarand told Mihir that he had kept his hag with him as he saw pigs digging at the very spot where the treasure was buried....
MCQ-> In a modern computer, electronic and magnetic storage technologies play complementary roles. Electronic memory chips are fast but volatile (their contents are lost when the computer is unplugged). Magnetic tapes and hard disks are slower, but have the advantage that they are non-volatile, so that they can be used to store software and documents even when the power is off.In laboratories around the world, however, researchers are hoping to achieve the best of both worlds. They are trying to build magnetic memory chips that could be used in place of today’s electronics. These magnetic memories would be nonvolatile; but they would also he faster, would consume less power, and would be able to stand up to hazardous environments more easily. Such chips would have obvious applications in storage cards for digital cameras and music- players; they would enable handheld and laptop computers to boot up more quickly and to operate for longer; they would allow desktop computers to run faster; they would doubtless have military and space-faring advantages too. But although the theory behind them looks solid, there are tricky practical problems and need to be overcome.Two different approaches, based on different magnetic phenomena, are being pursued. The first, being investigated by Gary Prinz and his colleagues at the Naval Research Laboratory (NRL) in Washington, D.c), exploits the fact that the electrical resistance of some materials changes in the presence of magnetic field— a phenomenon known as magneto- resistance. For some multi-layered materials this effect is particularly powerful and is, accordingly, called “giant” magneto-resistance (GMR). Since 1997, the exploitation of GMR has made cheap multi-gigabyte hard disks commonplace. The magnetic orientations of the magnetised spots on the surface of a spinning disk are detected by measuring the changes they induce in the resistance of a tiny sensor. This technique is so sensitive that it means the spots can be made smaller and packed closer together than was previously possible, thus increasing the capacity and reducing the size and cost of a disk drive. Dr. Prinz and his colleagues are now exploiting the same phenomenon on the surface of memory chips, rather spinning disks. In a conventional memory chip, each binary digit (bit) of data is represented using a capacitor-reservoir of electrical charge that is either empty or fill -to represent a zero or a one. In the NRL’s magnetic design, by contrast, each bit is stored in a magnetic element in the form of a vertical pillar of magnetisable material. A matrix of wires passing above and below the elements allows each to be magnetised, either clockwise or anti-clockwise, to represent zero or one. Another set of wires allows current to pass through any particular element. By measuring an element’s resistance you can determine its magnetic orientation, and hence whether it is storing a zero or a one. Since the elements retain their magnetic orientation even when the power is off, the result is non-volatile memory. Unlike the elements of an electronic memory, a magnetic memory’s elements are not easily disrupted by radiation. And compared with electronic memories, whose capacitors need constant topping up, magnetic memories are simpler and consume less power. The NRL researchers plan to commercialise their device through a company called Non-V olatile Electronics, which recently began work on the necessary processing and fabrication techniques. But it will be some years before the first chips roll off the production line.Most attention in the field in focused on an alternative approach based on magnetic tunnel-junctions (MTJs), which are being investigated by researchers at chipmakers such as IBM, Motorola, Siemens and Hewlett-Packard. IBM’s research team, led by Stuart Parkin, has already created a 500-element working prototype that operates at 20 times the speed of conventional memory chips and consumes 1% of the power. Each element consists of a sandwich of two layers of magnetisable material separated by a barrier of aluminium oxide just four or five atoms thick. The polarisation of lower magnetisable layer is fixed in one direction, but that of the upper layer can be set (again, by passing a current through a matrix of control wires) either to the left or to the right, to store a zero or a one. The polarisations of the two layers are then either the same or opposite directions.Although the aluminum-oxide barrier is an electrical insulator, it is so thin that electrons are able to jump across it via a quantum-mechanical effect called tunnelling. It turns out that such tunnelling is easier when the two magnetic layers are polarised in the same direction than when they are polarised in opposite directions. So, by measuring the current that flows through the sandwich, it is possible to determine the alignment of the topmost layer, and hence whether it is storing a zero or a one.To build a full-scale memory chip based on MTJs is, however, no easy matter. According to Paulo Freitas, an expert on chip manufacturing at the Technical University of Lisbon, magnetic memory elements will have to become far smaller and more reliable than current prototypes if they are to compete with electronic memory. At the same time, they will have to be sensitive enough to respond when the appropriate wires in the control matrix are switched on, but not so sensitive that they respond when a neighbouring elements is changed. Despite these difficulties, the general consensus is that MTJs are the more promising ideas. Dr. Parkin says his group evaluated the GMR approach and decided not to pursue it, despite the fact that IBM pioneered GMR in hard disks. Dr. Prinz, however, contends that his plan will eventually offer higher storage densities and lower production costs.Not content with shaking up the multi-billion-dollar market for computer memory, some researchers have even more ambitious plans for magnetic computing. In a paper published last month in Science, Russell Cowburn and Mark Well and of Cambridge University outlined research that could form the basis of a magnetic microprocessor — a chip capable of manipulating (rather than merely storing) information magnetically. In place of conducting wires, a magnetic processor would have rows of magnetic dots, each of which could be polarised in one of two directions. Individual bits of information would travel down the rows as magnetic pulses, changing the orientation of the dots as they went. Dr. Cowbum and Dr. Welland have demonstrated how a logic gate (the basic element of a microprocessor) could work in such a scheme. In their experiment, they fed a signal in at one end of the chain of dots and used a second signal to control whether it propagated along the chain.It is, admittedly, a long way from a single logic gate to a full microprocessor, but this was true also when the transistor was first invented. Dr. Cowburn, who is now searching for backers to help commercialise the technology, says he believes it will be at least ten years before the first magnetic microprocessor is constructed. But other researchers in the field agree that such a chip, is the next logical step. Dr. Prinz says that once magnetic memory is sorted out “the target is to go after the logic circuits.” Whether all-magnetic computers will ever be able to compete with other contenders that are jostling to knock electronics off its perch — such as optical, biological and quantum computing — remains to be seen. Dr. Cowburn suggests that the future lies with hybrid machines that use different technologies. But computing with magnetism evidently has an attraction all its own.In developing magnetic memory chips to replace the electronic ones, two alternative research paths are being pursued. These are approaches based on:
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MCQ-> The passage given below is followed by a set of three questions. Choose the most appropriate answer to each question.Every civilized society lives and thrives on a silent but profound agreement as to what is to be accepted as the valid mould of experience. Civilization is a complex system of dams, dykes, and canals warding off, directing, and articulating the influx of the surrounding fluid element; a fertile fenland, elaborately drained and protected from the high tides of chaotic, unexercised, and inarticulate experience. In such a culture, stable and sure of itself within the frontiers of 'naturalized' experience, the arts wield their creative power not so much in width as in depth. They do not create new experience, but deepen and purify the old. Their works do not differ from one another like a new horizon from a new horizon, but like a madonna from a madonna.The periods of art which are most vigorous in creative passion seem to occur when the established pattern of experience loosens its rigidity without as yet losing its force. Such a period was the Renaissance, and Shakespeare its poetic consummation. Then it was as though the discipline of the old order gave depth to the excitement of the breaking away, the depth of job and tragedy, of incomparable conquests and irredeemable losses. Adventurers of experience set out as though in lifeboats to rescue and bring back to the shore treasures of knowing and feeling which the old order had left floating on the high seas. The works of the early Renaissance and the poetry of Shakespeare vibrate with the compassion for live experience in danger of dying from exposure and neglect. In this compassion was the creative genius of the age. Yet, it was a genius of courage, not of desperate audacity. For, however elusively, it still knew of harbours and anchors, of homes to which to return, and of barns in which to store the harvest. The exploring spirit of art was in the depths of its consciousness still aware of a scheme of things into which to fit its exploits and creations. But the more this scheme of things loses its stability, the more boundless and uncharted appears the ocean of potential exploration. In the blank confusion of infinite potentialities flotsam of significance gets attached to jetsam of experience; for everything is sea, everything is at sea - .... The sea is all about us; The sea is the land's edge also, the granite Into which it reaches, the beaches where it tosses Its hints of earlier and other creation ... - and Rilke tells a story in which, as in T.S. Eliot's poem, it is again the sea and the distance of 'other creation' that becomes the image of the poet's reality. A rowing boat sets out on a difficult passage. The oarsmen labour in exact rhythm. There is no sign yet of the destination. Suddenly a man, seemingly idle, breaks out into song. And if the labour of the oarsmen meaninglessly defeats the real resistance of the real waves, it is the idle single who magically conquers the despair of apparent aimlessness. While the people next to him try to come to grips with the element that is next to them, his voice seems to bind the boat to the farthest distance so that the farthest distance draws it towards itself. 'I don't know why and how,' is Rilke's conclusion, 'but suddenly I understood the situation of the poet, his place and function in this age. It does not matter if one denies him every place - except this one. There one must tolerate him.'In the passage, the expression “like a madonna from a madonna” alludes to
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MCQ-> Read the following passage and answer the questions. Passage: An old man with steel rimmed spectacles and very dusty clothes sat by the side of the road. There was a pontoon bridge across the river and carts, trucks, and men, women and children were crossing it. The mule-drawn carts staggered up the steep bank from the bridge with soldiers helping to push against the spokes of the wheels. The trucks ground up and away heading out of it all and the peasants plodded along in the ankle deep dust. But the old man sat there without moving. He was too tired to go any farther. It was my business to cross the bridge, explore the bridgehead beyond and find out to what point the enemy had advanced. I did this and returned over the bridge. There were not so many carts now and very few people on foot, but the old man was still there. "Where do you come from?" I asked him. "From San Carlos," he said, and smiled. That was his native town and so it gave him pleasure to mention it and he smiled. "I was taking care of animals." he explained. "Oh," I said, not quite understanding. "Yes," he said, "I stayed. you see, taking care of animals. I was the last one to leave the town of San Carlos." He did not look like a shepherd nor a herdsman and I looked at his black dusty clothes and his gray dusty face and his steel rimmed spectacles and said. "What animals were they?" "Various animals." he said. and shook his head. "I had to leave them." I was watching the bridge and the African looking country of the Ebro Delta wondering how long now it would be before we would see the enemy.. "What animals were they?" I asked. "There were three animals altogether," he explained. "There were two goats and a cat and then there were four pairs of pigeons." "And you had to leave them?" I asked. "Yes. Because of the artillery. The captain told me to go because of the artillery." "And you have no family?" I asked, watching the far end of the bridge where a few last carts were hurrying down the slope of the bank. "No," he said, "only the animals I stated. The cat, of course, will be all right. A cat can look out for itself. but I cannot think what will become of the others." "What politics have you?" I asked. "I am without politics," he said. "I am seventy-six years old. I have come twelve kilometers now and I think now I can go no further." "This is not a good place to stop," I said. "If you can make it, there are trucks up the road where it forks for Tortosa." "I will wait a while," he said, "and then I will go. Where do the trucks go?" "Towards Barcelona," I told him.Where was the old man coming from?
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MCQ-> Studies of the factors governing reading development in young children have achieved a remarkable degree of consensus over the past two decades. The consensus concerns the causal role of ‘phonological skills in young children’s reading progress. Children who have good phonological skills, or good ‘phonological awareness’ become good readers and good spellers. Children with poor phonological skills progress more poorly. In particular, those who have a specific phonological deficit are likely to be classified as dyslexic by the time that they are 9 or 10 years old.Phonological skills in young children can be measured at a number of different levels. The term phonological awareness is a global one, and refers to a deficit in recognising smaller units of sound within spoken words. Development work has shown that this deficit can be at the level of syllables, of onsets and rimes, or phonemes. For example, a 4-year old child might have difficulty in recognising that a word like valentine has three syllables, suggesting a lack of syllabic awareness. A five-year-old might have difficulty in recognizing that the odd work out in the set of words fan, cat, hat, mat is fan. This task requires an awareness of the sub-syllabic units of the onset and the rime. The onset corresponds to any initial consonants in a syllable words, and the rime corresponds to the vowel and to any following consonants. Rimes correspond to rhyme in single-syllable words, and so the rime in fan differs from the rime in cat, hat and mat. In longer words, rime and rhyme may differ. The onsets in val:en:tine are /v/ and /t/, and the rimes correspond to the selling patterns ‘al’, ‘en’ and’ ine’.A six-year-old might have difficulty in recognising that plea and pray begin with the same initial sound. This is a phonemic judgement. Although the initial phoneme /p/ is shared between the two words, in plea it is part of the onset ‘pl’ and in pray it is part if the onset ‘pr’. Until children can segment the onset (or the rime), such phonemic judgements are difficult for them to make. In fact, a recent survey of different developmental studies has shown that the different levels of phonological awareness appear to emerge sequentially. The awareness of syllables, onsets, and rimes appears to merge at around the ages of 3 and 4, long before most children go to school. The awareness of phonemes, on the other hand, usually emerges at around the age of 5 or 6, when children have been taught to read for about a year. An awareness of onsets and rimes thus appears to be a precursor of reading, whereas an awareness of phonemes at every serial position in a word only appears to develop as reading is taught. The onset-rime and phonemic levels of phonological structure, however, are not distinct. Many onsets in English are single phonemes, and so are some rimes (e.g. sea, go, zoo).The early availability of onsets and rimes is supported by studies that have compared the development of phonological awareness of onsets, rimes, and phonemes in the same subjects using the same phonological awareness tasks. For example, a study by Treiman and Zudowski used a same/different judgement task based on the beginning or the end sounds of words. In the beginning sound task, the words either began with the same onset, as in plea and plank, or shared only the initial phoneme, as in plea and pray. In the end-sound task, the words either shared the entire rime, as in spit and wit, or shared only the final phoneme, as in rat and wit. Treiman and Zudowski showed that four- and five-year-old children found the onset-rime version of the same/different task significantly easier than the version based on phonemes. Only the sixyear- olds, who had been learning to read for about a year, were able to perform both versions of the tasks with an equal level of success.From the following statements, pick out the true statement according to the passage.
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