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exam1_answer - Final Exam ENSC 100 3:30-6:30 Dec 8 2003...

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Final Exam, ENSC 100, 3:30-6:30, Dec 8, 2003 Name: Group: Student Number: This is a closed-book exam. You may not consult any written material of any kind during the examination. All questions are multiple choice and are worth three points. There is exactly one correct answer to each question. One point will be deducted for each incorrect answer. Mark your answers directly on the exam sheet. 1. According to the first few lectures in the course, how far back does the history of engi- neering go? a) About a million years 2. A heat pump is a device that: b) Uses mechanical power to move heat from a cold object to a hot object 3. Henry Hollerith adapted the punched card to store information about: b) the 1890 US population 4. One cause suggested in lectures for the re-awakening of technology in Europe in the fourteenth century was: d) the Black Death 5. In what profession were the Luddites employed? b) Weavers 6. Which of the following 20-th century inventions was not developed during the Second World War? b) the transistor 7. The traveller Lemuel Gulliver encountered a community of absurdly impractical scientists during his voyage to: c) Laputa 8. According to the ‘laws of engineering’ suggested in the course, when an item is mass- produced, then as the number of items produced tends to infinity, b) the unit cost of each item tends to the cost of the raw materials used in its manu- facture 9. Imagine we have an empty cardboard box, well insulated, so that no heat or electric current can pass through the walls. Which of the following scenarios necessarily violates the First Law of Thermodynamics (also known as the Law of Conservation of Energy)? b) A bucket of lukewarm water is placed in the box. When the box is opened, the bucket is found to be full of ice. 1
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10. Imagine we have an empty cardboard box, well insulated, so that no heat or electric current can pass through the walls. Which of the following scenarios does not necessarily violate the Second Law of Thermodynamics? c) A bucket of boiling water is placed in the box and a lump of ice added. When the box is opened, the bucket is found to be full of luke-warm water. 11. What is the information content of a picture on a megapixel computer screen, if each pixel can have any one of 256 colours?
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