exam2 - Final Exam ENSC 100 1200-1500 Name Group Student...

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Unformatted text preview: Final Exam, ENSC 100, 1200-1500, Dec 12, 2004 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. You may circle as many answers as you like to each question. Mark your answers directly on the exam sheet. 1. According to the first few lectures in the course, which of the following is not a possible explanation for the slow pace of engineering progress over the period 35,000 BC to 10,000 BC? a) Engineers at that period had small brains b) Experimenting with new methods was excessively risky c) Humanity was busy developing language and culture d) Human groups were small and isolated 2. Archimedes was employed in the city of a) Rome b) Athens c) Boston d) Syracuse 3. The word ‘engineer’ originates from: a) A Greek word meaning ‘worker’ b) A Latin word meaning ‘siege engine’ c) A Sanskrit word meaning ‘artisan’ d) A German word meaning ‘canal-digger’ 4. When the operation of weaving was first mechanised, the weavers began to work in large buildings called ‘mills’ rather than in their own cottages. This was because: a) they wanted to work together so they could unionise effectively b) it was more economical to light and heat large buildings c) it was impossible to make efficient cottage-scale steam engines d) working together made it easy to share knowledge, and hence to progress 5. Between 1880 and 1930, the number of engineers in North America: a) Stayed roughly the same b) Doubled c) Increased tenfold d) Increased a hundredfold 1 6. Teledeltos paper is an electrically-conducting form of paper. Engineers used to cut shapes from this paper, attach appropriate current and voltage sources to it, and, by measur- ing the electrical potential at various points on the paper, draw conclusions about the temperature that would be measured at the corresponding points in a thermal system. In doing this, they were using the paper as: a) a primitive neural net computer b) a primitive digital computer c) an analog computer d) a finite-element computer 7. When applying the results of a wind-tunnel test in a scale model to predicting the performance of a real plane, we need to enforce dynamic similarity between the model and the plane. This means that: a) if the length of the model is one-tenth that of the plane, the volume of the model must be one-thousandth that of the plane b) the wind speed in the wind tunnel must equal the wind speeds that the real plane will experience c) the ratio of the model’s dimensions to those of the plane must stay the same over time d) the important forces experienced by the model must be in the same ratio to each other as the corresponding forces experienced by the plane 8. Imagine a collection of gas molecules inside a closed container. Each molecule has a different speed and direction of motion. Now imagine that we have a magical devicedifferent speed and direction of motion....
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This note was uploaded on 03/17/2012 for the course MACM 201 taught by Professor Marnimishna during the Spring '09 term at Simon Fraser.

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exam2 - Final Exam ENSC 100 1200-1500 Name Group Student...

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