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Engineering Studies

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Results from the changing anode and cathode regions over the entire surface






2. Usually used together - strengthening and toughness






3. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds






4. Difference/original






5. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






6. Ma/vr






7. The quantity of information that can be transmitted through a communication medium in a given amount of time.






8. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching






9. Allows for another signal to be sent along the carrier signal






10. Better properties that would come from machining






11. Horizontal






12. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies






13. Solid at room temp - weak secondary bonds. can be reheated multiply times.






14. A solid state component made from three layers of semiconductor material that can amplify the strenght of an electric signal or act as an electronic switch






15. Hard - brittle






16. Maximum bending moments X distance to natural axis/ second moment of area






17. 1GHZ






18. Low pressure

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19. Us a metal that is more reactive. It is connect to another metal and corrodes instead of the other metal. the Anode is replaced periodically






20. Dye is sprayed onto a surface - with excess being wiped away - meaning any left on the piece would be in cracks that exist in it. A Fluorescent light is turned on to expose any left over - I.e in the cracks






21. Load/effort






22. Resulting from combined effect of stresses set up within the metal






23. Field winding parallel to armature winding. Bad for direct coupling






24. Can be reflected of the ionosphere - 3 to 30 megahertz






25. Resulting from exposure to oxygen in the atmosphere - chemical fumes - steam - flue gas. creates a layer of metal oxide.






26. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects






27. An orbit less than 1 -500 km. above the Earth's surface.






28. Involves heating the piece above Red heat and then letting it cool in air. causes smaller grains






29. Being forced - under pressure - through a hole like toothpaste. either hot or cold






30. 100GHZ+






31. These have weaker secondary bonds which allow the stretching






32. Soaked cast iron at 870c for long time then cooled slow






33. Ma/vr x 100/1






34. High pressure

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35. A flexible communications cable that contains pairs of insulated copper wires that are twisted together for reduction of EMI and RFI and covered with an outer insulating jacket.






36. 100khz






37. When upper die is dropped on bottom






38. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses






39. Resulting from exposure to damp environments and liquids.






40. Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces






41. A strong hard building material composed of sand and gravel and cement and water






42. 1/4 of the wavelength (higher better)






43. 10MHZ






44. 1%<X<2% carbon. more cementite - used for files






45. The greater the sulphur the harder the rubber to stretch






46. Between 2000-35 -700km above the earth's surface.






47. Softening a material such as metal by controlled heating and cooling. This makes the metal less brittle and more easily adaptable. Soaking till austenite then cooling slowly. large grains






48. 1/2Xmass X velocity X velocity






49. A cable made of optical fibers that can transmit large amounts of information at the speed of light






50. Mass X gravity X height







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Can you answer 50 questions in 15 minutes?


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