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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. Vertical






2. Area parallel to force






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






4. X<1% silicon no graphite - has carbon/carbide. very brittle






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






6. Good wear - case hardening. ball bearings






7. A motor that is light - rugged and very reliable - runs on ac current and are more common in robotics. Can only run at a certain speed






8. A method of transmitting signals by changing the frequency of a wave






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






10. Ma/vr x 100/1






11. Supply current to the rotating commutator from an external source






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






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






14. Resulting from exposure to damp environments and liquids.






15. Hard - brittle






16. AC to DC






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






18. Forming of metal by compressive force above recrystallization point.






19. Good high temp wear - tools






20. 1%<X<2% carbon. more cementite - used for files






21. Low pressure

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22. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






23. Better properties that would come from machining






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






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






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






27. Used where scarifical anodes cannot supply enough protection - offshore oil rigs - buried pipes - big things. protection is provided by connecting a rectifier to provide a direct current source between the anode and the metal being protected.






28. 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






29. Difference/original






30. Horizontal






31. 1/4 of the wavelength (higher better)






32. 1GHZ






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






34. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool






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






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






37. 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 developer is then added to it to expose any left over - I.e in the cracks






38. Results from the changing anode and cathode regions over the entire surface






39. 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






40. Rubbers






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






42. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.






43. Load/area






44. When upper die is dropped on bottom






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






46. MA=VR






47. Area load piston/area of effort piston






48. Hard - strong






49. High pressure

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50. Load/effort