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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. Area load piston/area of effort piston






2. 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.






3. AC to DC






4. 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






5. 1/4 of the wavelength (higher better)






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






7. Ma/vr






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






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






10. Load/area






11. 100GHZ+






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






13. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






14. Mass X gravity X height






15. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






16. 1%<X<2% carbon. more cementite - used for files






17. Rubbers






18. Low pressure

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






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






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






22. Good high temp wear - tools






23. Good wear - case hardening. ball bearings






24. High pressure

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25. Ma/vr x 100/1






26. A method of transmitting signals by changing the amplitude of a waves






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






28. 1GHZ






29. MA=VR






30. Better properties that would come from machining






31. Resulting from exposure to damp environments and liquids.






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






33. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering






34. When upper die is dropped on bottom






35. An orbit in which a satellite orbits Earth at the same rate as Earth rotates and thus stays over the same place all the time






36. Hard - brittle






37. 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






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






39. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.






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






41. 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






42. Soft - ductile






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






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






45. Squeezing of the hot metal between two shaped dies excess is cut off






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






47. 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






48. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points






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






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