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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. Elongation of grain flow in direction of rolling






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






3. Ma/vr x 100/1






4. Usually used together - strengthening and toughness






5. 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






6. Hard - brittle






7. Good wear - case hardening. ball bearings






8. MA=VR






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






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






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






12. Horizontal






13. 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.






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






15. Difference/original






16. When upper die is dropped on bottom






17. 1/4 of the wavelength (higher better)






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






19. 1%<X<2% carbon. more cementite - used for files






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






21. 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.






22. Rubbers






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






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






25. Load/effort






26. Area load piston/area of effort piston






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






28. 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






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






30. Area parallel to force






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






32. Mass X gravity X height






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






34. Produces; harder - stronger and less ductile product






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






36. Ma/vr






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






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






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






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






41. 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






42. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






43. 100GHZ+






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






45. Good toughness and fatigue. high strength structures






46. Low pressure

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47. Load/area






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






49. 1GHZ






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