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






2. A device that converts the AC inside a DC generator to a DC output or converts a DC supply to an AC inside a DC motor.keeping the armature rotating






3. Rubbers






4. 1%<X<2% carbon. more cementite - used for files






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






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






7. 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






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






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






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






11. Good high temp wear - tools






12. 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






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






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






15. MA=VR






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






17. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






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






19. 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.






20. Load/area






21. Ma/vr






22. Horizontal






23. AC to DC






24. Hard - strong






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






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






27. 100khz






28. High pressure

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






30. Vertical






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






32. Usually used together - strengthening and toughness






33. These have weaker secondary bonds which allow the stretching






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






35. Produces; harder - stronger and less ductile product






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






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. Soft - ductile






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






40. Low pressure

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41. Area parallel to force






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






43. Good toughness and fatigue. high strength structures






44. 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






45. 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.






46. 10MHZ






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






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






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






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