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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. 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






2. Load/area






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






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. Soft - ductile






6. Difference/original






7. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






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






9. MA=VR






10. 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






11. Ma/vr






12. 1/4 of the wavelength (higher better)






13. 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






14. Rubbers






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






16. Good toughness and fatigue. high strength structures






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






18. 1GHZ






19. 100GHZ+






20. When upper die is dropped on bottom






21. Low pressure

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






23. Better properties that would come from machining






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






25. Horizontal






26. Area parallel to force






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






28. 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






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






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






31. Hard - strong






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






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






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






35. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






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






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






38. Area load piston/area of effort piston






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






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






41. Hard - brittle






42. These have weaker secondary bonds which allow the stretching






43. Mass X gravity X height






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






45. 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






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






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






48. Ma/vr x 100/1






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






50. Good high temp wear - tools