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






2. Vertical






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






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






5. Elongation of grain flow in direction of rolling






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






7. x<0.15% carbon. ferrite. good for cold working - rolling sheets






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






9. 100GHZ+






10. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






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






12. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






13. 1/2Xmass X velocity X velocity






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






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






16. Load/area






17. Rubbers






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






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






20. Good toughness and fatigue. high strength structures






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






22. Good wear - case hardening. ball bearings






23. MA=VR






24. These have weaker secondary bonds which allow the stretching






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






26. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






27. 1GHZ






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






29. Area load piston/area of effort piston






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






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






32. Ma/vr






33. 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






34. Mass X gravity X height






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






36. Good high temp wear - tools






37. 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






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






39. Produces; harder - stronger and less ductile product






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






41. 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.






42. 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






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






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






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






46. Hard - strong






47. Resulting from exposure to damp environments and liquids.






48. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations






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






50. Soft - ductile