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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. Ma/vr






2. Elongation of grain flow in direction of rolling






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






4. Load/area






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






6. Use of xrays passed through the material to make a visual record of internal structures on specially sensitized film






7. Usually used together - strengthening and toughness






8. When upper die is dropped on bottom






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






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






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






12. 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






13. Produces; harder - stronger and less ductile product






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






15. Good toughness and fatigue. high strength structures






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






17. 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






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






19. Maximum bending moments X distance to natural axis/ second moment of area






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






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






22. Resulting from exposure to damp environments and liquids.






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






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






25. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






26. Low pressure


27. These have weaker secondary bonds which allow the stretching






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






29. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






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






31. 1GHZ






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






33. Area load piston/area of effort piston






34. High pressure


35. 10MHZ






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






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






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






39. Rubbers






40. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






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






42. 100GHZ+






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






44. Good wear - case hardening. ball bearings






45. 1/2Xmass X velocity X velocity






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






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






48. 1%<X<2% carbon. more cementite - used for files






49. 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.






50. 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