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






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






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






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






5. Low pressure

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






7. Load/effort






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






9. 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






10. When upper die is dropped on bottom






11. Area load piston/area of effort piston






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






13. High pressure

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14. Good high temp wear - tools






15. Ma/vr






16. Area parallel to force






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






18. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






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






20. Solid at room temp - weak secondary bonds. can be reheated multiply times.






21. 100khz






22. Good toughness and fatigue. high strength structures






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






24. Load/area






25. 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






26. Difference/original






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






28. 10MHZ






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






30. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects






31. Mass X gravity X height






32. 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.






33. Resulting from exposure to damp environments and liquids.






34. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






35. AC to DC






36. 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






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






38. Horizontal






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






40. Ma/vr x 100/1






41. Soft - ductile






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






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






44. 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






45. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






46. Rubbers






47. Elongation of grain flow in direction of rolling






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






49. 100GHZ+






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