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






2. Better properties that would come from machining






3. Hard - brittle






4. Area parallel to force






5. Good high temp wear - tools






6. AC to DC






7. 1GHZ






8. 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






9. Area load piston/area of effort piston






10. 1%<X<2% carbon. more cementite - used for files






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






12. Produces; harder - stronger and less ductile product






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






14. 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






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






16. 1/2Xmass X velocity X velocity






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






18. Elongation of grain flow in direction of rolling






19. MA=VR






20. 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






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






22. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






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






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






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






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






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






28. Ma/vr






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






30. Usually used together - strengthening and toughness






31. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






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






33. Load/area






34. Mass X gravity X height






35. Horizontal






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






37. Soft - ductile






38. Ma/vr x 100/1






39. Rubbers






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






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






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






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






44. Good toughness and fatigue. high strength structures






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






46. Resulting from exposure to damp environments and liquids.






47. Difference/original






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






49. Good wear - case hardening. ball bearings






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