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






3. Elongation of grain flow in direction of rolling






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






5. Area parallel to force






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






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






8. 1/4 of the wavelength (higher better)






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






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






11. Ma/vr x 100/1






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






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






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






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






16. 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






17. Soft - ductile






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






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






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






21. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






22. Good wear - case hardening. ball bearings






23. 100khz






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






25. 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






26. 1/2Xmass X velocity X velocity






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






28. Good toughness and fatigue. high strength structures






29. Load/effort






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






31. 100GHZ+






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






33. 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.






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






35. Produces; harder - stronger and less ductile product






36. Good high temp wear - tools






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






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






39. Usually used together - strengthening and toughness






40. 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






41. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






42. Hard - strong






43. 10MHZ






44. 1%<X<2% carbon. more cementite - used for files






45. MA=VR






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






47. 1GHZ






48. Resulting from exposure to damp environments and liquids.






49. Better properties that would come from machining






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