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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. Elongation of grain flow in direction of rolling






2. Rubbers






3. Good wear - case hardening. ball bearings






4. 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






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






6. Area parallel to force






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






8. 10MHZ






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






10. 100khz






11. MA=VR






12. Load/area






13. 1GHZ






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






15. Hard - strong






16. 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 developer is then added to it to expose any left over - I.e in the cracks






17. Better properties that would come from machining






18. High pressure

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






20. Resulting from exposure to damp environments and liquids.






21. Ma/vr x 100/1






22. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






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






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






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






26. Good high temp wear - tools






27. Difference/original






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






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






30. 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






31. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






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






33. 100GHZ+






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






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






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






37. Ma/vr






38. AC to DC






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






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






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






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






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






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






45. 1%<X<2% carbon. more cementite - used for files






46. Produces; harder - stronger and less ductile product






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






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






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. 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







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Can you answer 50 questions in 15 minutes?


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