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






2. Hard - strong






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






4. Elongation of grain flow in direction of rolling






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






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






7. AC to DC






8. 1GHZ






9. Low pressure

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






11. 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






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






13. 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






14. High pressure

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






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. 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






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






19. Vertical






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






21. 10MHZ






22. Soft - ductile






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






24. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies






25. 1/4 of the wavelength (higher better)






26. Load/effort






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






28. 1/2Xmass X velocity X velocity






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






30. 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






31. 1%<X<2% carbon. more cementite - used for files






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






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






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






35. Produces; harder - stronger and less ductile product






36. Horizontal






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






38. Difference/original






39. Mass X gravity X height






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






41. Ma/vr x 100/1






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






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






44. Ma/vr






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






46. Hard - brittle






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






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






49. 100khz






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







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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