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






3. Hard - strong






4. Area parallel to force






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






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






7. 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.






8. Area load piston/area of effort piston






9. 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






10. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






11. Low pressure

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






13. 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






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






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






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






17. 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






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






19. Ma/vr






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






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






22. Rubbers






23. High pressure

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24. Hard - brittle






25. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






26. Good toughness and fatigue. high strength structures






27. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






28. 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






29. Elongation of grain flow in direction of rolling






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






31. Better properties that would come from machining






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






33. Vertical






34. 1GHZ






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






36. These have weaker secondary bonds which allow the stretching






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






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






39. 100khz






40. Produces; harder - stronger and less ductile product






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






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






43. Usually used together - strengthening and toughness






44. Good high temp wear - tools






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






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






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






48. 1%<X<2% carbon. more cementite - used for files






49. Difference/original






50. 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.