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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 method of transmitting signals by changing the frequency of a wave






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






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






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






5. Vertical






6. MA=VR






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






8. These have weaker secondary bonds which allow the stretching






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






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






11. Resulting from exposure to damp environments and liquids.






12. Rubbers






13. Load/area






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






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






16. High pressure

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






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






19. Low pressure

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20. Area load piston/area of effort piston






21. Produces; harder - stronger and less ductile product






22. Elongation of grain flow in direction of rolling






23. Hard - strong






24. 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






25. AC to DC






26. Difference/original






27. Soft - ductile






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






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






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






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






32. Horizontal






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






34. Good wear - case hardening. ball bearings






35. Better properties that would come from machining






36. Mass X gravity X height






37. 1%<X<2% carbon. more cementite - used for files






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






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






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






41. 100khz






42. 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






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






44. Results from the changing anode and cathode regions over the entire surface






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






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






47. When upper die is dropped on bottom






48. 100GHZ+






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