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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. Mass X gravity X height






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






4. Elongation of grain flow in direction of rolling






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






6. Difference/original






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






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






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






10. 1%<X<2% carbon. more cementite - used for files






11. Good toughness and fatigue. high strength structures






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






13. Vertical






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






15. Better properties that would come from machining






16. Area load piston/area of effort piston






17. Soft - ductile






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






19. Load/effort






20. Good wear - case hardening. ball bearings






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






22. AC to DC






23. 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






24. Good high temp wear - tools






25. When upper die is dropped on bottom






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






27. These have weaker secondary bonds which allow the stretching






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. Area parallel to force






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






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






32. Ma/vr x 100/1






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






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






35. 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






36. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






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






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






39. Resulting from exposure to damp environments and liquids.






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






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






43. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






44. 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.






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






46. 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






47. Load/area






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






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






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