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






2. Hard - strong






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






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






5. Area parallel to force






6. Ma/vr x 100/1






7. 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






8. 1/4 of the wavelength (higher better)






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






10. Load/effort






11. Softening a material such as metal by controlled heating and cooling. This makes the metal less brittle and more easily adaptable. Soaking till austenite then cooling slowly. large grains






12. 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






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






14. 100GHZ+






15. Good toughness and fatigue. high strength structures






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






17. Hard - brittle






18. High pressure

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19. MA=VR






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






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






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






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






24. 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






25. Elongation of grain flow in direction of rolling






26. 1/2Xmass X velocity X velocity






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






28. 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






29. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






30. Ma/vr






31. 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.






32. Usually used together - strengthening and toughness






33. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






34. 1GHZ






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






36. Load/area






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






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






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






40. These have weaker secondary bonds which allow the stretching






41. 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






42. Mass X gravity X height






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






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






45. 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






46. Difference/original






47. Produces; harder - stronger and less ductile product






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






49. 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.






50. 10MHZ