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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 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






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






3. Ma/vr x 100/1






4. When upper die is dropped on bottom






5. 1%<X<2% carbon. more cementite - used for files






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






7. Hard - brittle






8. Mass X gravity X height






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






10. 1/4 of the wavelength (higher better)






11. AC to DC






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






13. Resulting from exposure to damp environments and liquids.






14. Better properties that would come from machining






15. High pressure

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16. Rubbers






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






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






19. Load/effort






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






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






22. 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.






23. Usually used together - strengthening and toughness






24. 1/2Xmass X velocity X velocity






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






26. 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






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






28. Load/area






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






30. Good toughness and fatigue. high strength structures






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






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






33. Hard - strong






34. 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






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. The greater the sulphur the harder the rubber to stretch






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






38. Good wear - case hardening. ball bearings






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






40. Vertical






41. MA=VR






42. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






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






44. 1GHZ






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






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






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






48. 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






49. 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






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