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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. Soft - ductile






2. These have weaker secondary bonds which allow the stretching






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






4. Mass X gravity X height






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






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






7. Load/area






8. 10MHZ






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






10. 1GHZ






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






12. 1/2Xmass X velocity X velocity






13. 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






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






15. Hard - brittle






16. When upper die is dropped on bottom






17. Resulting from exposure to damp environments and liquids.






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






19. Good high temp wear - tools






20. 100GHZ+






21. 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






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






23. Elongation of grain flow in direction of rolling






24. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






25. Vertical






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






27. 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.






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. 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






30. 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






31. Low pressure

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






33. Hard - strong






34. 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






35. Rubbers






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






37. AC to DC






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






39. Better properties that would come from machining






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






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






42. High pressure

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






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






45. Ma/vr






46. 1/4 of the wavelength (higher better)






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






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






49. 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






50. Difference/original