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






2. Load/effort






3. 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






4. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






5. Good wear - case hardening. ball bearings






6. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






7. Low pressure

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8. 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






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






10. MA=VR






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






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






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 Fluorescent light is turned on to expose any left over - I.e in the cracks






14. These have weaker secondary bonds which allow the stretching






15. Mass X gravity X height






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






17. 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






18. 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.






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






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






21. Resulting from exposure to damp environments and liquids.






22. Soft - ductile






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






24. High pressure

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






26. Hard - strong






27. 100GHZ+






28. Area load piston/area of effort piston






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






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






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






32. 1/2Xmass X velocity X velocity






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






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






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






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






37. 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.






38. Vertical






39. Difference/original






40. Load/area






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






42. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.






43. Rubbers






44. Ma/vr






45. Ma/vr x 100/1






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






47. Elongation of grain flow in direction of rolling






48. Good toughness and fatigue. high strength structures






49. Usually used together - strengthening and toughness






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