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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. Rubbers






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






3. Hard - strong






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






5. 1GHZ






6. MA=VR






7. Good toughness and fatigue. high strength structures






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






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






10. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






11. 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






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






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






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






15. 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






16. 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






17. Load/area






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






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






20. Good high temp wear - tools






21. Solid at room temp - weak secondary bonds. can be reheated multiply times.






22. 100GHZ+






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






24. Low pressure

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






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






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






28. High pressure

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






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






31. Horizontal






32. Use of xrays passed through the material to make a visual record of internal structures on specially sensitized film






33. Ma/vr






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






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






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






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






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






39. Better properties that would come from machining






40. 1%<X<2% carbon. more cementite - used for files






41. AC to DC






42. 100khz






43. Soft - ductile






44. Load/effort






45. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses






46. 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.






47. Difference/original






48. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






49. 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






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