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






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






3. Usually used together - strengthening and toughness






4. 1/2Xmass X velocity X velocity






5. Mass X gravity X height






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






7. Hard - strong






8. Load/effort






9. Area load piston/area of effort piston






10. 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






11. These have weaker secondary bonds which allow the stretching






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






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






14. Ma/vr x 100/1






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






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






17. 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.






18. 100GHZ+






19. 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






20. 1GHZ






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






22. Ma/vr






23. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






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






25. 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.






26. High pressure

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27. 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






28. Produces; harder - stronger and less ductile product






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






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






31. 10MHZ






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






33. Good high temp wear - tools






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






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






36. Difference/original






37. Better properties that would come from machining






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






39. 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






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






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






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






43. 100khz






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






45. 1%<X<2% carbon. more cementite - used for files






46. Hard - brittle






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






48. Vertical






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






50. AC to DC