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






3. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






4. Better properties that would come from machining






5. Resulting from exposure to damp environments and liquids.






6. Vertical






7. Area parallel to force






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






9. Rubbers






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






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






12. Hard - brittle






13. AC to DC






14. Low pressure

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15. 1/2Xmass X velocity X velocity






16. These have weaker secondary bonds which allow the stretching






17. 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






18. Produces; harder - stronger and less ductile product






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






20. Horizontal






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






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






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






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






25. 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






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






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






28. Area load piston/area of effort piston






29. 1/4 of the wavelength (higher better)






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






31. Load/effort






32. High pressure

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33. Usually used together - strengthening and toughness






34. Good toughness and fatigue. high strength structures






35. 100khz






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






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






38. Elongation of grain flow in direction of rolling






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






40. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






41. 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.






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






43. When upper die is dropped on bottom






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






45. 100GHZ+






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






47. 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






48. Resulting from combined effect of stresses set up within the metal






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






50. Mass X gravity X height