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






2. When upper die is dropped on bottom






3. Area load piston/area of effort piston






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






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






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






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






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. Load/area






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






11. 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






12. Mass X gravity X height






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






14. 1%<X<2% carbon. more cementite - used for files






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






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






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






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






19. High pressure

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






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






22. Usually used together - strengthening and toughness






23. Rubbers






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






25. Resulting from exposure to damp environments and liquids.






26. Good wear - case hardening. ball bearings






27. Ma/vr x 100/1






28. 1GHZ






29. Difference/original






30. 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.






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






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






33. Hard - strong






34. Load/effort






35. Soaked cast iron at 870c for long time then cooled slow






36. Good toughness and fatigue. high strength structures






37. 100khz






38. Produces; harder - stronger and less ductile product






39. MA=VR






40. 1/4 of the wavelength (higher better)






41. Good high temp wear - tools






42. Area parallel to force






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






44. Better properties that would come from machining






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






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






47. 10MHZ






48. 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.






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






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