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






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






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






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






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






6. 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






7. Forming of metal by compressive force above recrystallization point.






8. Usually used together - strengthening and toughness






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






10. Good toughness and fatigue. high strength structures






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






12. MA=VR






13. Produces; harder - stronger and less ductile product






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






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






16. Load/area






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






18. Low pressure

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19. Hard - strong






20. 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






21. Ma/vr






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






23. 1%<X<2% carbon. more cementite - used for files






24. Horizontal






25. High pressure

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






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






28. Mass X gravity X height






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






30. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






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






32. Good wear - case hardening. ball bearings






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






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






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






36. Difference/original






37. These have weaker secondary bonds which allow the stretching






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






39. 10MHZ






40. Vertical






41. Resulting from exposure to damp environments and liquids.






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






43. 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






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






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






46. 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






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






48. Area load piston/area of effort piston






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






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