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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. Elongation of grain flow in direction of rolling






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






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






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






5. 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.






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






7. MA=VR






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






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






10. Rubbers






11. 1GHZ






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






13. Vertical






14. Difference/original






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






16. Good high temp wear - tools






17. Area load piston/area of effort piston






18. High pressure

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19. When upper die is dropped on bottom






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






21. Soft - ductile






22. 100GHZ+






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






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






25. AC to DC






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






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






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






29. 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






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






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






32. 1%<X<2% carbon. more cementite - used for files






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






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






35. Resulting from exposure to damp environments and liquids.






36. Produces; harder - stronger and less ductile product






37. 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






38. Load/area






39. Good wear - case hardening. ball bearings






40. Ma/vr x 100/1






41. 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






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






43. 1/4 of the wavelength (higher better)






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






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






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






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






48. Softening a material such as metal by controlled heating and cooling. This makes the metal less brittle and more easily adaptable. Soaking till austenite then cooling slowly. large grains






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






50. Horizontal