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






2. 100khz






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






4. Load/area






5. Low pressure

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6. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






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






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






9. MA=VR






10. 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.






11. When upper die is dropped on bottom






12. Good wear - case hardening. ball bearings






13. 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






14. Produces; harder - stronger and less ductile product






15. 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






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






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






18. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






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






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






21. These have weaker secondary bonds which allow the stretching






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






23. High pressure

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






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






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






27. Usually used together - strengthening and toughness






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






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






30. Good high temp wear - tools






31. 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






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






33. Good toughness and fatigue. high strength structures






34. Ma/vr






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






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






37. 100GHZ+






38. Ma/vr x 100/1






39. 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






40. Better properties that would come from machining






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






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






43. Area load piston/area of effort piston






44. 1/2Xmass X velocity X velocity






45. 10MHZ






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






47. Vertical






48. AC to DC






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






50. 1GHZ







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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