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






2. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






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






4. Low pressure

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






6. 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






7. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






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






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






10. 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






11. Hard - brittle






12. Load/effort






13. Produces; harder - stronger and less ductile product






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






15. 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






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






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






18. Mass X gravity X height






19. Ma/vr






20. Elongation of grain flow in direction of rolling






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






22. Difference/original






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






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






25. 100khz






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






27. 10MHZ






28. Vertical






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






30. Good wear - case hardening. ball bearings






31. Better properties that would come from machining






32. 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






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






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






35. Involves heating the piece above Red heat and then letting it cool in air. causes smaller grains






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






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






38. AC to DC






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






41. 100GHZ+






42. Rubbers






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






44. Area load piston/area of effort piston






45. 1%<X<2% carbon. more cementite - used for files






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






47. 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






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






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






50. 1GHZ







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Can you answer 50 questions in 15 minutes?


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