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






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






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






4. Usually used together - strengthening and toughness






5. AC to DC






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






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






8. Vertical






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






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






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






12. Produces; harder - stronger and less ductile product






13. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






14. These have weaker secondary bonds which allow the stretching






15. Resulting from exposure to damp environments and liquids.






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






17. 10MHZ






18. Area load piston/area of effort piston






19. Ma/vr x 100/1






20. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






21. Good wear - case hardening. ball bearings






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






23. Better properties that would come from machining






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






25. 1%<X<2% carbon. more cementite - used for files






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






27. Hard - brittle






28. 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






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






30. 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






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






32. 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






33. Mass X gravity X height






34. A device that converts the AC inside a DC generator to a DC output or converts a DC supply to an AC inside a DC motor.keeping the armature rotating






35. Elongation of grain flow in direction of rolling






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






37. Good high temp wear - tools






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






39. Good toughness and fatigue. high strength structures






40. MA=VR






41. Load/effort






42. 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






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






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






45. 100khz






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






47. High pressure

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48. Rubbers






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






50. 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.







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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