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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. Good high temp wear - tools






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






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






4. 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






5. Soft - ductile






6. 100GHZ+






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






8. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






9. 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






10. Elongation of grain flow in direction of rolling






11. 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






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






13. Usually used together - strengthening and toughness






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






15. Resulting from exposure to damp environments and liquids.






16. Vertical






17. Better properties that would come from machining






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






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






20. Produces; harder - stronger and less ductile product






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






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






23. Mass X gravity X height






24. Good toughness and fatigue. high strength structures






25. 10MHZ






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






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






28. Area load piston/area of effort piston






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






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






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






32. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






33. 1GHZ






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






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






36. Rubbers






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






38. Hard - strong






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






40. Load/effort






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 Fluorescent light is turned on to expose any left over - I.e in the cracks






42. Horizontal






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






44. Ma/vr






45. AC to DC






46. A flexible communications cable that contains pairs of insulated copper wires that are twisted together for reduction of EMI and RFI and covered with an outer insulating jacket.






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






48. Good wear - case hardening. ball bearings






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






50. MA=VR