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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. MA=VR






2. Elongation of grain flow in direction of rolling






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






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






5. Load/area






6. 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






7. Good wear - case hardening. ball bearings






8. 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






9. Area load piston/area of effort piston






10. Good high temp wear - tools






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






12. Better properties that would come from machining






13. 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






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






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






16. Rubbers






17. 1/2Xmass X velocity X velocity






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






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






20. Hard - strong






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






22. 10MHZ






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






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






25. Hard - brittle






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






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






28. 1%<X<2% carbon. more cementite - used for files






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






30. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






31. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






32. 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.






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






34. 100GHZ+






35. Ma/vr






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






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






38. Horizontal






39. AC to DC






40. 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






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






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






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






44. High pressure

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45. Load/effort






46. Resulting from exposure to damp environments and liquids.






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






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






49. 1/4 of the wavelength (higher better)






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