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






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






3. Load/effort






4. 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.






5. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






6. Ma/vr






7. AC to DC






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






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






10. These have weaker secondary bonds which allow the stretching






11. High pressure

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






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






14. Good toughness and fatigue. high strength structures






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






16. Good high temp wear - tools






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






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






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






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






21. When upper die is dropped on bottom






22. Resulting from exposure to damp environments and liquids.






23. 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






24. Rubbers






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






26. Mass X gravity X height






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






28. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points






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






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






31. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






32. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






33. Low pressure

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34. Soft - ductile






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






36. 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






37. 100khz






38. Better properties that would come from machining






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






40. 1%<X<2% carbon. more cementite - used for files






41. 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






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






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






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






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






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






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






48. Vertical






49. MA=VR






50. Ma/vr x 100/1