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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. When upper die is dropped on bottom






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






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






4. Horizontal






5. Good toughness and fatigue. high strength structures






6. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






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






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






9. Resulting from exposure to damp environments and liquids.






10. High pressure


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






12. Load/effort






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






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






15. 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






16. Usually used together - strengthening and toughness






17. Hard - strong






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






19. AC to DC






20. Area parallel to force






21. Produces; harder - stronger and less ductile product






22. 100GHZ+






23. 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






24. 1%<X<2% carbon. more cementite - used for files






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






26. 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






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






28. Better properties that would come from machining






29. Area load piston/area of effort piston






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






31. 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






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






33. Soft - ductile






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






35. 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






36. Elongation of grain flow in direction of rolling






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






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






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






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






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






42. Good wear - case hardening. ball bearings






43. Rubbers






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






45. 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.






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






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






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






49. 1GHZ






50. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles