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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. 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.






2. Load/area






3. Rubbers






4. 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






5. Ma/vr x 100/1






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






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






8. Good wear - case hardening. ball bearings






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






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






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






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






14. Low pressure

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15. Produces; harder - stronger and less ductile product






16. 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






17. Load/effort






18. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






19. Vertical






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






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






22. AC to DC






23. When upper die is dropped on bottom






24. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






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






26. Horizontal






27. Good high temp wear - tools






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






29. 100GHZ+






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






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






32. 10MHZ






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






34. Hard - brittle






35. Soft - ductile






36. MA=VR






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






38. 1%<X<2% carbon. more cementite - used for files






39. 1/4 of the wavelength (higher better)






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






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






42. Difference/original






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






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






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






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






47. 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.






48. 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






49. High pressure

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