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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. Resulting from exposure to damp environments and liquids.






2. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






3. Vertical






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






5. AC to DC






6. 1GHZ






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






8. Softening a material such as metal by controlled heating and cooling. This makes the metal less brittle and more easily adaptable. Soaking till austenite then cooling slowly. large grains






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






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






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






12. 10MHZ






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






14. Good high temp wear - tools






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






16. Low pressure


17. Good wear - case hardening. ball bearings






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






19. Mass X gravity X height






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






21. Better properties that would come from machining






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






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






24. 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






25. 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






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






27. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






28. Produces; harder - stronger and less ductile product






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






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






31. Usually used together - strengthening and toughness






32. 1%<X<2% carbon. more cementite - used for files






33. Rubbers






34. Horizontal






35. Soft - ductile






36. 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






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






38. 1/2Xmass X velocity X velocity






39. 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






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






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






42. When upper die is dropped on bottom






43. Load/area






44. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






45. 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.






46. 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






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






48. Good toughness and fatigue. high strength structures






49. Difference/original






50. 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