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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. Forming of metal by compressive force above recrystallization point.






2. Mass X gravity X height






3. 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






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






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






6. Ma/vr






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






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






9. Area parallel to force






10. Usually used together - strengthening and toughness






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






12. 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






13. Soft - ductile






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






15. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






16. Good high temp wear - tools






17. 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






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






19. These have weaker secondary bonds which allow the stretching






20. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






21. Vertical






22. Horizontal






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






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






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






26. Hard - brittle






27. 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.






28. Elongation of grain flow in direction of rolling






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






30. Better properties that would come from machining






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






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






33. 100GHZ+






34. Good wear - case hardening. ball bearings






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






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






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






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






39. Area load piston/area of effort piston






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






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






42. 100khz






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






44. MA=VR






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






46. 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.






47. Produces; harder - stronger and less ductile product






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






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






50. When upper die is dropped on bottom