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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. Low pressure

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2. Area load piston/area of effort piston






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






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






5. Area parallel to force






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






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






8. Usually used together - strengthening and toughness






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






10. Soft - ductile






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






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






13. 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






14. 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






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






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






17. When upper die is dropped on bottom






18. Good high temp wear - tools






19. Better properties that would come from machining






20. Produces; harder - stronger and less ductile product






21. 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






22. 1/2Xmass X velocity X velocity






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






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






25. Load/effort






26. MA=VR






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






28. Rubbers






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






30. 100GHZ+






31. 1/4 of the wavelength (higher better)






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






33. Good toughness and fatigue. high strength structures






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






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






36. 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.






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






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






39. Resulting from exposure to damp environments and liquids.






40. Ma/vr x 100/1






41. 10MHZ






42. 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






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






44. Load/area






45. High pressure

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46. Good wear - case hardening. ball bearings






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






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






49. Hard - brittle






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