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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. Load/effort






2. Good wear - case hardening. ball bearings






3. Difference/original






4. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






5. 1/2Xmass X velocity X velocity






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






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






8. 10MHZ






9. These have weaker secondary bonds which allow the stretching






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






11. Good toughness and fatigue. high strength structures






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






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






14. Elongation of grain flow in direction of rolling






15. 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.






16. 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






17. Rubbers






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






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






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






21. 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






22. 100GHZ+






23. Good high temp wear - tools






24. Produces; harder - stronger and less ductile product






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






26. 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






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






28. 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






29. Area load piston/area of effort piston






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






31. When upper die is dropped on bottom






32. 1/4 of the wavelength (higher better)






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






34. 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






35. Soft - ductile






36. Better properties that would come from machining






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






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






39. 1%<X<2% carbon. more cementite - used for files






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






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






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






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






44. Hard - strong






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






46. Area parallel to force






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






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






49. MA=VR






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






Can you answer 50 questions in 15 minutes?



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