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






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






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






4. 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






5. Produces; harder - stronger and less ductile product






6. These have weaker secondary bonds which allow the stretching






7. Ma/vr x 100/1






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






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






10. 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






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






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






13. 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






14. 1/2Xmass X velocity X velocity






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






16. Load/area






17. Good toughness and fatigue. high strength structures






18. Hard - brittle






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






20. 100khz






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






22. Resulting from exposure to damp environments and liquids.






23. 1%<X<2% carbon. more cementite - used for files






24. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






25. Difference/original






26. Rubbers






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






28. Horizontal






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






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






31. Vertical






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






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






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






35. 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.






36. Good wear - case hardening. ball bearings






37. Load/effort






38. Mass X gravity X height






39. Usually used together - strengthening and toughness






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






41. 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






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






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






44. 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






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






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






47. 100GHZ+






48. Soft - ductile






49. When upper die is dropped on bottom






50. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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