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






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






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






4. 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






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






6. Mass X gravity X height






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






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






9. These have weaker secondary bonds which allow the stretching






10. Load/area






11. 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






12. Horizontal






13. Ma/vr






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






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






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






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






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






20. Hard - strong






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






22. Load/effort






23. 1/4 of the wavelength (higher better)






24. 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






25. Rubbers






26. 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






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






28. 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






29. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






30. 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.






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






32. Area load piston/area of effort piston






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






34. Usually used together - strengthening and toughness






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






36. Elongation of grain flow in direction of rolling






37. Resulting from exposure to damp environments and liquids.






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






39. Soft - ductile






40. 1/2Xmass X velocity X velocity






41. 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.






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






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






44. When upper die is dropped on bottom






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






46. Area parallel to force






47. AC to DC






48. 10MHZ






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






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