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






2. Usually used together - strengthening and toughness






3. AC to DC






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






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






6. 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






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






8. 1/2Xmass X velocity X velocity






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






10. Area load piston/area of effort piston






11. 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.






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






13. Better properties that would come from machining






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






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






16. 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






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






18. Hard - strong






19. Difference/original






20. When upper die is dropped on bottom






21. Produces; harder - stronger and less ductile product






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






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






24. 1%<X<2% carbon. more cementite - used for files






25. These have weaker secondary bonds which allow the stretching






26. Ma/vr x 100/1






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






28. Good high temp wear - tools






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






30. Ma/vr






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






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






33. Load/effort






34. Soft - ductile






35. 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






36. Area parallel to force






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






38. MA=VR






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






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






41. 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.






42. High pressure

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43. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






44. 1/4 of the wavelength (higher better)






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






46. Elongation of grain flow in direction of rolling






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






48. 100khz






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






50. Good wear - case hardening. ball bearings