Test your basic knowledge |

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. Area load piston/area of effort piston






3. 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






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






5. Difference/original






6. Hard - brittle






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






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






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






10. 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






11. Soft - ductile






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






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






14. Good high temp wear - tools






15. Vertical






16. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






17. MA=VR






18. Load/effort






19. 1/2Xmass X velocity X velocity






20. Elongation of grain flow in direction of rolling






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






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






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






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






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






26. 1GHZ






27. Horizontal






28. 100khz






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






30. 1%<X<2% carbon. more cementite - used for files






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






32. Mass X gravity X height






33. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






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






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






36. Hard - strong






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






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






39. 100GHZ+






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






41. Ma/vr






42. Ma/vr x 100/1






43. 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






44. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






45. 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.






46. 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.






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






48. These have weaker secondary bonds which allow the stretching






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






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