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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. Mass X gravity X height






2. High pressure

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3. Hard - strong






4. Low pressure

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5. 100khz






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






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






8. Rubbers






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






10. Soft - ductile






11. 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






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






13. Load/effort






14. MA=VR






15. 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






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






17. 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






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






19. Resulting from exposure to damp environments and liquids.






20. Ma/vr x 100/1






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






22. Horizontal






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






24. 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.






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






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






27. Difference/original






28. Good toughness and fatigue. high strength structures






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






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






31. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






32. 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






33. Elongation of grain flow in direction of rolling






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






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






37. 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






38. Vertical






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






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






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






42. Usually used together - strengthening and toughness






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






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






45. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






46. Produces; harder - stronger and less ductile product






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






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






49. 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






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