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






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






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






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






5. Load/effort






6. Vertical






7. Elongation of grain flow in direction of rolling






8. 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






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






10. Load/area






11. Low pressure

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12. Hard - strong






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






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






15. High pressure

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






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






18. Good high temp wear - tools






19. 10MHZ






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






21. Ma/vr x 100/1






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






23. Produces; harder - stronger and less ductile product






24. AC to DC






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






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






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






28. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






29. Usually used together - strengthening and toughness






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






31. When upper die is dropped on bottom






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






33. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching






34. 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






35. 1%<X<2% carbon. more cementite - used for files






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






37. Better properties that would come from machining






38. 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






39. 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






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






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






42. Hard - brittle






43. 1GHZ






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






45. Resulting from exposure to damp environments and liquids.






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






47. Soft - ductile






48. Area load piston/area of effort piston






49. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






50. 100GHZ+