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Engineering Studies

Subject : engineering
Instructions:
  • Answer 50 questions in 20 minutes. 2 minutes extra for reading the instructions.
  • 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. High pressure


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






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






4. Good toughness and fatigue. high strength structures






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






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






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






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






9. These have weaker secondary bonds which allow the stretching






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






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






12. Better properties that would come from machining






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






14. 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






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






16. Difference/original






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






18. 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






19. Load/area






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






21. 100GHZ+






22. 1/2Xmass X velocity X velocity






23. Can be reflected of the ionosphere - 3 to 30 megahertz






24. 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






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






26. Horizontal






27. Area load piston/area of effort piston






28. Hard - strong






29. Rubbers






30. 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






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






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






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






34. 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






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






36. Ma/vr x 100/1






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






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






39. Good high temp wear - tools






40. Good wear - case hardening. ball bearings






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






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






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






44. Mass X gravity X height






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






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






47. Low pressure


48. 1%<X<2% carbon. more cementite - used for files






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






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