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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. MA=VR






2. 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






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






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






5. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






6. 10MHZ






7. Horizontal






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






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






10. Good wear - case hardening. ball bearings






11. 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






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






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






14. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






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






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






17. Mass X gravity X height






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






19. 1/4 of the wavelength (higher better)






20. Ma/vr






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






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






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






24. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






25. 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






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






27. Load/area






28. When upper die is dropped on bottom






29. Ma/vr x 100/1






30. Area load piston/area of effort piston






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






32. Better properties that would come from machining






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






34. Soft - ductile






35. 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






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






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






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






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






40. Good toughness and fatigue. high strength structures






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






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






43. Produces; harder - stronger and less ductile product






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






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






46. Elongation of grain flow in direction of rolling






47. 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






48. 100GHZ+






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






50. AC to DC