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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. Area load piston/area of effort piston






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






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






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






5. MA=VR






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






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






8. Load/effort






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






10. Mass X gravity X height






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






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






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






14. Good toughness and fatigue. high strength structures






15. 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.






16. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






17. AC to DC






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






19. Elongation of grain flow in direction of rolling






20. Rubbers






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






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






23. 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






24. Ma/vr x 100/1






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






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






27. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






28. 1GHZ






29. 10MHZ






30. Horizontal






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






32. 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






33. Produces; harder - stronger and less ductile product






34. Low pressure


35. 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






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






37. Difference/original






38. 1%<X<2% carbon. more cementite - used for files






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






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






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






42. 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






43. 1/2Xmass X velocity X velocity






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






45. Load/area






46. When upper die is dropped on bottom






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






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






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






50. Resulting from exposure to damp environments and liquids.