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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. Better properties that would come from machining






2. Usually used together - strengthening and toughness






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






4. 100GHZ+






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






6. High pressure

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






8. Good toughness and fatigue. high strength structures






9. Hard - strong






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






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






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






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






14. Difference/original






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






16. AC to DC






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. Ma/vr






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






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






21. 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






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






23. 100khz






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






25. Mass X gravity X height






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






27. Soft - ductile






28. 1GHZ






29. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






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






31. Load/effort






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






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






34. 1%<X<2% carbon. more cementite - used for files






35. Good wear - case hardening. ball bearings






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






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






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






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






40. When upper die is dropped on bottom






41. 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.






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






43. 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






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






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






46. Produces; harder - stronger and less ductile product






47. 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






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






49. 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






50. Area parallel to force