Test your basic knowledge |

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. 1/4 of the wavelength (higher better)






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






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






4. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles






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






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






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






8. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear






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






10. Hard - brittle






11. Rubbers






12. Ma/vr






13. Low pressure

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






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






16. 1%<X<2% carbon. more cementite - used for files






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






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






19. Used where scarifical anodes cannot supply enough protection - offshore oil rigs - buried pipes - big things. protection is provided by connecting a rectifier to provide a direct current source between the anode and the metal being protected.






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






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






22. Elongation of grain flow in direction of rolling






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






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






25. 1/2Xmass X velocity X velocity






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






27. 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






28. 100khz






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






30. Usually used together - strengthening and toughness






31. Mass X gravity X height






32. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures






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






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






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. 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






37. 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






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






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






40. Better properties that would come from machining






41. AC to DC






42. Vertical






43. Resulting from exposure to damp environments and liquids.






44. Hard - strong






45. MA=VR






46. Ma/vr x 100/1






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. Forming of metal by compressive force above recrystallization point.






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






50. 1GHZ