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






2. 10MHZ






3. AC to DC






4. 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






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






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






7. 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






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






9. Hard - brittle






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






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






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






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






14. Mass X gravity X height






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






16. The greater the sulphur the harder the rubber to stretch






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






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






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






20. 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






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






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






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






24. Good high temp wear - tools






25. Elongation of grain flow in direction of rolling






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






27. Better properties that would come from machining






28. 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






29. 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






30. High pressure

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31. Horizontal






32. Ma/vr






33. 100GHZ+






34. Area load piston/area of effort piston






35. Good toughness and fatigue. high strength structures






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






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






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






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






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






41. 1GHZ






42. Rubbers






43. Usually used together - strengthening and toughness






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






45. Soft - ductile






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






47. Area parallel to force






48. Difference/original






49. 100khz






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