Engineering Studies
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Engineering Studies
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25 Questions

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

2. Rubbers

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

4. 0.3%
5. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool

6. These have weaker secondary bonds which allow the stretching

7. Difference/original

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

9. Better properties that would come from machining

10. Vertical

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

12. Load/effort

13. Hard - brittle

14. 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

15. 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

16. 0.6%0.8% for high strength and wear

17. Mass X gravity X height

18. Resulting from exposure to damp environments and liquids.

19. AC to DC

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

21. 10MHZ

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

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

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

25. 100khz

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