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Technology - Paper 1

Technology - Paper 1

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1. To feed a 400v motor the voltage Stepped down from the sub-station would be...

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2. Which one is not a Transmission voltage?

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3. Which is the worst way of using Harvested Rainwater?

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4. What is Grey water best used for?

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5. A Micro-wind turbine swept area is no more than (max 2.2m blades).

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6. What Fossil fuel is used to produce steam?

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7. Which is the best location for wind turbines?

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8. Which one doesn’t need Fossil fuel to produce steam?

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9. Which one of the following is the main fuel for Biomass?

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10. Name the Earthing system in the picture.

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11. Name the Earthing System in the picture.

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12. Name the Earthing System in the picture.

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13. What type of Earthing systems is this?

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14. What type of Earthing Systems is this?

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15. What type of Earthing Systems is this?

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16. The Earth return path within the suppliers cable of a TN-C-S System is the...

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17. Name the following fixing…

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18. Which correction factor is used for Grouping of cables?

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19. Which protective device would protect against Overload and Earth Fault protection?

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20. Which protective device would not protect against Overload protection?

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21. Why is a copper link used when joining two pieces of Steel trunking?

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22. What type of conduit would be used as a cpc?

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23. Which protective device would protect against Earth Fault protection?

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24. What would be a cheap way of installing an SWA 4 core cable to a Distribution board?

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25. Which DATA cable would be used if there are lots of computers in use?

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26. What would be the minimum size of trunking for single core 70º thermoplastic insulation cables: 10 x 4mm², 10 x 4mm², 10 x 10mm².

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27. What is the minimum conduit size for a straight run containing the following single core thermoplastic insulation cables, 2 x 1.5mm2, 3 x 2.5mm2 and 3 x 4mm2.

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28. What is the symbol shown below?

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29. What is the symbol shown below?

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30. If Band 1 and Band 2 circuits are in the same trunking they must be…

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31. What would be the voltage drop for a two-core 2.5mm2 700Thermoplastic insulated and sheathed flat cable feeding a load of 18A and the length is 22m?

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32. What is EWR used for?

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33. Which one of the following is a Statutory document?

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34. What document would list lighting, fittings, type and size of cables?

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35. When using tools and electrical equipment what regulations would cover these?

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36. Which one of these defines a metal radiator which is fixed to a wall?

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37. Which one of these defines a metal conduit which is fixed to a wall where it drops down to a light switch?

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38. Which one of the following is the most common material used for cables suspended by pylons used for transmission systems?

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39. what is the maximum length of span for cables between buildings with no intermediate support?

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40. what is the minimum internal radii factor for cable bends if the cable has less than 10mm diameter?

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