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Code Quiz: Boxes and Faceplates

2015-08-06 05:16:00| Electrical Construction & Maintenance

Faceplates provided for snap switches mounted in boxes shall be installed so as to _________ cover the opening, and where the switch is flush mounted, seat against the finished surface. read more

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Code Quiz: Approved Wiring Methods in Marinas and Boatyards

2015-07-23 17:04:47| Electrical Construction & Maintenance

With respect to wiring methods and materials for marinas and boatyards, when using portable power cables, the power cables shall be rated not less than ___ , and listed for both wet location and sunlight resistance as part of the overall requirements? read more

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Code Quiz: Approved Protection Methods for Wiring in Marinas and Boatyards

2015-07-09 17:45:00| Electrical Construction & Maintenance

With respect to wiring methods and materials for boatyards and marinas, which wiring methods are permitted for protection of wiring above decks of piers and landing stages and below the enclosure that it serves? A) Reinforced thermosetting resin conduit (RTRC) listed for aboveground use. B) Rigid metal conduit (RMC). C) Rigid polyvinyl chloride (PVC) conduit suitable for the location. D) All of the above options are permitted. Find the Answer Answer: D read more

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Code Quiz: Skin-Effect Heating and Pull Boxes

2015-06-25 14:04:19| Electrical Construction & Maintenance

For skin-effect heating, pull boxes installed for pulling the electrically insulated conductor in the ferromagnetic envelope shall be permitted to be buried under the thermal insulation, provided their locations are indicated by ________ markings on the insulation jacket surface and on drawings. read more

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Code Quiz: Identification of Fixed Electric Heating Equipment

2015-06-11 17:17:00| Electrical Construction & Maintenance

The presence of electrically heated pipelines, vessels, or both, shall be evident by posting of appropriate ________ signs or markings at intervals not exceeding ___ along the pipeline or vessel and on or adjacent to equipment in the piping systems that require periodic servicing. read more

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