Exam 7: Luminaires, Ballasts, and Lamps

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The higher the ____________________ of a ballast, the more energy efficient.

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power factor rating

Ballasts are sound rated and are marked with letters "____________________" through "____________________."

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A , F

When making up cord connections on a chain-hung fixture, the conductor with the grooved or raised insulation is the ____ conductor.

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C

Various lamps have particular characteristics, even though they will vary by manufacturer. Match the type of lamp with the typical color associated with it. -Compact fluorescent

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LEDs have a life expectancy of ____ hours.

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Fluorescent fixtures mounted on low-density cellulose fiberboard must generally be mounted ____ the fiberboard surface.

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In general, the only conductors permitted to run into or through a fixture body or integral junction box on a recessed fixture are those supplying that fixture. Other conductors are permitted to run through the fixture body or outlet box only when the lighting fixture is marked "____________________".

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Discuss where the branch circuit is installed when wiring lighting fixtures.

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Various lamps have particular characteristics, even though they will vary by manufacturer. Match the type of lamp with the typical color associated with it. -Incandescent

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The National Electrical Code does not address the issue of "spill lighting" or "light pollution" from one property to another because unwanted illumination is not a(n) ____________________ issue. However, building codes sometimes have rules on this subject.

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All fluorescent ballasts other than simple reactance type, both for new and replacement installations, must have ____________________ built into the ballast.

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Overheating of lighting fixtures, which often results in fires, is most often caused by ____.

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The NEC requires that when a suspended ceiling grid is used to support lay-in type lighting fixtures, ____.

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Leaving fluorescent lamps on for long periods of time ____ lamp life.

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Various lamps have particular characteristics, even though they will vary by manufacturer. Match the type of lamp with the typical color associated with it. -Halogen

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Lighting fixtures are often supplied with separate trims, lenses, diffusers, etc. Discuss how this relates to NEC 110.3(B).

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Information about what types of lighting fixtures are suitable for which types of installations can be found in the ____.

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Fixture whips used with fixtures in suspended ceilings are permitted to be of various types of cables or conductors in flexible raceways. Regardless of the wiring method used, fixture whips are permitted to be a maximum of ____ long between outlet box and fixture.

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Various lamps have particular characteristics, even though they will vary by manufacturer. Match the type of lamp with the typical color associated with it. -LED

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A cluster of LEDs is called a(n) ____________________.

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