Electrical Level 2 Module 3 Questions with Correct Answers Rated A+

Electrical Level 2 Module 3 Questions
with Correct Answers | Rated A+
Through a prism - CORRECT ANSWER -A total of six colors(violet blue green yellow orange red)
are visible when passing white light



Standard incandescent light - CORRECT ANSWER -when a filament operates hotter, its life is
shortened, making it a trade-off between efficiency and lamp life.



Tungsten Halogen Incandescent Lamps - CORRECT ANSWER -The Halogen gas in the lamp
accounts for the longer life and excellent lumen maintenance



Bi-pin base - CORRECT ANSWER -Both pre-heat and rapid start Lamps have 2 -pin base at each
end.



Single pin - CORRECT ANSWER -Instant start Lamps have single pin at each end of the lamp



Metal Halide Lamps - CORRECT ANSWER -Are the most energy-efficient source of white light.
They have high efficiency (80 to 115 LPW), excellent color rendition, long service life (10,000 to
more than 20,000 average hours), and good lumen maintenance



NEC Section 410.130(F)(5) - CORRECT ANSWER -All metal halide Lamps except thick-glass PARs
must have a containment barrier (lens) or Type O with protected socket.



Color Temp 3000k and lower - CORRECT ANSWER -Warm in tone and slightly enhanced red and
yellows(Halogen Lamps)

, Color Temp 3500k - CORRECT ANSWER -
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Moderate tone, producing a balance of warmth and coolness.(metal Halide Lamps)
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Color Temp 4100k and higher - CORRECT ANSWER -
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Cool in tone, slightly biased toward blues and greens. (Fluorescent Lamps)
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Color Temp 5000k - CORRECT ANSWER -Daylight simulating fluorescent lamps
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Instant start lamp electrodes - CORRECT ANSWER -
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Not preheated. The ballast provide a high voltage (100v to 1000v) across the electrodes that caus
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es electrons to be emitted from the electrodes.
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Electronic instant-start ballast - CORRECT ANSWER - X2 X2 X2 X2 X2 X2




Lowest system wattage and highest system efficiency. The lamp life is slightly shorter than with ra
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pid-start ballast. X2




Constant Wattage Auto transform ballast - CORRECT ANSWER -
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An HID type ballast with a circuit that uses magnetic saturation to maintain better lamp wattage r
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egulation and improved dip X2 X2 X2




tolerance. Used mainly with mercury and high pressure sodium lamps
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Incandescent recessed lighting fixtures - CORRECT ANSWER - X2 X2 X2 X2 X2 X2 X2




Generate a considerable amount of heat within their enclosure and are a definite fire hazard if not
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properly installed X2




Suspended lighting fixture - CORRECT ANSWER - X2 X2 X2 X2 X2 X2




Are hung from the ceiling using a chain, aircraft wire, cord, or metal stem. included in this group ar
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e chandeliers and pendant units
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NEC article 410 - CORRECT ANSWER -
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sets forth most of requirements pertaining to the installation of lighting fixtures.
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NEC article 411 - CORRECT ANSWER -Covers lighting systems of 30v or less
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