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

Electrical Level 2 Module 3 Questions n n n n n




with Correct Answers | Rated A+ n n n n n n




Through a prism - CORRECT ANSWER -A total of six colors(violet blue green yellow orange red) are
n n n n n n n n n n n n n n n n




visible when passing white light
n n n n n




Standard incandescent light - CORRECT ANSWER -when a filament operates hotter, its life is
n n n n n n n n n n n n n




shortened, making it a trade-off between efficiency and lamp life.
n n n n n n n n n n




Tungsten Halogen Incandescent Lamps - CORRECT ANSWER -The Halogen gas in the lamp accounts
n n n n n n n n n n n n n




for the longer life and excellent lumen maintenance
n n n n n n n n




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




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




Metal Halide Lamps - CORRECT ANSWER -Are the most energy-efficient source of white light. They
n n n n n n n n n n n n n n




have high efficiency (80 to 115 LPW), excellent color rendition, long service life (10,000 to more than
n n n n n n n n n n n n n n n n n




20,000 average hours), and good lumen maintenance
n n n n n n n




NEC Section 410.130(F)(5) - CORRECT ANSWER -All metal halide Lamps except thick-glass PARs must
n n n n n n n n n n n n n




have a containment barrier (lens) or Type O with protected socket.
n n n n n n n n n n n




Color Temp 3000k and lower - CORRECT ANSWER -Warm in tone and slightly enhanced red and
n n n n n n n n n n n n n n n




yellows(Halogen Lamps)
n n

, Color Temp 3500k - CORRECT ANSWER -Moderate tone, producing a balance of warmth and
n n n n n n n n n n n n n




coolness.(metal Halide Lamps)
n n n




Color Temp 4100k and higher - CORRECT ANSWER -Cool in tone, slightly biased toward blues and
n n n n n n n n n n n n n n n




greens. (Fluorescent Lamps)
n n n




Color Temp 5000k - CORRECT ANSWER -Daylight simulating fluorescent lamps
n n n n n n n n n




Instant start lamp electrodes - CORRECT ANSWER -Not preheated. The ballast provide a high voltage
n n n n n n n n n n n n n n




(100v to 1000v) across the electrodes that causes electrons to be emitted from the electrodes.
n n n n n n n n n n n n n n n




Electronic instant-start ballast - CORRECT ANSWER -Lowest system wattage and highest system
n n n n n n n n n n n




efficiency. The lamp life is slightly shorter than with rapid-start ballast.
n n n n n n n n n n n




Constant Wattage Auto transform ballast - CORRECT ANSWER -An HID type ballast with a circuit that
n n n n n n n n n n n n n n n




uses magnetic saturation to maintain better lamp wattage regulation and improved dip
n n n n n n n n n n n n




tolerance. Used mainly with mercury and high pressure sodium lamps
n n n n n n n n n




Incandescent recessed lighting fixtures - CORRECT ANSWER -Generate a considerable amount of
n n n n n n n n n n n




heat within their enclosure and are a definite fire hazard if not properly installed
n n n n n n n n n n n n n n




Suspended lighting fixture - CORRECT ANSWER -Are hung from the ceiling using a chain, aircraft
n n n n n n n n n n n n n n




wire, cord, or metal stem. included in this group are chandeliers and pendant units
n n n n n n n n n n n n n n




NEC article 410 - CORRECT ANSWER -sets forth most of requirements pertaining to the installation
n n n n n n n n n n n n n n




of lighting fixtures.
n n n




NEC article 411 - CORRECT ANSWER -Covers lighting systems of 30v or less
n n n n n n n n n n n n