NCCER Electrical level 2
NEC requirements must be adhered to when installing incandescent recessed
lighting fixtures because they - ANSWER are a fire hazard if installed incorrectly
which of the following will shorten the life of a filament in an incandescent lamp? -
ANSWER operating at warmer temperature
chandeliers are a type of - ANSWER suspended lighting fixture
when white light is passed through a prism, how many total colors are visible -
ANSWER 6
Compared to standard incandescent lamps, which of the following provides longer
life and improved light quality when used in a lamp - ANSWER halogen gas
fluorescent lamps with a single pin at each end are known as - ANSWER instant-
start lamps
when installing a surface-mounted fixture weighing more than 50 pounds, it -
ANSWER can be supported by the outlet box if the box is designed and marked to
support more than 50 pounds.
NEC Article 410 contains requirements for installing - ANSWER recessed lighting
fixtures
which of the following contain ballasts that provide high voltage across the lamp's
electrodes at startup, causing then to emit electrons? - ANSWER instant-start lamps
which of the following is an HD ballast category? - ANSWER constant wattage
autotransformer
Light enters the eye through a transparent layer called the - ANSWER cornea
which of the following materials absorbs the most light? - ANSWER Dark red glazed
bricks
The type of high-intensity discharge (HID) lamp that has excellent color rendition is
the - ANSWER metal halide lamp
which of the following describes a color temperature 4,100k and higher - ANSWER
cool in tone with a bias toward blue and greens
The junction box and recessed lighting fixture should be separated by a minimum
distance of - ANSWER 1'
which of the following are often used in conjunction with time clocks to turn off
lighting when it is no longer needed? - ANSWER photo sensors
NEC requirements must be adhered to when installing incandescent recessed
lighting fixtures because they - ANSWER are a fire hazard if installed incorrectly
which of the following will shorten the life of a filament in an incandescent lamp? -
ANSWER operating at warmer temperature
chandeliers are a type of - ANSWER suspended lighting fixture
when white light is passed through a prism, how many total colors are visible -
ANSWER 6
Compared to standard incandescent lamps, which of the following provides longer
life and improved light quality when used in a lamp - ANSWER halogen gas
fluorescent lamps with a single pin at each end are known as - ANSWER instant-
start lamps
when installing a surface-mounted fixture weighing more than 50 pounds, it -
ANSWER can be supported by the outlet box if the box is designed and marked to
support more than 50 pounds.
NEC Article 410 contains requirements for installing - ANSWER recessed lighting
fixtures
which of the following contain ballasts that provide high voltage across the lamp's
electrodes at startup, causing then to emit electrons? - ANSWER instant-start lamps
which of the following is an HD ballast category? - ANSWER constant wattage
autotransformer
Light enters the eye through a transparent layer called the - ANSWER cornea
which of the following materials absorbs the most light? - ANSWER Dark red glazed
bricks
The type of high-intensity discharge (HID) lamp that has excellent color rendition is
the - ANSWER metal halide lamp
which of the following describes a color temperature 4,100k and higher - ANSWER
cool in tone with a bias toward blue and greens
The junction box and recessed lighting fixture should be separated by a minimum
distance of - ANSWER 1'
which of the following are often used in conjunction with time clocks to turn off
lighting when it is no longer needed? - ANSWER photo sensors
