230+230+230+230= ?
a. 8120
b. 830
c. 232
d. 230
e. 226
correct c
explanation:
all four terms are identical therefore we have 4 (230).
but 4 = 22, and so we can write 22. 230
which is equivalent to 232

Which of the following would be considered a nec code violation in regards to the installation of luminaires? a. an outdoor lighting fixture mounted to a tree b. a five-pound, 12-inch diameter light fixture supported by the screw shell of the lampholder c. florescent lay-in fixtures attached to the framing sections of a suspended ceiling with sheet-metal screws d. track lighting over a sink, 2 feet from a bathtub