Typically, residential panelboards have a ____ hexagon-shaped screw that becomes the main bonding jumper between the Neutral bus and the enclosure when properly installed.
a. green
b. blue
c. yellow
d. purple
a. green
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Manual motor starters are limited to small, normally fractional horsepower motors, and it would be rare to find them controlling motors greater than _______________ horsepower.
Fill in the blank(s) with the appropriate word(s).
According to NEC Article 424, embedded floor heating cable may be spliced with _____.
a. any approved means b. split bolts c. splices identified in the manufacturer's instructions d. wire nuts
The amount of current that flows into a transformer primary when voltage is first applied is called _____ current.
A. magnetizing B. excitation C. activating D. inrush
A floor-plan sketch or diagram of a structure shows:
A. a detailed view of the construction features of each floor and fire protection features. B. an outline of each floor of the building, including walls, partitions, openings, fire protection features, and areas of life hazard. C. a cutaway view of a particular portion of a building in relation to streets and hydrants. D. the building and grounds as they are actually seen in depth by the eye.