Lesson 113 and 114 Quiz
A convenience receptacle has been installed within a fenced equipment yard (inaccessible to the public) behind a hospital to meet the requirements of NEC® Section 210.63 (servicing of equipment). This receptacle is required to be GFCI protected.
True
Metal signs installed inside a fountain are required to be grounded.
True
Objects viewed under the light produced by a sodium lamp have colors that are distorted or not the same color as might be seen in direct sunlight.
True
Does the NEC® have GFCI requirements for 120-volt receptacles along a wet-bar sink countertop in a conference room in an office building?
Yes
Refer to Figure 108.010. If a receptacle is installed in countertop space D, does the NEC® require it to be GFCI protected? This kitchen layout is in a house.
Yes
Repeatedly turning lamps "on" and "off" will cause the lamp to have ___ life than if it were left "on" for the same number of hours.
a shorter
An AFCI breaker is used because it detects ___.
an arcing condition
Power tool cords should be kept away from ___.
hot objects such as drill bits sharp material such as metal studs sheetrock dollies
Many times specifications require the use of incandescent lamps for 120-volt systems to be rated for 125 or 130 volts because operating the lamp at a voltage ___ than its rating extends its life.
lower
Overheating of luminaires (fixtures) which often results in fires is most often caused by ___.
over lamping burying recessed luminaires under thermal insulation
The ___ of light determines the color that is visible.
wavelength
An outlet box is installed for a fixture whip from a recessed luminaire that does not have an integral outlet box. This "J-box" must be located at least ___ from the luminaire.
1 foot
A total of ___ receptacles are to be GFCI protected on EWR Drawings 8 & 9 only.
28
The initial efficacy (lumens-per-watt) of a 45 watt BR30 incandescent lamp (Order Code 20330) lamp is ___.
9.44
A Class P ballast has ___ thermal protection to prevent ballast overheating that could cause fires.
Built-in
LED light sources are substantially different because they operate using ___.
Direct Current
Refer to Figure 113.513. ___ is a single receptacle (NO special functions).
Drawing III
Section 210.8(A)(2) in the NEC® permits a single receptacle in the garage of a home to be unprotected by a GFCI if a freezer is to be connected to this receptacle.
False
Section 406.4(D)(2) in the NEC® permits existing two-wire, non grounded-type receptacles to be replaced with a ___ where no equipment grounding conductor exists.
GFCI receptacle 26 and marked "No Equipment Ground" two-wire non grounding-type receptacle three-wire grounding-type receptacle if fed from an upstream GFCI 26 and marked "GFCI Protected" and "No Equipment Ground"
For a branch circuit supplying several fluorescent luminaires, in-line fuse holders with fuses that are installed in one of the luminaire enclosures will protect the ___ against overload. I. ballast II. branch circuit
I only
A GFCI receptacle is energized and another receptacle is supplied from the load side connections on the GFCI. On the downstream receptacle if you touch the "hot" with one hand and the ___ with the other hand, the GFCI will trip. I. neutral terminal II. ground terminal
II only
Ballasts should be disposed of ___. I. in the trash II. at a hazardous waste incinerator III. at a chemical waste landfill
II or III only
Fluorescent ballasts contain thermal protectors that will open the circuit (disconnect power) to prevent ___. I. short circuits II. ground faults III. overheating
III only
Fluorescent lamps will have a longer life (in hours) if ___. I . they are cleaned frequently II. they are frequently switched "off" III. they are left "on" for long periods of time
III only
As used in the NEC®, SPD is an acronym for ___.
Surge Protective Device