IEC Final Exam LATEST GRADED A /NEW VERSION
Which of these is the symbol used for a 4-way switch? - CORRECT ANSWER c.$4
Refer to Figure 117.108. The five switches shown adjacent to the bathroom door are to be installed in a
5-gang box. - CORRECT ANSWER False
GFCI protection can be provided for...
Which of these is the symbol used for a 4-way switch? - CORRECT ANSWER c.$4
Refer to Figure 117.108. The five switches shown adjacent to the bathroom door are to be installed in a
5-gang box. - CORRECT ANSWER False
GFCI protection can be provided for receptacles serving kitchen countertop areas in a dwelling by
installing ___. - CORRECT ANSWER any of these
IDCI is an abbreviation for ___. - CORRECT ANSWER Immersion Detection Circuit Interrupter
Some portable appliances use double insulation in place of grounding to provide shock protection to
users. Double-insulated appliances normally have ___ power cords and attachment plug caps. - CORRECT
ANSWER two-wire
Refer to Figure 117.107 to determine the number of wires entering the box. RMC (rigid metal conduit)
with 10 AWG wire is the wiring method used. An equipment grounding conductor will not be installed. A
4-gang masonry box will be used for the switches. The minimum depth of the box is ___ inches. -
CORRECT ANSWER 3 1/2
A bathroom is defined as an area including a basin, with one or more of the following: ___. - CORRECT
ANSWER any of these
Section 250.110 in the NEC® requires all ___ non-current-carrying metal parts of electrical equipment in
bathrooms to be grounded. - CORRECT ANSWER exposed
A 3-gang switch box is to be constructed using metal device (switch) boxes. The box assembly will
contain two three-ways and one dimmer switch. External connectors will be used on the MC cables
entering the box. Remember: MC contains a ground. Three 12-3 cables plus one 12-2 enter the box
assembly. The shallowest boxes you can use are ___" deep. - CORRECT ANSWER 2 3/4
1
,The Code reference that specifies the required number of receptacles in a dwelling hallway is ___. Select
N/A (not applicable) if there is not a Code reference for this. - CORRECT ANSWER 210.52(H)
In a dwelling, how many receptacles are permitted to be installed on the wall within 3 feet of a bathtub?
- CORRECT ANSWER none are permitted
A free-standing cabinet is to be installed in a science classroom at a high school. The plans show a listed
receptacle installed face-up in the cabinet countertop. Does Section 406.5 in the NEC® prohibit this
installation? - CORRECT ANSWER No
In a bathroom in a house, at least one receptacle must be installed within ___ of the outside edge of
each basin, and this receptacle must be located on the wall or partition adjacent to the basin. - CORRECT
ANSWER 36 inches
A free-standing cabinet is to be installed in a science classroom at a high school. The plans show a
receptacle that is to be installed face-up in the cabinet countertop. Does Section 406.5(E) in the NEC®
prohibit this installation? - CORRECT ANSWER No
In a bathroom, exposed non-current-carrying metal parts shall be connected to an equipment grounding
conductor if they are within ___ horizontal feet of a grounded surface or object. - CORRECT ANSWER 5
Article ___ of the NEC® defines a bathroom. - CORRECT ANSWER 100
In a suspended ceiling system, lay-in luminaires shall be securely fastened to the ceiling framing member
by mechanical means such as ___. - CORRECT ANSWER any of these
The Code reference that requires luminaires installed in specific locations (such as wet, damp, or dry) to
have markings identifying the luminaire as suitable for that location is ___. Select N/A (not applicable) if
there is not a Code reference for this. - CORRECT ANSWER 410.10(A)
Are outdoor luminaires permitted to be attached to living trees? - CORRECT ANSWER Yes
2
,How must a luminaire (fixture) be marked that is installed outside, exposed to the weather? - CORRECT
ANSWER Suitable for wet locations
The Code reference that permits or prohibits surface-mounted luminaire installations in shower
enclosures is ___. Select N/A (not applicable) if there is not a Code reference for this. - CORRECT
ANSWER 410.10(D)
As a minimum requirement, luminaires installed on the outside of an office building under a covered
entryway must be marked as ___. - CORRECT ANSWER suitable for damp locations
Refer to Figure 117.202. When all the luminaires are operating, ___ amps is flowing in each circuit
conductor in Cable F. - CORRECT ANSWER 3.4
How much current will this bathroom vanity luminaire draw when connected to a 120-volt branch
circuit? Each lamp has a rating of 60 watts at 120 volts. - CORRECT ANSWER 12
The NEC® permits a surface mounted luminaire (lighting fixture-such as shown below) to be installed on
the ceiling within a shower stall. The shower stall has a 7-foot ceiling. - CORRECT ANSWER False
Partially protected areas, such as under the roof of the open front porch of a house, are considered ___
locations according to the NEC®. - CORRECT ANSWER damp
Which of the following 125-volt, 15- and 20-ampere receptacle(s) installed in kitchens is required to be
connected to one of the two 20-ampere small-appliance circuits serving the kitchen and dining room
areas in a dwelling? - CORRECT ANSWER none of these
The plan view of the kitchen in a restaurant is shown in Figure 117.306. The fewest number of
receptacles that can be installed along the wall in countertop space D (between the range and the ovens)
is ___. - CORRECT ANSWER 0
The plan view of a residential kitchen is shown in Figure 117.306. The fewest number of receptacles that
can be installed along the wall in countertop space B (between the cutting board and the sink) is ___. -
CORRECT ANSWER 3
3
, Section ___ in the NEC® specifies the number of receptacles to be installed along a kitchen countertop in
a house.
Note: Select N/A (not applicable) if there is not an NEC® requirement. - CORRECT ANSWER 210.52(C)(1)
Where installed outside on the patio of your house, receptacles ___ permitted to be connected to one of
the 20-ampere, small-appliance branch circuits serving the kitchen or dining area. - CORRECT ANSWER
are not
Figure 117.308 shows the plan view for a kitchen in a house. At least ___ receptacle(s) must be installed
along the three walls between the doorway and the countertop wall space (9" + left wall + behind roll-
out shelves) per the NEC®. There are no countertops along these walls and the shelves are mounted on
casters so that the floor can be cleaned. - CORRECT ANSWER 2
The fewest number of 20-amp kitchen countertop receptacle circuits that are permitted to be installed in
a kitchen in a house is ___. - CORRECT ANSWER 2
Which of the following 125-volt, 15- and 20-ampere receptacles installed in kitchen and dining room
areas in a dwelling is (are) permitted to be connected to one of the two 20-ampere small-appliance
circuits? - CORRECT ANSWER Not a,b,c or a. gas appliances
A free-standing cabinet is to be installed in a science classroom at a high school. The plans show a
receptacle that is to be installed face-up in the cabinet countertop. Does Section 406.5(E) in the NEC®
prohibit this installation? - CORRECT ANSWER No
When a receptacle is located ___, it is required to be GFCI protected.
I. above the kitchen countertop and within 8 feet of a sink at a restaurant
II. in a bathroom adjacent to a basin in an office building
III. outside on the exterior front wall of an elementary school - CORRECT ANSWER I, II & III
Section ___ in the NEC® requires that receptacles in office building bathrooms be GFCI protected. Select
N/A (not applicable) if there is not a Code reference for this. - CORRECT ANSWER 210.8(B)(1)
4
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