Module 11 – Residential Electrical Services – electrical systems concepts, service installation,
and revision material
2,700VA - ANS ✔✔A small residence has a floor area of 900 square feet. What is its general
lighting load?
100% - ANS ✔✔Per NEC Table 220.54, a household with two dryers has a demand factor of
__________.
four at 1,500VA each - ANS ✔✔If a dwelling has two kitchen areas, then the total small
appliance branch circuits required would be __________.
22.5A - ANS ✔✔A lighting load of 2,700VA at 120V has an amperage of __________.
20' (6.0 m) long - ANS ✔✔When used as a grounding electrode, a ground ring must be at least
__________.
green - ANS ✔✔When a screw is used as a main bonding jumper, it must be colored
__________.
NEC Section 250.114 - ANS ✔✔Information on equipment grounding for computers is found in
__________.
15' (4.5 m) above the ground - ANS ✔✔Per NEC Section 230.24(B), if the service conductors
pass over residential property and driveways or commercial property that is not subject to truck
traffic, the conductors must be at least __________.
inside the house, and a disconnect is required at the meter base - ANS ✔✔A residence has
conductors installed under a 1" (25 mm) slab. According to NEC Section 230.6, these conductors
are considered __________.
, black, white, and red, with a bare or green grounding conductor - ANS ✔✔In three-wire NM
cable, the color code of the conductors is __________.
unfinished basements - ANS ✔✔Which of the following areas of a residence would most likely
use conductors run in conduit?
25A - ANS ✔✔A branch circuit that supplies a storage-type water heater with a capacity of 120
gallons (450 L) or less and a nameplate rating of 20A must be rated at a minimum of
__________.
1,440VA - ANS ✔✔A branch circuit for lighting has a capacity of 1,800VA. It should be loaded to
no more than __________.
eight conductors - ANS ✔✔A metallic outlet box for two No. 12 AWG conductors with a ground
wire, cable clamp, a switch, and a looped conductor over 12" (300 mm) would count as
__________.
ungrounded conductor - ANS ✔✔The brass screw on a receptacle connects to the __________.
two three-way switches - ANS ✔✔The correct operation of a four-way switch requires at least
__________.
10' (3.0 m) away from the inside wall of the hot tub - ANS ✔✔When installing a hot tub, at least
one GFCI-protected receptacle must be located no more than __________.
2 - ANS ✔✔The minimum number of small appliance circuits required by the NEC in a kitchen
area is _____.
and revision material
2,700VA - ANS ✔✔A small residence has a floor area of 900 square feet. What is its general
lighting load?
100% - ANS ✔✔Per NEC Table 220.54, a household with two dryers has a demand factor of
__________.
four at 1,500VA each - ANS ✔✔If a dwelling has two kitchen areas, then the total small
appliance branch circuits required would be __________.
22.5A - ANS ✔✔A lighting load of 2,700VA at 120V has an amperage of __________.
20' (6.0 m) long - ANS ✔✔When used as a grounding electrode, a ground ring must be at least
__________.
green - ANS ✔✔When a screw is used as a main bonding jumper, it must be colored
__________.
NEC Section 250.114 - ANS ✔✔Information on equipment grounding for computers is found in
__________.
15' (4.5 m) above the ground - ANS ✔✔Per NEC Section 230.24(B), if the service conductors
pass over residential property and driveways or commercial property that is not subject to truck
traffic, the conductors must be at least __________.
inside the house, and a disconnect is required at the meter base - ANS ✔✔A residence has
conductors installed under a 1" (25 mm) slab. According to NEC Section 230.6, these conductors
are considered __________.
, black, white, and red, with a bare or green grounding conductor - ANS ✔✔In three-wire NM
cable, the color code of the conductors is __________.
unfinished basements - ANS ✔✔Which of the following areas of a residence would most likely
use conductors run in conduit?
25A - ANS ✔✔A branch circuit that supplies a storage-type water heater with a capacity of 120
gallons (450 L) or less and a nameplate rating of 20A must be rated at a minimum of
__________.
1,440VA - ANS ✔✔A branch circuit for lighting has a capacity of 1,800VA. It should be loaded to
no more than __________.
eight conductors - ANS ✔✔A metallic outlet box for two No. 12 AWG conductors with a ground
wire, cable clamp, a switch, and a looped conductor over 12" (300 mm) would count as
__________.
ungrounded conductor - ANS ✔✔The brass screw on a receptacle connects to the __________.
two three-way switches - ANS ✔✔The correct operation of a four-way switch requires at least
__________.
10' (3.0 m) away from the inside wall of the hot tub - ANS ✔✔When installing a hot tub, at least
one GFCI-protected receptacle must be located no more than __________.
2 - ANS ✔✔The minimum number of small appliance circuits required by the NEC in a kitchen
area is _____.
