Module 11 - Residential Electrical Services
Residential Electrical Services – Module 11
Electrician Training Study Guide with Practice
Questions (2025–2026).
S
A small residence has a floor area of 900 square feet. 2,700VA
What is its general lighting load?
Per NEC Table 220.54, a household with two dryers has a 100%
demand factor of ____ _.
If a dwelling has two kitchen areas, then the total small four at 1,500VA each
appliance branch circuits required would be __ _.
A lighting load of 2,700VA at 120V has an amperage of 22.5A
__________.
When used as a grounding electrode, a ground ring must 20' (6.0 m) long
be at least ____ _.
When a screw is used as a main bonding jumper, it must green
be colored _____ _.
Information on equipment grounding for computers is NEC Section 250.114
found in _____ _.
Per NEC Section 230.24(B), if the service conductors pass 15' (4.5 m) above the ground
over residential property and driveways or commercial
property that is not subject to truck traffic, the
conductors must be at least __ _.
A residence has conductors installed under a 1" (25 mm) inside the house, and a disconnect is required at the meter base
slab. According to NEC Section 230.6, these conductors
are considered ____ _.
, In three-wire NM cable, the color code of the conductors black, white, and red, with a bare or green grounding conductor
is _____ _.
Which of the following areas of a residence would most unfinished basements
likely use conductors run in conduit?
A branch circuit that supplies a storage-type water heater 25A
with a capacity of 120 gallons (450 L) or less and a
nameplate rating of 20A must be rated at a minimum of
__________.
A branch circuit for lighting has a capacity of 1,800VA. It 1,440VA
should be loaded to no more than __ _.
A metallic outlet box for two No. 12 AWG conductors with eight conductors
a ground wire, cable clamp, a switch, and a looped
conductor over 12" (300 mm) would count as _____ _.
The brass screw on a receptacle connects to the ______ _. ungrounded conductor
The correct operation of a four-way switch requires at two three-way switches
least _____ _.
When installing a hot tub, at least one GFCI-protected 10' (3.0 m) away from the inside wall of the hot tub
receptacle must be located no more than __ _.
The minimum number of small appliance circuits required 2
by the NEC in a kitchen area is _.
When sizing electrical services, at which percentage is 100%
the first 3,000VA is rated at _ _.
According to NEC Section 220.53, a demand factor of fixed appliance loads
75% may be applied to __ _.
The minimum service disconnecting means for a one- 100A
family dwelling is ____ _.
The general lighting load in a residence is 3,600VA at 30A
120V. What is the amperage?
A single-pole GFCI breaker is rated at _____ _. 120VAC
Exposed noncurrent-carrying metal parts of fixed 150V to ground
equipment must be grounded if the equipment operates
with any terminal over
Service drop conductors must be located at a minimum 10' above the ground or other accessible surface
height of _____ _.
Residential Electrical Services – Module 11
Electrician Training Study Guide with Practice
Questions (2025–2026).
S
A small residence has a floor area of 900 square feet. 2,700VA
What is its general lighting load?
Per NEC Table 220.54, a household with two dryers has a 100%
demand factor of ____ _.
If a dwelling has two kitchen areas, then the total small four at 1,500VA each
appliance branch circuits required would be __ _.
A lighting load of 2,700VA at 120V has an amperage of 22.5A
__________.
When used as a grounding electrode, a ground ring must 20' (6.0 m) long
be at least ____ _.
When a screw is used as a main bonding jumper, it must green
be colored _____ _.
Information on equipment grounding for computers is NEC Section 250.114
found in _____ _.
Per NEC Section 230.24(B), if the service conductors pass 15' (4.5 m) above the ground
over residential property and driveways or commercial
property that is not subject to truck traffic, the
conductors must be at least __ _.
A residence has conductors installed under a 1" (25 mm) inside the house, and a disconnect is required at the meter base
slab. According to NEC Section 230.6, these conductors
are considered ____ _.
, In three-wire NM cable, the color code of the conductors black, white, and red, with a bare or green grounding conductor
is _____ _.
Which of the following areas of a residence would most unfinished basements
likely use conductors run in conduit?
A branch circuit that supplies a storage-type water heater 25A
with a capacity of 120 gallons (450 L) or less and a
nameplate rating of 20A must be rated at a minimum of
__________.
A branch circuit for lighting has a capacity of 1,800VA. It 1,440VA
should be loaded to no more than __ _.
A metallic outlet box for two No. 12 AWG conductors with eight conductors
a ground wire, cable clamp, a switch, and a looped
conductor over 12" (300 mm) would count as _____ _.
The brass screw on a receptacle connects to the ______ _. ungrounded conductor
The correct operation of a four-way switch requires at two three-way switches
least _____ _.
When installing a hot tub, at least one GFCI-protected 10' (3.0 m) away from the inside wall of the hot tub
receptacle must be located no more than __ _.
The minimum number of small appliance circuits required 2
by the NEC in a kitchen area is _.
When sizing electrical services, at which percentage is 100%
the first 3,000VA is rated at _ _.
According to NEC Section 220.53, a demand factor of fixed appliance loads
75% may be applied to __ _.
The minimum service disconnecting means for a one- 100A
family dwelling is ____ _.
The general lighting load in a residence is 3,600VA at 30A
120V. What is the amperage?
A single-pole GFCI breaker is rated at _____ _. 120VAC
Exposed noncurrent-carrying metal parts of fixed 150V to ground
equipment must be grounded if the equipment operates
with any terminal over
Service drop conductors must be located at a minimum 10' above the ground or other accessible surface
height of _____ _.
