1
Q
What is the minimum clearance in front of an electrical panel?
A
36 inches
2
Q
What is the correct distance for support of Romex at a outlet box?
A
Within 12 inches
3
Q
A
4
Q
What is a service lateral electrical
A
When it does underground
5
Q
What is the most likely cause of a melted insulation on a neutral conductor on a subpanel in a detached building
A
The neutral conductor is loose at the terminal bar
6
Q
What is a neutral
A
a wire that completes the electrical circuit by providing a return path for current back to the power source, acting as a zero-voltage reference point
7
Q
where can nm cable be installed
A
On top of ceiling joists located 6 feet from an attic access opening
8
Q
What is reverse polarity
A
Where the neutral and hot wire are reversed
9
Q
What is the wider blade or a plug or receptacle for
A
The neutral side of the circuit
10
Q
What is the minimum service size for a new residential electrical panel?
A
100 amps, though 200 amps is more common in modern homes.
11
Q
What color wire is typically used for a ground connection?
A
Green or bare copper.
12
Q
: How far should an electrical outlet be installed from a bathroom sink?
A
No more than 3 feet from the sink and no closer than 1 ft, and must be GFCI-protected.
13
Q
What is the minimum clearance required for electrical service drop wires above a driveway?
A
12 feet.
14
Q
What does the term “GFCI” stand for, and where is it required?
A
Ground Fault Circuit Interrupter; required in bathrooms, kitchens, garages, basements, crawl spaces, outdoors, and laundry areas.
15
Q
What is the standard voltage for most residential electrical outlets in the U.S.?
A
120 volts.
16
Q
A
17
Q
Accessible (As applied to wiring methods)
A
Capable of being removed or exposed without damaging the building structure or finish or not permanently closed in by the structure or finish of the building.
18
Q
Ammeter
A
Electrical meter used to measure current, calibrated in amperes.
19
Q
Amp
A
Measurement of electrical current in a circuit at any given time.
20
Q
Ampacity
A
Current-carrying capacity of electric conductors expressed in amperes.
21
Q
Amperage
A
Unit of electric current equivalent to 6.28 quintillion electrons passing a given point in 1 sec.
22
Q
Ampere
A
Flow of electricity through electrical wire.
23
Q
Amprobe
A
Tester that is designed to determine running currents, overloads, and balanced circuits.
24
Q
Armored cable
A
Two or more insulated wires wrapped in a metal sheathing.
25
Bonding
Permanent joining of metallic parts to form an electrically conductive path to ensure electrical continuity and capacity to safely conduct any current likely to be imposed.
26
Bonding Jumper
Reliable conductor to ensure the required electrical conductivity between metal parts required to be electrically connected.
27
Box
Metal or plastic enclosure within which electrical connections are made; used for splitting circuits and connecting switches, receptacles, or fixtures; also referred to as a J-box or Junction box.
28
Branch circuit
Circuit conductors between the final overcurrent device protecting the circuit and outlets.
29
Branch circuit (appliance)
Branch circuit supplying energy to one or more outlets to which appliances are connected. Such circuits have no permanently connected lighting fixtures not part of an appliance.
30
Branch circuit (general purpose)
Branch circuit that supplies many outlets for lighting and appliances.
31
Bus bar
Main power terminal to which circuits are attached through either fuses or circuit breakers. One bus bar serves the hot side; the other serves the neutral side.
32
BX cable
Trade name for a flexible electrical cable with a rubber coating, and armored with a flexible steel outer covering.
33
Cable
Two or more insulated conductors wrapped in a metal or plastic cover.
34
Circuit
Path of electrical flow from a power source through a fixture and return to ground or neutral. Also refers too the tubing, piping, or electrical wire that permits a flow from an energy source back to the energy source.
35
Circuit breaker
Device that interrupts electrical flow automatically in case of an overload in the circuit. The circuit breaker can be reset by either a switch or push-button.
36
Conductor
Wire or some other material that will carry electric energy.
37
Continuity tester
Device used to determine whether the circuit is complete.
38
Continuous load
Load where the maximum current is expected to continue for 3 hours or more.
39
Dimmer
A switch that allows control of a light's intensity.
40
Feeder
All circuit conductors between the service equipment or the source of a separately derived system and the final branch circuit overcurrent device.
41
Fuse
Device that stops the electrical flow in case there is a circuit overload for any reason. Fuses cannot be reset; they must be replaced.
42
Ground
Fault in an electrical circuit allowing electricity to flow into the metal parts of the structure; also known as a short circuit.
43
Ground electricity
Electricity always seeks the shortest path to earth. Neutral wires carry electricity to the ground in all circuits. An electrical panel must have a ground connected to either the copper cold water line or a rod driven into the ground.
44
Ground fault circuit interrupter
GFCI - Safety device that senses any shock hazard and interrupts the flow of electricity in the circuit.
45
Ground wire
Electrical wire that will safely conduct electricity from the structure into the ground.
46
Hot wire
Conductor that carries electricity to a light and/or receptacle.
47
Kilowatt (kw)
Unit of electrical power equal to 1,000 watts (w). A kilowatt hour is the standard measure of electrical consumption.
48
Milli
Combining form denoting one thousandth; for example; 1 millivolt equals one thousandth of a volt.
49
NEC
National electrical code - Set of rules drafted by the National Fire Protection Association governing safe wiring methods. Local codes can be different and take precedence over NEC requirements.
50
Neon tester
Device with a small neon bulb and two leads that proves a circuit is carrying current?
51
Neutral
Conductor that completes the circuit. It always has white insulation on the wire.
52
Open circuit
Interrupted electrical circuit that stops the flow of electricity.
53
Overcurent
Any current in excess of the rated current of equipment or the ampacity of a conductor. It may result from overload, short circuit, or ground fault.
54
Overload
Condition that exists when a circuit is carrying more amperage than the circuit was designed to carry. Overloading causes heat, which causes the wire to get hot and the fuses to blow or the circuit breakers to trip because they are designed to sense heat.
55
Polarized outlets
Outlets that are designed with the neutral slot larger than the hot side. An appliance with a polarized plug can be plugged into only an outlet with the proper polarity.
56
Protector, circuit
Electrical device that will open an electrical circuit if excessive electrical conditions occur.
57
Receptacle
An outlet that provides power to lamps and other electrical appliances; also called a duplex receptacle.
58
Short circuit
Occurs when a hot and a neutral wire contact each other, causing the fuses to blow or the circuit breaker to trip.
59
Volt (v)
Measure of electrical potential. Volts x amps = watts.
60
Voltage control
Device that measures voltage in a circuit and may perform other electrical tests.
61
Watt (w)
Measure of the power an electrical lamp or appliance consumes.
62
In an electrical circuit what forces electricity to flow to appliances?
Voltage
63
What does a complete electrical circuit have?
Voltage, load and path
64
What is the minimum amp for range circuits?
40 amp
65
Where do electrical lines enter a home?
Service entrance
66
Two-wire services is?
115v
67
What determines the rating of the circuit breaker installed on a branch circuit?
Size
68
A central heating appliance should have how many dedicated branch circuits?
One
69
A 14ga copper wire has what amperage?
15
70
What is the maximum allowed bend of conduit?
360 degrees
71
Recessed high-intensity fixtures shall have?
Thermal protection
72
Wiring in fixtures should not be?
Exposed
73
Lampholders in damp areas should be?
Weatherproofed
74
Fixtures should be installed so that combustible materials don't reach what degree?
194 degrees F.
75
What type of wiring consists of single-insulated copper conductors run within wall or ceiling cavities, passing through joist and stud drill-holes via protective porcelain insulating tubes, and supported along their length on nailed-down porcelain knob insulators.
Knob-and-tube
76
Accessible (As applied to wiring methods)
Capable of being removed or exposed without damaging the building structure or finish or not permanently closed in by the structure or finish of the building.
77
Ammeter
Electrical meter used to measure current, calibrated in amperes.
78
Amp
Measurement of electrical current in a circuit at any given time.
79
Ampacity
Current-carrying capacity of electric conductors expressed in amperes.
80
Amperage
Unit of electric current equivalent to 6.28 quintillion electrons passing a given point in 1 sec.
81
Ampere
Flow of electricity through electrical wire.
82
Amprobe
Tester that is designed to determine running currents, overloads, and balanced circuits.
83
Armored cable
Two or more insulated wires wrapped in a metal sheathing.
84
Bonding
Permanent joining of metallic parts to form an electrically conductive path to ensure electrical continuity and capacity to safely conduct any current likely to be imposed.
85
Bonding Jumper
Reliable conductor to ensure the required electrical conductivity between metal parts required to be electrically connected.
86
Box
Metal or plastic enclosure within which electrical connections are made; used for splitting circuits and connecting switches, receptacles, or fixtures; also referred to as a J-box or Junction box.
87
Branch circuit
Circuit conductors between the final overcurrent device protecting the circuit and outlets.
88
Branch circuit (appliance)
Branch circuit supplying energy to one or more outlets to which appliances are connected. Such circuits have no permanently connected lighting fixtures not part of an appliance.
89
Branch circuit (general purpose)
Branch circuit that supplies many outlets for lighting and appliances.
90
Bus bar
Main power terminal to which circuits are attached through either fuses or circuit breakers. One bus bar serves the hot side; the other serves the neutral side.
91
BX cable
Trade name for a flexible electrical cable with a rubber coating, and armored with a flexible steel outer covering.
92
Cable
Two or more insulated conductors wrapped in a metal or plastic cover.
93
Circuit
Path of electrical flow from a power source through a fixture and return to ground or neutral. Also refers too the tubing, piping, or electrical wire that permits a flow from an energy source back to the energy source.
94
Circuit breaker
Device that interrupts electrical flow automatically in case of an overload in the circuit. The circuit breaker can be reset by either a switch or push-button.
95
Conductor
Wire or some other material that will carry electric energy.
96
Continuity tester
Device used to determine whether the circuit is complete.
97
Continuous load
Load where the maximum current is expected to continue for 3 hours or more.
98
Dimmer
A switch that allows control of a light's intensity.
99
Feeder
All circuit conductors between the service equipment or the source of a separately derived system and the final branch circuit overcurrent device.
100
Fuse
Device that stops the electrical flow in case there is a circuit overload for any reason. Fuses cannot be reset; they must be replaced.
101
Ground
Fault in an electrical circuit allowing electricity to flow into the metal parts of the structure; also known as a short circuit.
102
Ground electricity
Electricity always seeks the shortest path to earth. Neutral wires carry electricity to the ground in all circuits. An electrical panel must have a ground connected to either the copper cold water line or a rod driven into the ground.
103
Ground fault circuit interrupter
GFCI - Safety device that senses any shock hazard and interrupts the flow of electricity in the circuit.
104
Ground wire
Electrical wire that will safely conduct electricity from the structure into the ground.
105
Hot wire
Conductor that carries electricity to a light and/or receptacle.
106
Kilowatt (kw)
Unit of electrical power equal to 1,000 watts (w). A kilowatt hour is the standard measure of electrical consumption.
107
Milli
Combining form denoting one thousandth; for example; 1 millivolt equals one thousandth of a volt.
108
NEC
National electrical code - Set of rules drafted by the National Fire Protection Association governing safe wiring methods. Local codes can be different and take precedence over NEC requirements.
109
Neon tester
Device with a small neon bulb and two leads that proves a circuit is carrying current?
110
Neutral
Conductor that completes the circuit. It always has white insulation on the wire.
111
Open circuit
Interrupted electrical circuit that stops the flow of electricity.
112
Overcurent
Any current in excess of the rated current of equipment or the ampacity of a conductor. It may result from overload, short circuit, or ground fault.
113
Overload
Condition that exists when a circuit is carrying more amperage than the circuit was designed to carry. Overloading causes heat, which causes the wire to get hot and the fuses to blow or the circuit breakers to trip because they are designed to sense heat.
114
Polarized outlets
Outlets that are designed with the neutral slot larger than the hot side. An appliance with a polarized plug can be plugged into only an outlet with the proper polarity.
115
Protector, circuit
Electrical device that will open an electrical circuit if excessive electrical conditions occur.
116
Receptacle
An outlet that provides power to lamps and other electrical appliances; also called a duplex receptacle.
117
Short circuit
Occurs when a hot and a neutral wire contact each other, causing the fuses to blow or the circuit breaker to trip.
118
Volt (v)
Measure of electrical potential. Volts x amps = watts.
119
Voltage control
Device that measures voltage in a circuit and may perform other electrical tests.
120
Watt (w)
Measure of the power an electrical lamp or appliance consumes.
121
When can an ungrounded electrical outlet be replaced by a G.F.C.I?
Upstream of the outlet
122
Home Inspection Course
flashcards
Decks in class (18)
# Cards
-
Electrical122
-
Boilers16
-
Cooling3
-
Air conditioning and heat pump130
-
Insulation42
-
Interior35
-
Marketing and starting a business11
-
Pools24
-
Mold43
-
Structural166
-
Property and Building Inspection/Site7
-
Plumbing18
-
Roofing and Flashing103
-
NHIE Prep83
-
Standards of Practice24
-
Common Defects16
-
Environmental11
-
NHIE Terms453
