A ? is a slender filament of drawn metal.
a.cable
b.conductor
c.conduit
d.wire
The correct answer is: wire
The purpose of the conductor is to furnish a path for the flow of electrons.
Select one:
True
False
The correct answer is 'True'.
Conductance is the ? with which a material will conduct electricity.
a.ease
b.difficulty
The correct answer is: ease
A good conductor is a material that will contain many ? .
a.bound electrons
b.floating electrons
c.free electrons
d.inner electrons
The correct answer is: free electrons
A conductor is a single wire or combination of strands of wire not insulated from one
another and capable of carrying an electrical current.
Select one:
True
False
The correct answer is 'True'.
There is no perfect conductor, as all materials offer some opposition to the electron flow.
Select one:
True
False
The correct answer is 'True'.
NEC 310.3(C) generally requires that conductors, where they are installed in raceways, shall be stranded when the conductor size is ? or larger.
a.10 AWG
b.8 AWG
c.6 AWG
d.none of the above
The correct answer is: 8 AWG
Steel conduit ? conduct electricity.
a.will
b.will not
The correct answer is: will
A hard-drawn solid copper conductor will have ? tensile strength than a soft-drawn
copper conductor.
a.less
b.more
The correct answer is: more
Which statement(s) is/are true, when comparing copper conductors to aluminum
conductors?
a.Aluminum has a higher melting point than copper.
b.Copper has a higher tensile strength than aluminum.
c.Both a. and b.
d.Neither a. nor b.
The correct answer is: Copper has a higher tensile strength than aluminum.
The title of Article 310 of the NEC is ? .
a.Cabinets, Cutout Boxes, and Meter Sockets
b.Conductors for General Wiring
c.Wiring Methods
d.Wiring Methods and Materials
The correct answer is: Conductors for General Wiring
Which of the following is not a metal material recognized by the Code in 311.12(B) for electrical conductors?
a.Aluminum
b.Copper
c.Copper-clad aluminum
d.Silver
The correct answer is: Silver
According to Section 110.5, when the Code refers only to a conductor size and the
material of the conductor is not specified, the Code intends the use of ? .
a.aluminum
b.aluminum, copper-clad aluminum or copper
c.copper
d.copper or aluminum
The correct answer is: copper
Aluminum conductors are terminated in a switch with the use of copper lugs. According to Section 110.14, this is generally ? .
a.acceptable
b.a violation
The correct answer is: a violation
The cross-sectional area of a solid, copper-clad aluminum conductor must contain a
minimum of ? copper.
a.2%
b.5%
c.10%
d.15%
The correct answer is: 10%
NEC Section 310.3(A) establishes the minimum size conductors generally permitted to be used for voltage ratings up to and including 2,000 volts as ? copper or ? aluminum.
a.16 AWG / 14 AWG
b.14 AWG / 12 AWG
c.12 AWG / 14 AWG
d.12 AWG / 12 AWG
The correct answer is: 14 AWG / 12 AWG
Steel conduit may be used as an equipment grounding conductor as it is capable of
conducting electrons under fault conditions.
Select one:
True
False
The correct answer is 'True'.
Which statement(s) is/are true when silver is used as a conductor?
a.Care must be taken when working with silver-plated contacts.
b.Silver is a better conductor than copper.
c.Both a. and b.
d.Neither a. nor b.
The correct answer is: Both a. and b.
A stranded conductor used as a single conductor is often referred to as a cable.
Select one:
True
False
The correct answer is 'True'.
A multiple conductor cable is a combination of two or more insulated conductors under a common jacket.
Select one:
True
False
The correct answer is 'True'.
This question is based on Table 8, Chapter 9, of the NEC, titled “Conductor Properties.”
Ohm/kFT, as used in Table 8, means ohms per one thousand feet.
Table 8 has a different resistance listing for a solid and a stranded 10 AWG copper
conductor.
Select one:
True
False
The correct answer is 'True'.
This question is based on Table 8, Chapter 9, of the NEC, titled “Conductor Properties.”
Ohm/1,000 ft., as used in Table 8, means ohms per one thousand feet.
The resistance of a stranded, 8 AWG copper conductor is slightly ? than a solid
conductor.
a.less
b.more
The correct answer is: more
This question is based on Table 8, Chapter 9, of the NEC, titled “Conductor Properties.”
Ohm/1,000 ft., as used in Table 8, means ohms per one thousand feet.
How many strands of wire are used in the makeup of 6 AWG stranded conductor?
a.1
b.7
c.19
d.37
e.61
The correct answer is: 7
This question is based on Table 8, Chapter 9, of the NEC, titled “Conductor Properties.”
Ohm/1,000 ft., as used in Table 8, means ohms per one thousand feet.
How many strands of wire are used in the makeup of 1 AWG stranded conductor?
a.1
b.7
c.19
d.37
e.61
The correct answer is: 19
This question is based on Table 8, Chapter 9, of the NEC, titled “Conductor Properties.”
Ohm/1,000 ft., as used in Table 8, means ohms per one thousand feet.
How many strands of wire are used in the makeup of 4/0 AWG stranded conductor?
a.1
b.7
c.19
d.37
e.61
The correct answer is: 19
This question is based on Table 8, Chapter 9, of the NEC, titled “Conductor Properties.”
Ohm/1,000 ft., as used in Table 8, means ohms per one thousand feet.
How many strands of wire are used in the makeup of 500 kcmil stranded conductor?
a.1
b.7
c.19
d.37
e.61
The correct answer is: 37
This question is based on Table 8, Chapter 9, of the NEC, titled “Conductor Properties.”
Ohm/1,000 ft., as used in Table 8, means ohms per one thousand feet.
What is the resistance per 1,000 feet of 8 AWG copper uncoated, stranded conductors?
a.0.308
b.0.321
c.0.778
d.0.809
e.1.28
The correct answer is: 0.778
This question is based on Table 8, Chapter 9, of the NEC, titled “Conductor Properties.”
Ohm/1,000 ft., as used in Table 8, means ohms per one thousand feet.
What is the resistance per 1,000 feet of 8 AWG aluminum stranded conductors?
a.0.308
b.0.321
c.0.778
d.0.809
e.1.28
The correct answer is: 1.28