NCCER ELECTRICAL MODULE 9 CONDUCTORS AND
CABLES QUESTIONS WITH CORRECT ANSWERS GRADED
A+
Telephone wiring in a plenum space is likely to use _______. - ✔✔ Teflon insulation
Using NEC Table 402.5, the allowable ampacity of No.14 AWG fixture wire is ___. - ✔✔ 17
amps
The temperature rating of services rating of service-entrance cable when the cable is not marked
otherwise is_____. - ✔✔ 75 degrees Cel(167 degrees Fharen)
Which of the following is the most common type of jacket? - ✔✔ Polyethylene
Which of the following is true when pulling conductors? - ✔✔ If a pull is expected to be
difficult, a pull line should be used rather than a fish tape.
Large conductors are likely to require the use of _____. - ✔✔ Electrically driven power pullers.
The maximum size sold wire that should be terminated in pull boxes and disconnects is ____. -
✔✔ No.8
Compact stranding is used _______. - ✔✔ With aluminum conductors
, The ampacity ratings of conductors can be found in _______. - ✔✔ NEC Tables 310.16 through
310.21
To determine the ampacity of copper conductors where conductors are used as a single conductor
in free air at ambient temperatures of 30 degrees Cel (86 degrees Fharn), use_______. - ✔✔
NEC Table 310.17
Polyethylene (PE) is used primarily for - ✔✔ insulation of control and communication wiring
The slandered system of wire sizes in the United Stated is known as the _______. - ✔✔
American Wire Gauge (AWG) system
Wire sizes of No._ or larger are shown only as stranded. - ✔✔ No.6
The purpose of stranding is to increase ________. - ✔✔ The Flexibility of the wire
A circular mil is a circle that has a diameter of ______. - ✔✔ 1 mil
A mil is ____. - ✔✔ 0.001 inch
Aluminum conductors have a _______. - ✔✔ Higher resistance
The conductivity of aluminum is approximately ______ that of copper. - ✔✔ 2/3
The grounding conductor may be _____. - ✔✔ bare, green, or green with a yellow stripe
CABLES QUESTIONS WITH CORRECT ANSWERS GRADED
A+
Telephone wiring in a plenum space is likely to use _______. - ✔✔ Teflon insulation
Using NEC Table 402.5, the allowable ampacity of No.14 AWG fixture wire is ___. - ✔✔ 17
amps
The temperature rating of services rating of service-entrance cable when the cable is not marked
otherwise is_____. - ✔✔ 75 degrees Cel(167 degrees Fharen)
Which of the following is the most common type of jacket? - ✔✔ Polyethylene
Which of the following is true when pulling conductors? - ✔✔ If a pull is expected to be
difficult, a pull line should be used rather than a fish tape.
Large conductors are likely to require the use of _____. - ✔✔ Electrically driven power pullers.
The maximum size sold wire that should be terminated in pull boxes and disconnects is ____. -
✔✔ No.8
Compact stranding is used _______. - ✔✔ With aluminum conductors
, The ampacity ratings of conductors can be found in _______. - ✔✔ NEC Tables 310.16 through
310.21
To determine the ampacity of copper conductors where conductors are used as a single conductor
in free air at ambient temperatures of 30 degrees Cel (86 degrees Fharn), use_______. - ✔✔
NEC Table 310.17
Polyethylene (PE) is used primarily for - ✔✔ insulation of control and communication wiring
The slandered system of wire sizes in the United Stated is known as the _______. - ✔✔
American Wire Gauge (AWG) system
Wire sizes of No._ or larger are shown only as stranded. - ✔✔ No.6
The purpose of stranding is to increase ________. - ✔✔ The Flexibility of the wire
A circular mil is a circle that has a diameter of ______. - ✔✔ 1 mil
A mil is ____. - ✔✔ 0.001 inch
Aluminum conductors have a _______. - ✔✔ Higher resistance
The conductivity of aluminum is approximately ______ that of copper. - ✔✔ 2/3
The grounding conductor may be _____. - ✔✔ bare, green, or green with a yellow stripe
