NCCER Ch 9 Review

Quiz
•
Physics
•
12th Grade
•
Hard
+2
Standards-aligned
Kevon Kirton
Used 5+ times
FREE Resource
34 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The maximum size solid wire that should be terminated in pull boxes and disconnects is
No. 6
No. 8
No. 10
No. 12
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Compact stranding is used
when installing larger conduit sizes
when decreasing the ampacity of an existing service
with aluminum conductors
in corrosive environments
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The ampacity ratings of conductors can be found in
NEC Chapter 1
NEC Articles 348 through 352
NEC Tables 310.16 through 310.21
NEC Chapter 9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To determine the ampacity of copper conductors where conductors are used as a single conductor in free air at ambient temperatures of 30°C (86°F), use
NEC Table 310.16
NEC Table 310.17
NEC Table 310.18
NEC Table 310.19
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Polyethylene (PE) is used primarily for
the manufacture of TW and THW insulation
insulation of control and communication wiring
high-voltage cables
high-temperature insulation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A type of thermoset insulation is
RHW
THW
THHW
PVC
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What letter must be included in the marking of a conductor if it is to be used in a wet, outdoor application?
D
O
I
W
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