Residential Wiring Final Exam
Review Questions and Answers
A(n) _______ is the circuit conductors between the final overcurrent device and the outlets.
open circuit
branch circuit
feeder circuit
service conductor answer - branch circuit
The circuit conductors between the service equipment and the final branch circuit overcurrent
protection device is a(n)
open circuit
branch circuit
feeder circuit
service conductor answer - feeder circuit
All of the following types of branch circuits are found in residential wiring except:
general lighting
laundry
large appliance
small appliance answer - large appliance
,According to section 310.15(B)(7) in the NEC, the minimum conductor size for a 200-amp
residential service entrance is ______ Cu or _______Al
4 AWG; 2 AWG
3 AWG; 1 AWG
2 AWG; 1/0 AWG
2/0 AWG; 4/0 AWG answer - 2/0 AWG; 4/0 AWG
According to section 310.15(B)(7) in the NEC, the minimum conductor size for a 300-amp
residential service entrance is ______ Cu or _______Al
2 AWG; 1/0 AWG
2/0 AWG; 4/0 AWG
250 kcmil; 350 kcmil
400 kcmil; 600 kcmil answer - 250 kcmkil; 350 kcmil
______ is A common wiring method used on the outside of a house to bring the electrical
power from the point of attachment to the meter socket and then on to the main service
equipment
Triplex cable
Service drop conductors
Service laterals
Service entrance cables answer - Service entrance cable
A(n) ________ Is a plastic or Fiber fitting designed to screw onto the ends of a conduit or cable
connector to provide protection to the conductors
threaded hub
bushing
connector nut
insulated bushing answer - insulated bushing
, Using service entrance cable for the Run between the weather head and the meter socket, the
cable must be supported Within___________ inches of both the Weatherhead and the meter
socket
12
18
24
30 answer - 12
Where underground service cables exit the trench and run up utility pole to the Transformer,
the conductors must be protected from physical damage to a height of ______ feet above final
grade
3
8
10
12 answer - 8
When installing an underground service, a warning tape must be installed at least _____ inches
above the buried service entrance conductors
8
12
18
24 answer - 12
The NEC provides the specifications for working space around electrical equipment in Article
__________
210
200
Review Questions and Answers
A(n) _______ is the circuit conductors between the final overcurrent device and the outlets.
open circuit
branch circuit
feeder circuit
service conductor answer - branch circuit
The circuit conductors between the service equipment and the final branch circuit overcurrent
protection device is a(n)
open circuit
branch circuit
feeder circuit
service conductor answer - feeder circuit
All of the following types of branch circuits are found in residential wiring except:
general lighting
laundry
large appliance
small appliance answer - large appliance
,According to section 310.15(B)(7) in the NEC, the minimum conductor size for a 200-amp
residential service entrance is ______ Cu or _______Al
4 AWG; 2 AWG
3 AWG; 1 AWG
2 AWG; 1/0 AWG
2/0 AWG; 4/0 AWG answer - 2/0 AWG; 4/0 AWG
According to section 310.15(B)(7) in the NEC, the minimum conductor size for a 300-amp
residential service entrance is ______ Cu or _______Al
2 AWG; 1/0 AWG
2/0 AWG; 4/0 AWG
250 kcmil; 350 kcmil
400 kcmil; 600 kcmil answer - 250 kcmkil; 350 kcmil
______ is A common wiring method used on the outside of a house to bring the electrical
power from the point of attachment to the meter socket and then on to the main service
equipment
Triplex cable
Service drop conductors
Service laterals
Service entrance cables answer - Service entrance cable
A(n) ________ Is a plastic or Fiber fitting designed to screw onto the ends of a conduit or cable
connector to provide protection to the conductors
threaded hub
bushing
connector nut
insulated bushing answer - insulated bushing
, Using service entrance cable for the Run between the weather head and the meter socket, the
cable must be supported Within___________ inches of both the Weatherhead and the meter
socket
12
18
24
30 answer - 12
Where underground service cables exit the trench and run up utility pole to the Transformer,
the conductors must be protected from physical damage to a height of ______ feet above final
grade
3
8
10
12 answer - 8
When installing an underground service, a warning tape must be installed at least _____ inches
above the buried service entrance conductors
8
12
18
24 answer - 12
The NEC provides the specifications for working space around electrical equipment in Article
__________
210
200
