NEC Final Exam Questions With Correct
Answers
Load |calculations |must |be |performed |in |order |to |determine |the |_____________ |- |CORRECT |
ANSWER✔✔-size |of |the |service |and |feeders
A |feeder |is |defined |as |all |the |circuit |conductors |between |the |__________ |containing |fuses |or |
breakers |that |feed |branch |circuits |- |CORRECT |ANSWER✔✔-service |disconnecting |means |and |
the |panelboard
_______________ |are |included |in |the |calculated |floor |area |of |dwelling |units |- |CORRECT |
ANSWER✔✔-Open |porches
A |scale |ruler |is |used |in |- |CORRECT |ANSWER✔✔-determining |the |location |of |outlets
The |___________ |is |NOT |an |important |piece |of |information |to |gather |before |performing |load |
calculations |- |CORRECT |ANSWER✔✔-location |of |circuit |breakers
The |__________, |including |the |strip |heat |and |blower |motor, |is |necessary |information |for |
calculating |loads |- |CORRECT |ANSWER✔✔-total |volt-ampere |load
The |lighting |load |for |residential |dwelling |units |is |_____________ |volt-amperes |(VA) |per |square
|foot |- |CORRECT |ANSWER✔✔-3
The |____________ |for |each |floor |of |a |one-family |dwelling |shall |be |computed |using |the |
outside |dimensions |- |CORRECT |ANSWER✔✔-floor |area
,_______________ |must |be |included |when |calculating |a |dwelling |unit |service |- |CORRECT |
ANSWER✔✔-Small-appliance |branch |circuits
A |dwelling |unit |must |have |at |least |______________ |small-appliance |branch |circuit(s). |- |
CORRECT |ANSWER✔✔-2
Each |laundry |branch |circuit |is |calculated |at |_______________ |- |CORRECT |ANSWER✔✔-no |less |
than |1500 |volt-amperes
Individual |household |cooking |appliances |rated |more |than |___________ |watts |(volt-amperes) |
can |be |derated |by |using |Table |220.55 |demand |factors |( |and |all |of |the |appliance |notes). |- |
CORRECT |ANSWER✔✔-1750
No |derating |is |allowed |when |there |are |only |one, |two, |or |three |____________ |appliances. |- |
CORRECT |ANSWER✔✔-fastened-in |place
The |term |_______________ |designates |utilization |equipment |commonly |built |in |standardized |
types |and |sizes |and |installed |as |a |unit |the |perform |specific |function(s). |- |CORRECT |
ANSWER✔✔-appliance
Multiplying |voltage |by |amperage |produces |____________. |- |CORRECT |ANSWER✔✔-volt-
amperes |(VA)
A |clothes |dryer |neutral |load |on |a |feeder |can |be |calculated |at |___________%. |- |CORRECT |
ANSWER✔✔-70
Horsepower |ratings |must |be |converted |to |______________ |before |they |can |be |added |to |the |
load |calculation |form. |- |CORRECT |ANSWER✔✔-volt-amperes |(VA)
, The |smaller |of |two |(or |more) |____________ |loads |can |be |omitted, |as |long |as |they |are |never |
energized |simultaneously. |- |CORRECT |ANSWER✔✔-noncoincedent
For |the |purpose |of |the |standard |method |load |calculation |for |a |one-family |dwelling, |the |terms |
neutral |and |____________ |are |synonymous. |- |CORRECT |ANSWER✔✔-grounded
A |demand |factor |of |___________% |can |be |applied |to |the |nameplate |rating |load |of |four |or |
more |fastened-in-place |appliances. |- |CORRECT |ANSWER✔✔-75
In |outdoor |applications, |___________ |grounding |electrode |conductors |must |not |be |installed |
within |18in |(450 |mm) |of |the |earth. |- |CORRECT |ANSWER✔✔-aluminum
______________ |are |not |included |in |calculating |receptacle |loads |for |appliances. |- |CORRECT |
ANSWER✔✔-Air-conditioning |systems
The |exact |nameplate |rating |of |the |clothes |dryer, |even |if |less |than |___________ |volt-amperes |
should |be |used |in |load |calculations. |- |CORRECT |ANSWER✔✔-5000
For |a |service |rated |100 |through |400 |A, |the |service |conductors |supplying |the |entire |load |
associated |with |a |one-family |dwelling |shall |be |permitted |to |have |an |ampacity |not |less |
____________ |% |of |the |service |rating. |- |CORRECT |ANSWER✔✔-83
The |minimum |size |grounding |electrode |conductor |is |____________ |AWG |copper |( |or |4 |AWG |
aluminum). |- |CORRECT |ANSWER✔✔-6
Service-entrance |and |overhead |service |conductors |shall |be |arranged |so |that |
_________________. |- |CORRECT |ANSWER✔✔-water |shall |not |enter |the |service |raceway |or |
equipment
Answers
Load |calculations |must |be |performed |in |order |to |determine |the |_____________ |- |CORRECT |
ANSWER✔✔-size |of |the |service |and |feeders
A |feeder |is |defined |as |all |the |circuit |conductors |between |the |__________ |containing |fuses |or |
breakers |that |feed |branch |circuits |- |CORRECT |ANSWER✔✔-service |disconnecting |means |and |
the |panelboard
_______________ |are |included |in |the |calculated |floor |area |of |dwelling |units |- |CORRECT |
ANSWER✔✔-Open |porches
A |scale |ruler |is |used |in |- |CORRECT |ANSWER✔✔-determining |the |location |of |outlets
The |___________ |is |NOT |an |important |piece |of |information |to |gather |before |performing |load |
calculations |- |CORRECT |ANSWER✔✔-location |of |circuit |breakers
The |__________, |including |the |strip |heat |and |blower |motor, |is |necessary |information |for |
calculating |loads |- |CORRECT |ANSWER✔✔-total |volt-ampere |load
The |lighting |load |for |residential |dwelling |units |is |_____________ |volt-amperes |(VA) |per |square
|foot |- |CORRECT |ANSWER✔✔-3
The |____________ |for |each |floor |of |a |one-family |dwelling |shall |be |computed |using |the |
outside |dimensions |- |CORRECT |ANSWER✔✔-floor |area
,_______________ |must |be |included |when |calculating |a |dwelling |unit |service |- |CORRECT |
ANSWER✔✔-Small-appliance |branch |circuits
A |dwelling |unit |must |have |at |least |______________ |small-appliance |branch |circuit(s). |- |
CORRECT |ANSWER✔✔-2
Each |laundry |branch |circuit |is |calculated |at |_______________ |- |CORRECT |ANSWER✔✔-no |less |
than |1500 |volt-amperes
Individual |household |cooking |appliances |rated |more |than |___________ |watts |(volt-amperes) |
can |be |derated |by |using |Table |220.55 |demand |factors |( |and |all |of |the |appliance |notes). |- |
CORRECT |ANSWER✔✔-1750
No |derating |is |allowed |when |there |are |only |one, |two, |or |three |____________ |appliances. |- |
CORRECT |ANSWER✔✔-fastened-in |place
The |term |_______________ |designates |utilization |equipment |commonly |built |in |standardized |
types |and |sizes |and |installed |as |a |unit |the |perform |specific |function(s). |- |CORRECT |
ANSWER✔✔-appliance
Multiplying |voltage |by |amperage |produces |____________. |- |CORRECT |ANSWER✔✔-volt-
amperes |(VA)
A |clothes |dryer |neutral |load |on |a |feeder |can |be |calculated |at |___________%. |- |CORRECT |
ANSWER✔✔-70
Horsepower |ratings |must |be |converted |to |______________ |before |they |can |be |added |to |the |
load |calculation |form. |- |CORRECT |ANSWER✔✔-volt-amperes |(VA)
, The |smaller |of |two |(or |more) |____________ |loads |can |be |omitted, |as |long |as |they |are |never |
energized |simultaneously. |- |CORRECT |ANSWER✔✔-noncoincedent
For |the |purpose |of |the |standard |method |load |calculation |for |a |one-family |dwelling, |the |terms |
neutral |and |____________ |are |synonymous. |- |CORRECT |ANSWER✔✔-grounded
A |demand |factor |of |___________% |can |be |applied |to |the |nameplate |rating |load |of |four |or |
more |fastened-in-place |appliances. |- |CORRECT |ANSWER✔✔-75
In |outdoor |applications, |___________ |grounding |electrode |conductors |must |not |be |installed |
within |18in |(450 |mm) |of |the |earth. |- |CORRECT |ANSWER✔✔-aluminum
______________ |are |not |included |in |calculating |receptacle |loads |for |appliances. |- |CORRECT |
ANSWER✔✔-Air-conditioning |systems
The |exact |nameplate |rating |of |the |clothes |dryer, |even |if |less |than |___________ |volt-amperes |
should |be |used |in |load |calculations. |- |CORRECT |ANSWER✔✔-5000
For |a |service |rated |100 |through |400 |A, |the |service |conductors |supplying |the |entire |load |
associated |with |a |one-family |dwelling |shall |be |permitted |to |have |an |ampacity |not |less |
____________ |% |of |the |service |rating. |- |CORRECT |ANSWER✔✔-83
The |minimum |size |grounding |electrode |conductor |is |____________ |AWG |copper |( |or |4 |AWG |
aluminum). |- |CORRECT |ANSWER✔✔-6
Service-entrance |and |overhead |service |conductors |shall |be |arranged |so |that |
_________________. |- |CORRECT |ANSWER✔✔-water |shall |not |enter |the |service |raceway |or |
equipment
