NEC Final exam questions with correct
answers
406.6(D)A |Universal |Serial |Bus |flush |device |cover |plate |that |additionally |provides |a |night |light |
and |/ |or |___________ |output |connector(s |) |shall |be |listed.
( |a |) |one
( |b |) |two
( |c |) |Class |I
( |d |) |Class |II
Class |II
406.6(D)
RV |feeders |from |208Y |/ |120 |volt |, |3ø |systems |shall |be |permitted |to |include |___________ |.
I. |one |equipment |grounding |conductor
II. |one |grounded |conductor
III. |three |grounded |conductors
( |a |) |I |only
( |b |) |II |only
( |c |) |I |and |II |only
( |d |) |I, |II, |and |III
I |and |II |only
551.72(B)
The |conductors |supplying |the |supplementary |overcurrent |protective |devices |for |fixed |
industrial |process |heating |equipment |shall |be |considered |__________ |conductors |.
( |a |) |supplementary
( |b |) |tap
,( |c |) |by |- |pass
( |d |) |branch |circuit
branch |circuit
425.22(D)
392.10(E)
In |airports |where |maintenance |and |supervision |conditions |ensure |that |only |qualified |persons |
can |access |, |install |, |or |service |the |cable |, |airfield |lighting |cable |used |in |series |circuits |that |are |
rated |up |to |__________ |volts |and |are |powered |by |constant |current |regulators |shall |be |
permitted |to |be |installed |in |cable |trays |.
( |a |) |1000
( |b |) |2500
( |c |) |3000
( |d |) |5000
5,000 |volts
392.10(E)
424.101(A)
Low |voltage |heating |power |unit |shall |be |an |isolating |type |with |a |rated |output |NOT |exceeding |
__________ |volts |peak |ac.
( |a |) |30
( |b |) |42.4
( |c |) |60
( |d |) |25
42.4V |peak |AC
424.101(A)
210.8(C)
GFCI |protection |shall |be |provided |for |lighting |outlets |NOT |exceeding |_________ |volts |installed |
in |crawl |spaces
,( |a |) |30
( |b |) |50
( |c |) |90
( |d |) |120
120V
210.8(C)
All |audio |equipment |operating |at |greater |than |the |low |- |voltage |contact |limit |and |located |
within |__________ |from |the |inside |walls |of |a |storable |or |portable |immersion |pool |shall |be |
grounded |and |shall |be |protected |by |a |GFCI.
( |a |) |6 | '
( |b |) |8 |'
( |c |) |10 |'
( |d |) |12 |'
6'
680.35(D)
Locations |in |which |easily |ignitable |combustible |fibers |are |stored |or |handled |other |than |in |the |
process |of |manufacturing |are |designated |as |__________ |.
( |a |) |nonhazardous
( |b |) |Class |III |, |Division |2
( |c |) |Class |III |, |Division |1
( |d |) |Class |II |, |Division |2
Class |III |, |Division |2
500.5(D)(2)
A |disconnecting |means |is |required |to |disconnect |the |__________ |from |the |circuit.
( |a |) |motor |and |controller
( |b |) |motor
( |c |) |motor |or |controller
( |d |) |controller
, motor |and |controller
430.101
Circuits |and |equipment |operating |at |less |than |50 |volts |must |use |receptacles |that |are |rated |at |
NOT |less |than |__________ |amps |.
(a |) |15
( |b |) |20
( |c |) |25
( |d |) |none |of |these
15 |amps
720.6
Most |incidents |and |injuries |are |initiated |by |__________ |.
( |a |) |equipment |failures
( |b |) |people
( |c |) |incomplete |procedures
( |d |) |inadequate |regulation |enforcement
people
NFPA |70E
Which |of |the |following |organizations |would |maintain |records |of |tested |electrical |equipment |?
( |a |) |Underwriters |' |Laboratories
( |b |) |National |Fire |Protection |Association
( |c |) |National |Electrical |Contractors |Association
( |d |) |IEEE
UL
General |Knowledge
Fastening |of |unbroken |lengths |of |EMT |conduit |can |be |increased |to |a |distance |of |__________ |
from |the |termination |point |where |the |structural |members |do |NOT |readily |permit |fastening |
within |3 |feet
answers
406.6(D)A |Universal |Serial |Bus |flush |device |cover |plate |that |additionally |provides |a |night |light |
and |/ |or |___________ |output |connector(s |) |shall |be |listed.
( |a |) |one
( |b |) |two
( |c |) |Class |I
( |d |) |Class |II
Class |II
406.6(D)
RV |feeders |from |208Y |/ |120 |volt |, |3ø |systems |shall |be |permitted |to |include |___________ |.
I. |one |equipment |grounding |conductor
II. |one |grounded |conductor
III. |three |grounded |conductors
( |a |) |I |only
( |b |) |II |only
( |c |) |I |and |II |only
( |d |) |I, |II, |and |III
I |and |II |only
551.72(B)
The |conductors |supplying |the |supplementary |overcurrent |protective |devices |for |fixed |
industrial |process |heating |equipment |shall |be |considered |__________ |conductors |.
( |a |) |supplementary
( |b |) |tap
,( |c |) |by |- |pass
( |d |) |branch |circuit
branch |circuit
425.22(D)
392.10(E)
In |airports |where |maintenance |and |supervision |conditions |ensure |that |only |qualified |persons |
can |access |, |install |, |or |service |the |cable |, |airfield |lighting |cable |used |in |series |circuits |that |are |
rated |up |to |__________ |volts |and |are |powered |by |constant |current |regulators |shall |be |
permitted |to |be |installed |in |cable |trays |.
( |a |) |1000
( |b |) |2500
( |c |) |3000
( |d |) |5000
5,000 |volts
392.10(E)
424.101(A)
Low |voltage |heating |power |unit |shall |be |an |isolating |type |with |a |rated |output |NOT |exceeding |
__________ |volts |peak |ac.
( |a |) |30
( |b |) |42.4
( |c |) |60
( |d |) |25
42.4V |peak |AC
424.101(A)
210.8(C)
GFCI |protection |shall |be |provided |for |lighting |outlets |NOT |exceeding |_________ |volts |installed |
in |crawl |spaces
,( |a |) |30
( |b |) |50
( |c |) |90
( |d |) |120
120V
210.8(C)
All |audio |equipment |operating |at |greater |than |the |low |- |voltage |contact |limit |and |located |
within |__________ |from |the |inside |walls |of |a |storable |or |portable |immersion |pool |shall |be |
grounded |and |shall |be |protected |by |a |GFCI.
( |a |) |6 | '
( |b |) |8 |'
( |c |) |10 |'
( |d |) |12 |'
6'
680.35(D)
Locations |in |which |easily |ignitable |combustible |fibers |are |stored |or |handled |other |than |in |the |
process |of |manufacturing |are |designated |as |__________ |.
( |a |) |nonhazardous
( |b |) |Class |III |, |Division |2
( |c |) |Class |III |, |Division |1
( |d |) |Class |II |, |Division |2
Class |III |, |Division |2
500.5(D)(2)
A |disconnecting |means |is |required |to |disconnect |the |__________ |from |the |circuit.
( |a |) |motor |and |controller
( |b |) |motor
( |c |) |motor |or |controller
( |d |) |controller
, motor |and |controller
430.101
Circuits |and |equipment |operating |at |less |than |50 |volts |must |use |receptacles |that |are |rated |at |
NOT |less |than |__________ |amps |.
(a |) |15
( |b |) |20
( |c |) |25
( |d |) |none |of |these
15 |amps
720.6
Most |incidents |and |injuries |are |initiated |by |__________ |.
( |a |) |equipment |failures
( |b |) |people
( |c |) |incomplete |procedures
( |d |) |inadequate |regulation |enforcement
people
NFPA |70E
Which |of |the |following |organizations |would |maintain |records |of |tested |electrical |equipment |?
( |a |) |Underwriters |' |Laboratories
( |b |) |National |Fire |Protection |Association
( |c |) |National |Electrical |Contractors |Association
( |d |) |IEEE
UL
General |Knowledge
Fastening |of |unbroken |lengths |of |EMT |conduit |can |be |increased |to |a |distance |of |__________ |
from |the |termination |point |where |the |structural |members |do |NOT |readily |permit |fastening |
within |3 |feet
