Nm Es3j Questions With Correct
Answers
NFPA b72 b- bcorrect banswers✔✔What bis bthe bNFPA bcode bthat brefers bto bhousehold
bfirefighting bequipment?
22 b(NEC b725.179 bE) b- bcorrect banswers✔✔Type bPLTC bnonmetallic bsheathed bshall
bbe ba bminimum bsize b___ bgauge bfor bclass b3 bcircuits band bhave ban binsulation brating
bof batleast b300 bV
Grounding bConnection b- bcorrect banswers✔✔What bis bthe bfunction bof ba bgreen bwire
bin ba bmanufactured bhome?
2 bFeet b- bcorrect banswers✔✔What bis bthe bminimum brequired bclearance bbetween ba
breceiving bantenna band b250 bvolt bline bnot binsulated?
20 b- bcorrect banswers✔✔What bis bthe bmaximum bnumber bof bsupervisory bswitches
bpermitted bto bbe bconnected bto ba bactuate ba bsingle btransmitter?
18 b(NEC b725.179 bH) b- bcorrect banswers✔✔According bto bNEC bclass b3 bcircuits bare
ballowed ba bminimum bwire bsize bof bwhat bgauge?
8 bFeet b
NEC b250.5.2.5 b- bcorrect banswers✔✔What bis bthe bminimum blength bof ba bgrounding
brod bin ban bapplication bof bless bthan b50 bvolts?
Wooden bplugs b- bcorrect banswers✔✔According bto bthe bNEC belectrical bequipment
bmay bnot bbe bmounted bto bconcrete, bcinder bblock, bor bbrick bwalls bwith bone bof
bthese___.
300
(NEC b800.179) b- bcorrect banswers✔✔Communication bcables bshall bhave ba bvoltage
brating bof bnot bless bthan bhow bmany bvolts?
Connected b
, (NEC b550.16) b- bcorrect banswers✔✔In ba bmanufactured bhome bthe bgrounding bbus
bshall bbe b___ bthrough bthe bgreen bcolor binsulated bconductor bin bthe bsupply bcord bor
bthe bfeeder bwiring bto bthe bservice bground bin bthe bservice bequipment blocated
badjacent bto bthe bmobile bhome.
2b
(NFPA b72 b18.5.2.1) b- bcorrect banswers✔✔what bis bthe bmaximum bblink brate bon ba
bstrobe blight bper bsecond?
10 bfoot bgas bpipe
(NEC b250.5.2 bA) b- bcorrect banswers✔✔All bof bthe bfollowing bis bacceptable bas ba
bground bexcept?
1 b1/4 binches b
(NEC b300.4 bA b1) b- bcorrect banswers✔✔What bis bthe bminimum bclearance bto bthe
bedge bof ba bwood bstud bfor ba bwire bhole?
2 bFeet b
(NEC b810.13) b- bcorrect banswers✔✔The bminimum bclearance bfor ban bantenna bto
bother bconductors bis?
2 b- bcorrect banswers✔✔A bbasic balarm bsystem bwill bhave b__ bpower bsources
60 bVolts b
(NEC b820.15) b- bcorrect banswers✔✔What bis bthe bmaximum bvoltage bthat bcoax bcable
bcan bcarry?
50 bFeet b(NFPA b72 b29.7.3.1) b- bcorrect banswers✔✔Heat bdetectors bused bwithin ba
bfamily bunit bmust bbe blisted bas bor bapproved bfor bnot bless bthan b___ bspacing?
3 bhours b- bcorrect banswers✔✔The bNEC bclassifies bContinuous bLoad bas bequipment
brunning bat ba bmaximum bload bof b__ b____?
Class bll bDivision b1
(NEC b500.5 bC1) b- bcorrect banswers✔✔Determine bthe bclass band bdivision bfor bwhich
blocation bin bwhich bsufficient bquantities bof bcombustible bdust bare bnormally bpresent bin
bthe bair bto bproduce bexplosive bmixtures.
On bthe bcenterline bof ba bdoorway b- bcorrect banswers✔✔Given: ba bsmoke bdetection
bsystem bis bbeing binstalled bto bautomatically bclose ba bdouble bdoorway bin bresponse
bto bsmoke bblowing bin beither bdirection, bthe bceiling bis bsmooth. bWhere bmust bthe
bsmoke bdetector bbe binstalled?
Bottom bof bthe bbeam b- bcorrect banswers✔✔On ba bbeam bceiling bwhere bthe bbeams
bare bless bthan b12 binches bin bdepth band bspacing bis bless bthan b96 binches bwhere
bshould bthe bsmoke bdetectors bbe bmounted?
Answers
NFPA b72 b- bcorrect banswers✔✔What bis bthe bNFPA bcode bthat brefers bto bhousehold
bfirefighting bequipment?
22 b(NEC b725.179 bE) b- bcorrect banswers✔✔Type bPLTC bnonmetallic bsheathed bshall
bbe ba bminimum bsize b___ bgauge bfor bclass b3 bcircuits band bhave ban binsulation brating
bof batleast b300 bV
Grounding bConnection b- bcorrect banswers✔✔What bis bthe bfunction bof ba bgreen bwire
bin ba bmanufactured bhome?
2 bFeet b- bcorrect banswers✔✔What bis bthe bminimum brequired bclearance bbetween ba
breceiving bantenna band b250 bvolt bline bnot binsulated?
20 b- bcorrect banswers✔✔What bis bthe bmaximum bnumber bof bsupervisory bswitches
bpermitted bto bbe bconnected bto ba bactuate ba bsingle btransmitter?
18 b(NEC b725.179 bH) b- bcorrect banswers✔✔According bto bNEC bclass b3 bcircuits bare
ballowed ba bminimum bwire bsize bof bwhat bgauge?
8 bFeet b
NEC b250.5.2.5 b- bcorrect banswers✔✔What bis bthe bminimum blength bof ba bgrounding
brod bin ban bapplication bof bless bthan b50 bvolts?
Wooden bplugs b- bcorrect banswers✔✔According bto bthe bNEC belectrical bequipment
bmay bnot bbe bmounted bto bconcrete, bcinder bblock, bor bbrick bwalls bwith bone bof
bthese___.
300
(NEC b800.179) b- bcorrect banswers✔✔Communication bcables bshall bhave ba bvoltage
brating bof bnot bless bthan bhow bmany bvolts?
Connected b
, (NEC b550.16) b- bcorrect banswers✔✔In ba bmanufactured bhome bthe bgrounding bbus
bshall bbe b___ bthrough bthe bgreen bcolor binsulated bconductor bin bthe bsupply bcord bor
bthe bfeeder bwiring bto bthe bservice bground bin bthe bservice bequipment blocated
badjacent bto bthe bmobile bhome.
2b
(NFPA b72 b18.5.2.1) b- bcorrect banswers✔✔what bis bthe bmaximum bblink brate bon ba
bstrobe blight bper bsecond?
10 bfoot bgas bpipe
(NEC b250.5.2 bA) b- bcorrect banswers✔✔All bof bthe bfollowing bis bacceptable bas ba
bground bexcept?
1 b1/4 binches b
(NEC b300.4 bA b1) b- bcorrect banswers✔✔What bis bthe bminimum bclearance bto bthe
bedge bof ba bwood bstud bfor ba bwire bhole?
2 bFeet b
(NEC b810.13) b- bcorrect banswers✔✔The bminimum bclearance bfor ban bantenna bto
bother bconductors bis?
2 b- bcorrect banswers✔✔A bbasic balarm bsystem bwill bhave b__ bpower bsources
60 bVolts b
(NEC b820.15) b- bcorrect banswers✔✔What bis bthe bmaximum bvoltage bthat bcoax bcable
bcan bcarry?
50 bFeet b(NFPA b72 b29.7.3.1) b- bcorrect banswers✔✔Heat bdetectors bused bwithin ba
bfamily bunit bmust bbe blisted bas bor bapproved bfor bnot bless bthan b___ bspacing?
3 bhours b- bcorrect banswers✔✔The bNEC bclassifies bContinuous bLoad bas bequipment
brunning bat ba bmaximum bload bof b__ b____?
Class bll bDivision b1
(NEC b500.5 bC1) b- bcorrect banswers✔✔Determine bthe bclass band bdivision bfor bwhich
blocation bin bwhich bsufficient bquantities bof bcombustible bdust bare bnormally bpresent bin
bthe bair bto bproduce bexplosive bmixtures.
On bthe bcenterline bof ba bdoorway b- bcorrect banswers✔✔Given: ba bsmoke bdetection
bsystem bis bbeing binstalled bto bautomatically bclose ba bdouble bdoorway bin bresponse
bto bsmoke bblowing bin beither bdirection, bthe bceiling bis bsmooth. bWhere bmust bthe
bsmoke bdetector bbe binstalled?
Bottom bof bthe bbeam b- bcorrect banswers✔✔On ba bbeam bceiling bwhere bthe bbeams
bare bless bthan b12 binches bin bdepth band bspacing bis bless bthan b96 binches bwhere
bshould bthe bsmoke bdetectors bbe bmounted?
