ARMY ELECTRICAL EXPLOSIVES SAFETY COURSE (AMMO 28) QUESTIONS AND CORRECT VERIFIED ANSWERS

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ARMY ELECTRICAL EXPLOSIVES SAFETY COURSE (AMMO 28) QUESTIONS AND CORRECT VERIFIED ANSWERS

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2025/2026

Institution US Army Explosive Safety Familiarization

Course US Army Explosive Safety Familiarization

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ARMY ELECTRICAL EXPLOSIVES SAFETY COURSE (AMMO 28) QUESTIONS AND CORRECT VERIFIED ANSWERS

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ARMY ELECTRICAL EXPLOSIVES
SAFETY COURSE (AMMO 28) QUESTIONS
AND CORRECT VERIFIED ANSWERS
WhichA2fourA2statementsA2areA2characteristicsA2ofA2lightening?A2-A2Ans--
LighteningA2heatsA2theA2airA2toA250,000F.,A2MostA2lighteningA2neverA2reachesA2theA2groun
d.,A2LighteningA2carriesA2aboutA230,000A2ampsA2ofA2current.,A2LighteningA2isA2aboutA21"A2t
hick.

WhichA2ofA2theA2followingA2statementsA2aboutA2lighteningA2isA2false?A2-A2Ans--
AllA2lighteningA2strikesA2theA2ground.

PlaceA2theA2stepsA2ofA2lighteningA2formationA2inA2theA2correctA2order.A2-A2Ans--
1.A2ChangeA2formsA2inA2aA2cloud
2.A2AA2steppedA2leaderA2extendsA2downA2fromA2theA2cloud.
3.A2AnA2upwardA2streamA2extendsA2upA2fromA2theA2ground.
4.A2TheA2steppedA2leaderA2andA2upwardA2streamerA2connectA2andA2currentA2flowsA2fromA2
theA2cloudA2toA2theA2ground.

TheA2goalA2ofA2lighteningA2protectionA2isA2toA2-A2Ans--ProvideA2aA2non-
destructive,A2lowA2resistanceA2pathA2toA2theA2ground.

SelectA2allA2theA2watsA2lighteningA2canA2causeA2damage.A2-A2Ans--
Spalling,A2HeatA2orA2fire,A2ElectromagneticA2radiation,A2Current

WhichA2threeA2regulatoryA2publicationsA2areA2usedA2forA2ArmyA2explosivesA2facilities?A2-
A2Ans--DESRA26055.09,A2DAA2PAMA2385-64,A2NFPAA2780

IfA2aA2paragraphA2inA2NFPAA2780A2isA2labeledA2withA2anA2asterisk,A2whereA2wouldA2youA2l
ookA2toA2findA2additionalA2explanatoryA2information?A2-A2Ans--NFPAA2780,A2AnnexA2A

WhatA2isA2theA2primaryA2principleA2ofA2lighteningA2protection?A2-A2Ans--
ToA2protectA2lifeA2andA2propertyA2byA2providingA2aA2non-
destructive,A2lowA2resistanceA2pathA2toA2theA2ground

PutA2theA2LPSA2componentsA2inA2theA2orderA2inA2whichA2theA2currentA2flowsA2afterA2aA2ligh
teningA2strike.A2-A2Ans--1.A2StrikeA2determinationA2device
2.A2DownA2conductor
3.A2GroundingA2system

WhichA2imageA2showsA2anA2exampleA2ofA2anA2integralA2LPS?A2-A2Ans--
TheA2oneA2onA2theA2building

, WhichA2imageA2showsA2anA2exampleA2ofA2aA2mastA2LPS?A2-A2Ans--
TheA2oneA2thatA2isA2justA2aA2pole

WhichA2imageA2showsA2anA2exampleA2ofA2aA2catenaryA2LPS?A2-A2Ans--
TheA2oneA2thatA2isA2aA2poleA2withA2wires

SelectA2theA2LPSA2system(s)A2thatA2requireA2eachA2feature.A2-A2Ans--
WoodenA2orA2metalA2mastA2-A2MastA2system,A2CatenaryA2System
AirA2terminalsA2mountedA2toA2theA2buildingA2-A2CatenaryA2System,A2IntegralA2system
StrikeA2terminationA2deviceA2onA2mastA2-A2MastA2system,A2catenaryA2system
WireA2connectingA2mastsA2-A2catenaryA2system
GroundingA2systemA2-A2mastA2system,A2catenaryA2system,A2integralA2system

WhichA2LPSA2typeA2isA2usedA2toA2protectA2aA2large,A2openA2area?A2-A2Ans--
CatenaryA2system

WhatA2isA2theA2zoneA2ofA2protection?A2-A2Ans--
TheA2areaA2protectedA2byA2aA2lighteningA2protectionA2systemA2(LPS)

AccordingA2toA2theA2rollingA2sphereA2method,A2theA2buildingA2inA2theA2imageA2isA2withinA2t
heA2zoneA2ofA2protection.A2-A2Ans--True

MatchA2eachA2variableA2toA2whatA2itA2represents.A2-A2Ans--h1A2-A2HeightA2ofA2mast
h2A2-A2HeightA2ofA2protectedA2object
RA2-A2RadiusA2ofA2rollingA2sphere
dA2-A2ProtectedA2distance

UsingA2theA2imageA2below,A2identifyA2theA2valueA2ofA2h1.A2-A2Ans--85A2feet

UsingA2theA2imageA2below,A2identifyA2theA2valueA2ofA2h2.A2-A2Ans--32A2feet

UsingA2theA2imageA2below,A2identifyA2theA2valueA2ofA2R.A2-A2Ans--100A2feet

IdentifyA2h1,A2h2,A2andA2RA2inA2thisA2image.A2-A2Ans--h1A2-A240A2feet
h2A2-A224A2feet
RA2-A2100A2feet

UseA2theA2zoneA2ofA2protectionA2formulaA2toA2findA2theA2distanceA2(d)A2forA2thisA2structure.
A2-A2Ans--15A2feet

IdentifyA2h1,A2h2,A2andA2RA2inA2thisA2image.A2-A2Ans--h1A2-A240A2feet
h2A2-A210A2feet
RA2-A2100A2feet

IsA2theA2trailerA2withinA2theA2building'sA2zoneA2ofA2protection?
A2UseA2theA2zoneA2ofA2protectionA2formulaA2andA2theA2variablesA2youA2identifiedA2inA2theA2

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