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.Army Electrical Explosives Safety (Ammo-28) Exam Questions & Answers.
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Army Electrical Explosives Safety (Ammo-28) Exam Questions & Answers.Army Electrical Explosives Safety (Ammo-28) Exam Questions & Answers.Army Electrical Explosives Safety (Ammo-28) Exam Questions & Answers.Army Electrical Explosives Safety (Ammo-28) Exam Questions & Answers.Army Electrical Explosi...

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  • September 3, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • army electrical explosives safety ammo 28 exam q

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  • US Army Explosives Safety Familiarization
  • US Army Explosives Safety Familiarization

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Army Electrical Explosives Safety (Ammo-28) Exam
Questions & Answers




Which !two !publications !provide !detailed !information !on !lightning !protection !systems? !- !correct !
Answers !✔✔ !-DA !PAM !385-64

NFPA !780

Which !statements !about !lightning !protection !are !true?Select !all !that !apply. !- !correct !Answers !
✔✔ !-Lightning !can !detonate !munitions !and !explosives.



Lightning !seeks !the !path !of !least !resistance !to !ground.



Lightning !cannot !be !stopped !or !prevented.

Which !statement !is !true !about !a !mast !LPS? !- !correct !Answers !✔✔ !-Each !mast !must !have !two !
paths !to !ground.

A !30-foot !tall !building !is !protected !by !a !catenary !system. !How !far !from !the !building !should !the !
masts !be !placed? !- !correct !Answers !✔✔ !-at !least !6 !feet

Which !LPS !uses !air !terminals !and !conductors !mounted !directly !to !the !structure? !- !correct !
Answers !✔✔ !-Integral

Why !does !the !wooden !mast !have !an !air !terminal !on !top !and !two !down !conductors !running !its !
entire !length? !- !correct !Answers !✔✔ !-The !wooden !mast !is !not !electrically !conductive

Which !of !the !following !is !NOT !a !requirement !for !air !terminals? !- !correct !Answers !✔✔ !-Air !
Terminals !must !be !at !least !6 !feet !tall.

During !the !inspection, !John's !team !logged !a !discrepancy !for !this !air !terminal. !Why? !- !correct !
Answers !✔✔ !-The !air !terminal !is !not !attached !to !a !conductor.

How !many !down !conductors !are !required !for !a !building !with !a !perimeter !length !of !325 !feet? !- !
correct !Answers !✔✔ !-4

, While !conducting !an !LPS !inspection, !you !see !mast !down !conductors !routed !as !shown !in !the !
image !below. !Do !you !write !it !up !as !a !discrepancy? !Why !or !why !not? !- !correct !Answers !✔✔ !-Yes, !
because !mast !down !conductors !should !be !180 !degrees !apart.

A !steel !beam, !connected !to !the !main !LPS !at !its !upper !and !lower !extremities, !is !used !as !a !down !
conductor. !At !what !intervals !should !it !be !connected !to !the !grounding !system? !- !correct !Answers !
✔✔ !-60 !feet !or !less

Which !statement !about !grounding !systems !is !true? !- !correct !Answers !✔✔ !-The !resistance !should !
be !25 !ohms !or !less.

Which !of !the !following !statements !regarding !bonding !are !true? !Select !all !that !apply. !- !correct !
Answers !✔✔ !-Bonding !reduces !the !threat !of !sideflash !by !providing !a !low !impedance !path !to !
ground.



Bonding !is !a !way !of !connecting !LPS !conductors !to !grounded !metal !objects.

When !should !a !grounded !metal !object !be !considered !for !bonding? !- !correct !Answers !✔✔ !-When !
it's !within !6 !feet !of !a !conductor

Which !bonding !method !is !the !most !permanent !and !secure? !- !correct !Answers !✔✔ !-Exothermic !
weld

Which !factors !are !used !to !calculate !bonding !distance?Select !all !that !apply. !- !correct !Answers !✔✔ !-
Height !of !proposed !bond



Flashover !medium



Number !of !down !conductors

While !conducting !the !inspection, !John's !team !noticed !a !new !metal !light !pole !installed !3 !feet !from !
the !down !conductor !at !the !corner !of !this !building. !They !logged !a !discrepancy. !Why? !- !correct !
Answers !✔✔ !-Because !grounded !metal !objects !within !6 !feet !of !LPS !conductors !should !be !bonded !
to !it

Which !types !of !information !does !an !LPS !record !provide? !Select !all !that !apply. !- !correct !Answers !
✔✔ !-Test !locations



Test !item !descriptions !or !listing

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