©BRAINBARTER 2024/2025 ALL RIGHTS RESERVED.
Army Electrical Explosives Safety (Ammo-
28) Exam With Latest Questions And
Answers. Updated And Verified
Which two publications provide detailed information on lightning protection systems? -
Answer✔DA PAM 385-64
NFPA 780
Which statements about lightning protection are true?Select all that apply. - Answer✔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? - Answer✔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? - Answer✔at least 6 feet
Which LPS uses air terminals and conductors mounted directly to the structure? -
Answer✔Integral
Why does the wooden mast have an air terminal on top and two down conductors running its
entire length? - Answer✔The wooden mast is not electrically conductive
Which of the following is NOT a requirement for air terminals? - Answer✔Air Terminals must be
at least 6 feet tall.
During the inspection, John's team logged a discrepancy for this air terminal. Why? -
Answer✔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? -
Answer✔4
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, ©BRAINBARTER 2024/2025 ALL RIGHTS RESERVED.
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? - Answer✔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? - Answer✔60
feet or less
Which statement about grounding systems is true? - Answer✔The resistance should be 25
ohms or less.
Which of the following statements regarding bonding are true? Select all that apply. -
Answer✔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? - Answer✔When it's within 6
feet of a conductor
Which bonding method is the most permanent and secure? - Answer✔Exothermic weld
Which factors are used to calculate bonding distance?Select all that apply. - Answer✔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? -
Answer✔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. - Answer✔Test
locations
Test item descriptions or listing
Type of test
2|Page
Army Electrical Explosives Safety (Ammo-
28) Exam With Latest Questions And
Answers. Updated And Verified
Which two publications provide detailed information on lightning protection systems? -
Answer✔DA PAM 385-64
NFPA 780
Which statements about lightning protection are true?Select all that apply. - Answer✔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? - Answer✔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? - Answer✔at least 6 feet
Which LPS uses air terminals and conductors mounted directly to the structure? -
Answer✔Integral
Why does the wooden mast have an air terminal on top and two down conductors running its
entire length? - Answer✔The wooden mast is not electrically conductive
Which of the following is NOT a requirement for air terminals? - Answer✔Air Terminals must be
at least 6 feet tall.
During the inspection, John's team logged a discrepancy for this air terminal. Why? -
Answer✔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? -
Answer✔4
1|Page
, ©BRAINBARTER 2024/2025 ALL RIGHTS RESERVED.
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? - Answer✔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? - Answer✔60
feet or less
Which statement about grounding systems is true? - Answer✔The resistance should be 25
ohms or less.
Which of the following statements regarding bonding are true? Select all that apply. -
Answer✔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? - Answer✔When it's within 6
feet of a conductor
Which bonding method is the most permanent and secure? - Answer✔Exothermic weld
Which factors are used to calculate bonding distance?Select all that apply. - Answer✔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? -
Answer✔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. - Answer✔Test
locations
Test item descriptions or listing
Type of test
2|Page
