Army Electrical Explosives Safety (Ammo-
28)/AMMUNITION AND EXPLOSIVES
STORAGE SAFETY (CERT) (AMMO 112)
Exam UPDATED ACTUAL QUESTIONS
AND CORRECT 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.
28)/AMMUNITION AND EXPLOSIVES
STORAGE SAFETY (CERT) (AMMO 112)
Exam UPDATED ACTUAL QUESTIONS
AND CORRECT 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.
