ARMY ELECTRICAL EXPLOSIVES SAFETY (AMMO28)
EXAM LATEST 2023-2024 ACTUAL EXAM 120+
QUESTIONS AND CORRECT DETAILED ANSWERS
|ALREADY GRADED A+
At a minimum, how many individual resistance tests must be performed on this
conductive floor? Refer to DA PAM 385-64, Section C-3 as required. - ANSWER--
Ten tests: five electrode-to-electrode and five electrode-to-ground tests
An LPS requires three-point fall-of-potential earth resistance testing every -
ANSWER--Every 24 months
When conducting a 3-point fall-of-potential earth resistance test, what is the
maximum allowable resistance reading? - ANSWER--25 ohms
When conducting a bonding resistance test, what is the maximum allowable
reading? - ANSWER--1 ohm
How many individual bonding resistance tests are required on an integral LPS with
12 air terminals and 2 down conductors? - ANSWER--24
Which storm warning system measures the strength of atmospheric electric fields
and warns of the possibility of lightning strikes? - ANSWER--Pre-strike
Which hazardous classified location division poses the least probability of ignition
or explosion? - ANSWER--Division 2
Which material belongs to hazardous classified location Class II? - ANSWER--coal
dust
, ARMY ELECTRICAL EXPLOSIVES SAFETY (AMMO28)
EXAM LATEST 2023-2024 ACTUAL EXAM 120+
QUESTIONS AND CORRECT DETAILED ANSWERS
|ALREADY GRADED A+
Which material belongs to hazardous classified location Class I? - ANSWER--
acetylene gas
Which HERO classification describes items that may explode or detonate if
exposed to EMR? - ANSWER--HERO UNSAFE
Which of the following is NOT a hazard posed by electromagnetic radiation? -
ANSWER--WRONG ignition of fuel and other combustibles
How many feet radius does the DoD require for an LPS zone of protection? -
ANSWER--100 ft
Which statement regarding lightning protection is false? - ANSWER--lightning
protection system prevents lightning strikes from occurring.
While conducting an LPS inspection, you discover the scenario illustrated in the
image below. Do you write it up as a discrepancy? Why or why not? - ANSWER--
Yes, because the air terminal is not attached to a conductor.
How many down conductors are required for a mast LPS? - ANSWER--WRONG 4
WRONG 3
Which material is preferred for ground conductors? - ANSWER--Copper
, ARMY ELECTRICAL EXPLOSIVES SAFETY (AMMO28)
EXAM LATEST 2023-2024 ACTUAL EXAM 120+
QUESTIONS AND CORRECT DETAILED ANSWERS
|ALREADY GRADED A+
What does n represent in the Basic Bonding Formula? - ANSWER--Number of
down conductors
What does Km represent in the Basic Bonding Formula? - ANSWER--WRONG
Height of the proposed bond
During an LPS inspection you notice a grounded metal pipe 3 feet from a
conductor. Should you write it up as a possible discrepancy? - ANSWER--Yes.
Grounded metal objects within 6 feet of a conductor should be considered for
bonding
What does D represent in the Basic Bonding Formula? - ANSWER--Bonding
distance
Which bonding condition applies to isolated metal objects surrounded by non-
conductive material (such as a metal door frame in a concrete wall)? - ANSWER--
WRONG Condition 2
Calculate the BBF to determine if bonding is required for the scenario below. Use
a calculator, the BBF equation aid, and the bonding job aid as required.
• The metal vent is 15 feet high.
• There are 2 down conductors at the proper spacing.
• The vent is 12 inches (1 foot) from a conductor through air. - ANSWER--Bonding
distance for the metal roof vent is 1 foot 8 inches. Bonding is required.
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