Ammo-28-DL: Electrical Explosives Safety |\ |\ |\
for Army Facilities, Ammo-47-DL:
|\ |\ |\ |\ |\
Lightning Protection for Air Force |\ |\ |\ |\ |\
Facilities – QUESTIONS WITH ANSWERS |\ |\ |\ |\
Which statement regarding lightning protection is false? -
|\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔lightning protection system prevents
|\ |\ |\ |\ |\ |\
lightning strikes from occurring.
|\ |\ |\
How many down conductors are required for a mast LPS? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔2 |\ |\
Which material is preferred for ground conductors? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔Copper |\
What does n represent in the Basic Bonding Formula? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔Number of down conductors |\ |\ |\ |\
What does Km represent in the Basic Bonding Formula? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔flashover medium |\ |\ |\
During an LPS inspection you notice a grounded metal pipe 3 feet
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
from a conductor. Should you write it up as a possible
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
discrepancy? - CORRECT ANSWERS ✔✔Yes. Grounded metal
|\ |\ |\ |\ |\ |\ |\
objects within 6 feet of a conductor should be considered for
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
bonding
, What does D represent in the Basic Bonding Formula? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔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)? - CORRECT ANSWERS ✔✔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. -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Bonding distance for the metal roof vent |\ |\ |\ |\ |\ |\ |\ |\ |\
is 1 foot 8 inches. Bonding is required.
|\ |\ |\ |\ |\ |\ |\
LPS test results must be kept on file for - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔6 inspection cycles |\ |\
An LPS visual inspection is required every - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔12 months |\
Conductive floors in explosives facilities must be tested every - |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔WRONG 6 months |\ |\ |\ |\
At a minimum, how many individual resistance tests must be
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
performed on this conductive floor? Refer to DA PAM 385-64, |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
for Army Facilities, Ammo-47-DL:
|\ |\ |\ |\ |\
Lightning Protection for Air Force |\ |\ |\ |\ |\
Facilities – QUESTIONS WITH ANSWERS |\ |\ |\ |\
Which statement regarding lightning protection is false? -
|\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔lightning protection system prevents
|\ |\ |\ |\ |\ |\
lightning strikes from occurring.
|\ |\ |\
How many down conductors are required for a mast LPS? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔2 |\ |\
Which material is preferred for ground conductors? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔Copper |\
What does n represent in the Basic Bonding Formula? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔Number of down conductors |\ |\ |\ |\
What does Km represent in the Basic Bonding Formula? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔flashover medium |\ |\ |\
During an LPS inspection you notice a grounded metal pipe 3 feet
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
from a conductor. Should you write it up as a possible
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
discrepancy? - CORRECT ANSWERS ✔✔Yes. Grounded metal
|\ |\ |\ |\ |\ |\ |\
objects within 6 feet of a conductor should be considered for
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
bonding
, What does D represent in the Basic Bonding Formula? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔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)? - CORRECT ANSWERS ✔✔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. -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Bonding distance for the metal roof vent |\ |\ |\ |\ |\ |\ |\ |\ |\
is 1 foot 8 inches. Bonding is required.
|\ |\ |\ |\ |\ |\ |\
LPS test results must be kept on file for - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔6 inspection cycles |\ |\
An LPS visual inspection is required every - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔12 months |\
Conductive floors in explosives facilities must be tested every - |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔WRONG 6 months |\ |\ |\ |\
At a minimum, how many individual resistance tests must be
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
performed on this conductive floor? Refer to DA PAM 385-64, |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
