Army Electrical Explosive Safety Module 1-
4 Exam UPDATED QUESTIONS AND
CORRECT ANSWERS
Which four statements are characteristics of lightning? - CORRECT
ANSWER +Lightning heats the air to 50,000 degrees F
+Most lightning never reaches the ground
+lightning carries about 30,000 amps current
+lightning is about 1" thick
which of the following statements about lightning is false? - CORRECT ANSWER All
lightning strikes the ground
place the steps of lightning formation in the correct order. - CORRECT ANSWER 1.
charge forms in a cloud
2. a stepped leader extends down from the cloud
3. and upward streamer extends from the ground
4. the stepped leader and upward streamer connect and current flows from the cloud to the
ground
The goal of lightning protection is to - CORRECT ANSWER provide a non-
destructive, low resistance path to ground
select all the ways lightning can cause damage - CORRECT ANSWER spalling
heat or fire
electromagnetic radiation
current
(all are correct)
, which three regulatory publications are used for Army explosives facilities? - CORRECT
ANSWER DESR 6055.09
DA PAM 385-64
NFPA 780
If a paragraph in NFPA 780 is labeled with an asterisk, where would you look to find
additional explanatory information? - CORRECT ANSWER NFPA 780 annex A
What is the primary principle of lightning protection? - CORRECT ANSWER to
protect life and property by providing a non-destructive, low resistance path to ground
put the LPS components in the order in which the current flows after a lightning strike -
CORRECT ANSWER +strike termination device
+down conductor
+grounding system
which image shows an example of an integral LPS? - CORRECT ANSWER The
middle one with the building
which image shows an example of a mast LPS? - CORRECT ANSWER The first one
the lone ranger
which image shows and example of a catenary LPS? - CORRECT ANSWER the last
one The guy with all his friends
select the LPS system(s) that require each feature - CORRECT ANSWER +Mast
system : wooden or metal mast, strike termination device on mast, grounding system
+Catenary system: wooden or metal mast, strike termination device on mast, wire connecting
masts, grounding system
4 Exam UPDATED QUESTIONS AND
CORRECT ANSWERS
Which four statements are characteristics of lightning? - CORRECT
ANSWER +Lightning heats the air to 50,000 degrees F
+Most lightning never reaches the ground
+lightning carries about 30,000 amps current
+lightning is about 1" thick
which of the following statements about lightning is false? - CORRECT ANSWER All
lightning strikes the ground
place the steps of lightning formation in the correct order. - CORRECT ANSWER 1.
charge forms in a cloud
2. a stepped leader extends down from the cloud
3. and upward streamer extends from the ground
4. the stepped leader and upward streamer connect and current flows from the cloud to the
ground
The goal of lightning protection is to - CORRECT ANSWER provide a non-
destructive, low resistance path to ground
select all the ways lightning can cause damage - CORRECT ANSWER spalling
heat or fire
electromagnetic radiation
current
(all are correct)
, which three regulatory publications are used for Army explosives facilities? - CORRECT
ANSWER DESR 6055.09
DA PAM 385-64
NFPA 780
If a paragraph in NFPA 780 is labeled with an asterisk, where would you look to find
additional explanatory information? - CORRECT ANSWER NFPA 780 annex A
What is the primary principle of lightning protection? - CORRECT ANSWER to
protect life and property by providing a non-destructive, low resistance path to ground
put the LPS components in the order in which the current flows after a lightning strike -
CORRECT ANSWER +strike termination device
+down conductor
+grounding system
which image shows an example of an integral LPS? - CORRECT ANSWER The
middle one with the building
which image shows an example of a mast LPS? - CORRECT ANSWER The first one
the lone ranger
which image shows and example of a catenary LPS? - CORRECT ANSWER the last
one The guy with all his friends
select the LPS system(s) that require each feature - CORRECT ANSWER +Mast
system : wooden or metal mast, strike termination device on mast, grounding system
+Catenary system: wooden or metal mast, strike termination device on mast, wire connecting
masts, grounding system
