92F AIT (A2–A6) – Petroleum Supply Specialist Training Study Guide and
Technical Review
What are fire hazards? - ANS ✔✔Smoking, matches, sparks, electrical equipment, poor house
keeping, spontaneous combustions, welding and cutting, automatic nozzles, radar
Less than __ % fuel vapors will not ignite - ANS ✔✔1%
__% to __ % explosive is the proper mixture to ignite - ANS ✔✔1%, 8%
More than __% fuel vapors will not ignite - ANS ✔✔8%
What is static? - ANS ✔✔Electricity generated by friction between two unlike substances.
Grounding - ANS ✔✔Connecting single or bonded units to a grounding rod so that any static
potential will be discharged into the earth
Bonding - ANS ✔✔Electrically connecting units or containers before operations begin in order to
equalize any static potential that might exist and to provide a continuous path for any static
potential that might be generated after operations begin.
What are the types of permanent storage tanks? - ANS ✔✔Concrete, steel-welded
What are the types of storage tanks? - ANS ✔✔Concrete, steel-welded, collapsible
What are the required depths for grounding rods on silt gravel, sand, silt, muck & swamp? - ANS
✔✔3 FT
, Required depths for grounding Rods on clay, gravel, silt clay? - ANS ✔✔4 FT
Required depths for grounding rods on Coarse ground, cohesion less sand, and gravel? - ANS
✔✔6 FT
Commanding headquarters are responsible for? - ANS ✔✔Constructing and operating units that
determine if the repairs are minor or major
Quartermaster units are responsible for? - ANS ✔✔Minor repairs & organizational, limited
higher-echelon maintenance on constructed pipeline system.
What are persons responsible for? - ANS ✔✔Day to day care, perform operator maintenance.
Preventive maintenance checks & service
Reasons to clean tanks? - ANS ✔✔Repairs; suspected fuel contamination; sludge build- up;
removal of tank from service; reactivation of tanks from storage.
What are health hazards? - ANS ✔✔*Presence of fuel sludge
*Presence of fuel vapors
*Presence of tetraethyl lead
*Presence of hydrogen sulfide
*Lack of oxygen.
What are Physical hazards - ANS ✔✔*Physical condition of the tank
*Collapsing of thin roof section
*Accidental pumpkin of fuel ink the tank
*Loose tools & equipment can cause danger from above
*Wet floors
Technical Review
What are fire hazards? - ANS ✔✔Smoking, matches, sparks, electrical equipment, poor house
keeping, spontaneous combustions, welding and cutting, automatic nozzles, radar
Less than __ % fuel vapors will not ignite - ANS ✔✔1%
__% to __ % explosive is the proper mixture to ignite - ANS ✔✔1%, 8%
More than __% fuel vapors will not ignite - ANS ✔✔8%
What is static? - ANS ✔✔Electricity generated by friction between two unlike substances.
Grounding - ANS ✔✔Connecting single or bonded units to a grounding rod so that any static
potential will be discharged into the earth
Bonding - ANS ✔✔Electrically connecting units or containers before operations begin in order to
equalize any static potential that might exist and to provide a continuous path for any static
potential that might be generated after operations begin.
What are the types of permanent storage tanks? - ANS ✔✔Concrete, steel-welded
What are the types of storage tanks? - ANS ✔✔Concrete, steel-welded, collapsible
What are the required depths for grounding rods on silt gravel, sand, silt, muck & swamp? - ANS
✔✔3 FT
, Required depths for grounding Rods on clay, gravel, silt clay? - ANS ✔✔4 FT
Required depths for grounding rods on Coarse ground, cohesion less sand, and gravel? - ANS
✔✔6 FT
Commanding headquarters are responsible for? - ANS ✔✔Constructing and operating units that
determine if the repairs are minor or major
Quartermaster units are responsible for? - ANS ✔✔Minor repairs & organizational, limited
higher-echelon maintenance on constructed pipeline system.
What are persons responsible for? - ANS ✔✔Day to day care, perform operator maintenance.
Preventive maintenance checks & service
Reasons to clean tanks? - ANS ✔✔Repairs; suspected fuel contamination; sludge build- up;
removal of tank from service; reactivation of tanks from storage.
What are health hazards? - ANS ✔✔*Presence of fuel sludge
*Presence of fuel vapors
*Presence of tetraethyl lead
*Presence of hydrogen sulfide
*Lack of oxygen.
What are Physical hazards - ANS ✔✔*Physical condition of the tank
*Collapsing of thin roof section
*Accidental pumpkin of fuel ink the tank
*Loose tools & equipment can cause danger from above
*Wet floors
