KENTUCKY UST EVALUATION EXAM 2025/2026
QUESTIONS WITH ANSWERS MARKED A+
✔✔vent piping connected to underground tanks... - ✔✔must have a discharge point
upward which is not less than 12 feet above adjacent ground or two feet above the roof
at the point of attachment if attached to a building
✔✔couplings and fittings used in the piping of a steel underground petroleum product
storage system should be at least... - ✔✔150 pound malleable iron
✔✔between all underground lines and the excavation sides top and floor there should
be - ✔✔a minimum of 6 inches of well compacted approved backfill material
✔✔underground product lines and Vapor return lines if required for petroleum storage
systems should - ✔✔have a uniform slope of not less then 1/8 inch per foot toward the
tank
✔✔Flex joints should be installed on metallic underground petroleum system piping... -
✔✔a point where the piping connects with the underground tanks and where it ends at
pump Islands and vent risers
✔✔suction and fill lines should be installed - ✔✔at least 4 inches from the tank bottom
✔✔and air pressure tightness test conducted on a newly installed product piping system
before the system is covered or placed in use should? - ✔✔be conducted by
pressurizing the piping system at 50 PSIG for a period of one hour soaping all joints and
inspecting for bubbles
✔✔to minimize possible problems resulting from cracked fittings or sand holes and
fittings as well as corrosion of fittings it is recommended that? - ✔✔all metal fittings
used in piping systems be of extra-heavy quality
✔✔all the new piping should be tested with air pressure if for some reason typing has
been backfilled or has contained product prior to testing then a hydrostatic test should
be conducted. the proper pressure for a hydrostatic test of piping is? - ✔✔110% of
operating pressure but not less than 50 PSIG
✔✔before being covered new piping except for the fill pipe should be subjected to an air
test for a period of no less than - ✔✔1 hour
✔✔when preparing a new piping system for an air test you should first isolate the
product lines from? - ✔✔both tanks and dispensers
, ✔✔it is recommended that the installer provide a convenient means of venting Vapors
trapped and man weighs or at the end of sloped tanks for what purpose? - ✔✔to
facilitate tank tightness test at a later date
✔✔according to NFPA 30A dispensers and stalled in conjunction with remote pumping
systems should have a listed emergency shut-off valve installed with a? - ✔✔rigid
mount to the concrete Island
✔✔according to NFPA 30A if a vapor return pipe is located inside the dispenser housing
it must be equipped with a? - ✔✔Shear section or flexible connector
✔✔metallic tanks and piping in an underground storage system protected by a galvanic
cathodic protection system should? - ✔✔be electronically isolated from other
unprotected steel structures
✔✔when an impressed current cathodic protection system is used to protect an entire
underground tank system including tanks piping and Associated equipment what is
unnecessary? - ✔✔electrical isolation of storage system components is unnecessary
and in fact undesirable
✔✔prior to backfilling sacrificial anodes should? - ✔✔have any waterproof packaging
materials removed
✔✔when you are installing cathodically protected underground systems you should
make sure that anode lead wires and monitoring wires are? - ✔✔back filled with care
and left slack to provide flexibility
✔✔when sacrificial anodes are installed they should be? - ✔✔back filled with native soil
soaked with three to five gallons of water
✔✔connections between anode lead wires and structures that are to be thought of you
protected should be - ✔✔thermite welded or made by means of pressure type
grounding clamps
✔✔in the absence of specific plan installation of anodes used for the cathodic protection
of underground piping systems should be characterized by one of the following
Arrangements - ✔✔at least two magnesium anodes should be positioned vertically 5
feet from the center of the pipe trench and below the level of the piping
✔✔cathodic protected piping must be electronically continuous. unconnected pipe in the
system should be bonded with? - ✔✔number 12 TW or THHN stranded or solid wire
QUESTIONS WITH ANSWERS MARKED A+
✔✔vent piping connected to underground tanks... - ✔✔must have a discharge point
upward which is not less than 12 feet above adjacent ground or two feet above the roof
at the point of attachment if attached to a building
✔✔couplings and fittings used in the piping of a steel underground petroleum product
storage system should be at least... - ✔✔150 pound malleable iron
✔✔between all underground lines and the excavation sides top and floor there should
be - ✔✔a minimum of 6 inches of well compacted approved backfill material
✔✔underground product lines and Vapor return lines if required for petroleum storage
systems should - ✔✔have a uniform slope of not less then 1/8 inch per foot toward the
tank
✔✔Flex joints should be installed on metallic underground petroleum system piping... -
✔✔a point where the piping connects with the underground tanks and where it ends at
pump Islands and vent risers
✔✔suction and fill lines should be installed - ✔✔at least 4 inches from the tank bottom
✔✔and air pressure tightness test conducted on a newly installed product piping system
before the system is covered or placed in use should? - ✔✔be conducted by
pressurizing the piping system at 50 PSIG for a period of one hour soaping all joints and
inspecting for bubbles
✔✔to minimize possible problems resulting from cracked fittings or sand holes and
fittings as well as corrosion of fittings it is recommended that? - ✔✔all metal fittings
used in piping systems be of extra-heavy quality
✔✔all the new piping should be tested with air pressure if for some reason typing has
been backfilled or has contained product prior to testing then a hydrostatic test should
be conducted. the proper pressure for a hydrostatic test of piping is? - ✔✔110% of
operating pressure but not less than 50 PSIG
✔✔before being covered new piping except for the fill pipe should be subjected to an air
test for a period of no less than - ✔✔1 hour
✔✔when preparing a new piping system for an air test you should first isolate the
product lines from? - ✔✔both tanks and dispensers
, ✔✔it is recommended that the installer provide a convenient means of venting Vapors
trapped and man weighs or at the end of sloped tanks for what purpose? - ✔✔to
facilitate tank tightness test at a later date
✔✔according to NFPA 30A dispensers and stalled in conjunction with remote pumping
systems should have a listed emergency shut-off valve installed with a? - ✔✔rigid
mount to the concrete Island
✔✔according to NFPA 30A if a vapor return pipe is located inside the dispenser housing
it must be equipped with a? - ✔✔Shear section or flexible connector
✔✔metallic tanks and piping in an underground storage system protected by a galvanic
cathodic protection system should? - ✔✔be electronically isolated from other
unprotected steel structures
✔✔when an impressed current cathodic protection system is used to protect an entire
underground tank system including tanks piping and Associated equipment what is
unnecessary? - ✔✔electrical isolation of storage system components is unnecessary
and in fact undesirable
✔✔prior to backfilling sacrificial anodes should? - ✔✔have any waterproof packaging
materials removed
✔✔when you are installing cathodically protected underground systems you should
make sure that anode lead wires and monitoring wires are? - ✔✔back filled with care
and left slack to provide flexibility
✔✔when sacrificial anodes are installed they should be? - ✔✔back filled with native soil
soaked with three to five gallons of water
✔✔connections between anode lead wires and structures that are to be thought of you
protected should be - ✔✔thermite welded or made by means of pressure type
grounding clamps
✔✔in the absence of specific plan installation of anodes used for the cathodic protection
of underground piping systems should be characterized by one of the following
Arrangements - ✔✔at least two magnesium anodes should be positioned vertically 5
feet from the center of the pipe trench and below the level of the piping
✔✔cathodic protected piping must be electronically continuous. unconnected pipe in the
system should be bonded with? - ✔✔number 12 TW or THHN stranded or solid wire
