U1 UST INSTALLATION RETROFITTING 2025/2026
QUESTIONS WITH ANSWERS GRADED A+
✔✔observation wells locates I the tank excavation and monitoring wells installed in
native soil outside the tank excavation. may be used for leak detection only if? - ✔✔the
water table is within 20' of the ground surface all times of the year.
✔✔construct wells of factory slotted PVC or coated metallic pipe with 0.020-inch
openings and allow water or released product to flow freely into the well. -
✔✔observation well must be 1 t0 2' below the bottom of the tank. monitoring well must
be 5' below water table to a maximum of 5'.
✔✔provide atleast 6" of clearance between piping and electrical conduits. seperate the
piping by atleast twice the size of the piping diameter. provide atleast 6" between piping
g and the excavation walls. - ✔✔
✔✔schedule 40 factory wrapped coated steel pipe is the minimum standard for metallic
product piping. - ✔✔if u ions are installed under ground they should be 250/300 ground
joint onions and provide access to service.
✔✔install fill pipe so the top of fill ca pl will be? - ✔✔4 to 6" below the manhole lid.
✔✔air test new single wall or double wall piping at? - ✔✔50 psig
✔✔It test primary coaxle piping at? - ✔✔50 psig for 1 hour.
✔✔for fiberglass secondary piping initial testing, test at? - ✔✔10 psig, if flexible
connectors are used test at 5 psig.
✔✔dialetric coatings isolate the external surfaces of thank and piping from the
environment and reduce current demand on the catholic protection. coatings may be? -
✔✔coal tar foxes, enamels, fiberglass reinforced plastic or urethane in liquid form, tape
or extrusions.
✔✔when installing anodes remove the waterproof packaging and inspect for shipping
damage, test electrical continuity and attach lead wire without damaging packaging
material. - ✔✔
✔✔connect the rectifier negative terminal to the structure and positive terminal to the
anodes. - ✔✔Install on a dedicated electrical circuit.
✔✔install direct. burial wiring for cathotic protection atleast 24" deep - ✔✔
QUESTIONS WITH ANSWERS GRADED A+
✔✔observation wells locates I the tank excavation and monitoring wells installed in
native soil outside the tank excavation. may be used for leak detection only if? - ✔✔the
water table is within 20' of the ground surface all times of the year.
✔✔construct wells of factory slotted PVC or coated metallic pipe with 0.020-inch
openings and allow water or released product to flow freely into the well. -
✔✔observation well must be 1 t0 2' below the bottom of the tank. monitoring well must
be 5' below water table to a maximum of 5'.
✔✔provide atleast 6" of clearance between piping and electrical conduits. seperate the
piping by atleast twice the size of the piping diameter. provide atleast 6" between piping
g and the excavation walls. - ✔✔
✔✔schedule 40 factory wrapped coated steel pipe is the minimum standard for metallic
product piping. - ✔✔if u ions are installed under ground they should be 250/300 ground
joint onions and provide access to service.
✔✔install fill pipe so the top of fill ca pl will be? - ✔✔4 to 6" below the manhole lid.
✔✔air test new single wall or double wall piping at? - ✔✔50 psig
✔✔It test primary coaxle piping at? - ✔✔50 psig for 1 hour.
✔✔for fiberglass secondary piping initial testing, test at? - ✔✔10 psig, if flexible
connectors are used test at 5 psig.
✔✔dialetric coatings isolate the external surfaces of thank and piping from the
environment and reduce current demand on the catholic protection. coatings may be? -
✔✔coal tar foxes, enamels, fiberglass reinforced plastic or urethane in liquid form, tape
or extrusions.
✔✔when installing anodes remove the waterproof packaging and inspect for shipping
damage, test electrical continuity and attach lead wire without damaging packaging
material. - ✔✔
✔✔connect the rectifier negative terminal to the structure and positive terminal to the
anodes. - ✔✔Install on a dedicated electrical circuit.
✔✔install direct. burial wiring for cathotic protection atleast 24" deep - ✔✔
