U1 UST Installation/Retrofitting EXAM STUDY
GUIDE 2026/2027 COMPLETE QUESTIONS
WITH VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. One of the significant causes of leaks in underground liquid storage systems
is ____________ ________________ - ANSWER ✔ Improper Installation
2. Written Plans are required to - ANSWER ✔ obtain permits, solicit bids, and
provide precise guidance for installers.
3. The plans should - ANSWER ✔ Describe the property, identify the size and
location of the tanks, indicate the liquids to be stored and provide the
location of the dispensers and piping.
4. Storage systems discussed in this recommended practice are usually
regulated by - ANSWER ✔ Federal, state or local agencies.
5. All owners should ensure that the equipment to be installed meets -
ANSWER ✔ applicable regulatory requirements before being installed
6. Installing sensors in dispenser sumps can provide a more reliable warning of
_________ ____________ - ANSWER ✔ A. Sensor leaks
, B. Tank leaks
C. Over-fill leaks
D. Dispenser leaks
Answer D
7. The purpose of a ____________ detection is to provide early warning of the
loss of integrity in any portion of the underground storage system that
routinely contains product. - ANSWER ✔ A. Release
B. Arcane
C. Connive
D. None of the above
Answer A
8. To improve effectiveness of inventory control, manual tank gauging, and
statistical inventory reconciliation, the tank owner should utilize a tank chart
and gauge stick calibrated in _____ inch - ANSWER ✔ A. 1/6th
B. 1/8th
C. 2/3ds
D. 1/7th
Answer B
9. Observation wells located inside 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 ______ft of the ground surface
year-round. - ANSWER ✔ A. 25ft
B. 20ft
C. 22ft
D. 23ft
Answer B
10.When installed, standard drop tubes should allow for at least ____ and less
than ______ inches of clearance from the tank bottom to the highest point of
the tube cut - ANSWER ✔ A. 4,6 in
, B. 2,8in
C. 3,9in
D. None of the above
11.In most states, acceptable leak detection for newly installed______________
___________ is limited to a combination of line leak detection and
interstitial monitoring. - ANSWER ✔ A. Under-ground tank
B. Pressurized piping
C. Above-ground tank
D. Submersible pump
Answer B
12.a bottom hold-down pad is typically constructed of - ANSWER ✔ 8"
reinforced concrete
13.aboveground piping should be Schedule _____ galvanized or painted/coated
black steel pipe - ANSWER ✔ 40
14.all piping components, including, fittings, gasket, o-rings, pipedope, and
piping itself must: - ANSWER ✔ 1. be fully compatible with the products
stores and the underground environment
2. have sufficient strength to withstand the stress produced during
construction.
15.electrical isolation material used on tank straps for steel and composite tanks
should be atleast ____ thick wider than the strap, and should extend______
below the widest part of the tank - ANSWER ✔ 1/8" thick 1 foot below
16.Flex connectors are not required on flexible pipe. - ANSWER ✔ False
, 17.flex connectors installed in dispenser or intermediate sumps should be listed
for _____ use. - ANSWER ✔ Aboveground
18.flex connectors installed in tank-top stumps should be listed for - ANSWER
✔ aboveground or underground
19.groundwater monitoring wells should be constructed with 0.020 inch
openings and permeable backfill to allow water or released product to flow
freely through the well. well should be contructed of - ANSWER ✔ 1.
Slotted PVC
2. Perforated PVC
3. Coated metal pipe
20.Installing Steel Unions Underground is not recommended. If it is
unavoidable use _______
ground joint unions and provide access for service. - ANSWER ✔ 250/300 #
21.Material used to provide electrical isolation between tank strap and a steel
tank should be at
least 1/8" thick, wider than the strap, and extend ______ below the widest
part of the Tank. - ANSWER ✔ 1 Foot
22.Prior to installing a UST, piping or any other UST system equipment: -
ANSWER ✔ 1. Physically inspect all materials for any defects. If defects are
found, notify the owner and
make repairs per manufactures (if possible).
2. Confirm adherence to the plans and specifications
23.Roofing Felt and Expansion joint material are acceptable for Isolating tank
straps from a Steel
GUIDE 2026/2027 COMPLETE QUESTIONS
WITH VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. One of the significant causes of leaks in underground liquid storage systems
is ____________ ________________ - ANSWER ✔ Improper Installation
2. Written Plans are required to - ANSWER ✔ obtain permits, solicit bids, and
provide precise guidance for installers.
3. The plans should - ANSWER ✔ Describe the property, identify the size and
location of the tanks, indicate the liquids to be stored and provide the
location of the dispensers and piping.
4. Storage systems discussed in this recommended practice are usually
regulated by - ANSWER ✔ Federal, state or local agencies.
5. All owners should ensure that the equipment to be installed meets -
ANSWER ✔ applicable regulatory requirements before being installed
6. Installing sensors in dispenser sumps can provide a more reliable warning of
_________ ____________ - ANSWER ✔ A. Sensor leaks
, B. Tank leaks
C. Over-fill leaks
D. Dispenser leaks
Answer D
7. The purpose of a ____________ detection is to provide early warning of the
loss of integrity in any portion of the underground storage system that
routinely contains product. - ANSWER ✔ A. Release
B. Arcane
C. Connive
D. None of the above
Answer A
8. To improve effectiveness of inventory control, manual tank gauging, and
statistical inventory reconciliation, the tank owner should utilize a tank chart
and gauge stick calibrated in _____ inch - ANSWER ✔ A. 1/6th
B. 1/8th
C. 2/3ds
D. 1/7th
Answer B
9. Observation wells located inside 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 ______ft of the ground surface
year-round. - ANSWER ✔ A. 25ft
B. 20ft
C. 22ft
D. 23ft
Answer B
10.When installed, standard drop tubes should allow for at least ____ and less
than ______ inches of clearance from the tank bottom to the highest point of
the tube cut - ANSWER ✔ A. 4,6 in
, B. 2,8in
C. 3,9in
D. None of the above
11.In most states, acceptable leak detection for newly installed______________
___________ is limited to a combination of line leak detection and
interstitial monitoring. - ANSWER ✔ A. Under-ground tank
B. Pressurized piping
C. Above-ground tank
D. Submersible pump
Answer B
12.a bottom hold-down pad is typically constructed of - ANSWER ✔ 8"
reinforced concrete
13.aboveground piping should be Schedule _____ galvanized or painted/coated
black steel pipe - ANSWER ✔ 40
14.all piping components, including, fittings, gasket, o-rings, pipedope, and
piping itself must: - ANSWER ✔ 1. be fully compatible with the products
stores and the underground environment
2. have sufficient strength to withstand the stress produced during
construction.
15.electrical isolation material used on tank straps for steel and composite tanks
should be atleast ____ thick wider than the strap, and should extend______
below the widest part of the tank - ANSWER ✔ 1/8" thick 1 foot below
16.Flex connectors are not required on flexible pipe. - ANSWER ✔ False
, 17.flex connectors installed in dispenser or intermediate sumps should be listed
for _____ use. - ANSWER ✔ Aboveground
18.flex connectors installed in tank-top stumps should be listed for - ANSWER
✔ aboveground or underground
19.groundwater monitoring wells should be constructed with 0.020 inch
openings and permeable backfill to allow water or released product to flow
freely through the well. well should be contructed of - ANSWER ✔ 1.
Slotted PVC
2. Perforated PVC
3. Coated metal pipe
20.Installing Steel Unions Underground is not recommended. If it is
unavoidable use _______
ground joint unions and provide access for service. - ANSWER ✔ 250/300 #
21.Material used to provide electrical isolation between tank strap and a steel
tank should be at
least 1/8" thick, wider than the strap, and extend ______ below the widest
part of the Tank. - ANSWER ✔ 1 Foot
22.Prior to installing a UST, piping or any other UST system equipment: -
ANSWER ✔ 1. Physically inspect all materials for any defects. If defects are
found, notify the owner and
make repairs per manufactures (if possible).
2. Confirm adherence to the plans and specifications
23.Roofing Felt and Expansion joint material are acceptable for Isolating tank
straps from a Steel
