U1 UST Installation/Retrofitting
Questions And Answers 2025
1. One of the significant causes of leaks in underground liquid storage systems is
____________ ________________ - Correct Answer- Improper Installation
2. Written Plans are required to - Correct Answer- obtain permits, solicit bids, and
provide precise guidance for installers.
3. The plans should - Correct 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 -
Correct Answer- Federal, state or local agencies.
5. All owners should ensure that the equipment to be installed meets - Correct Answer-
applicable regulatory requirements before being installed
6. Consult the local authorities who have jurisdiction in the area before storage-system
plans are - Correct Answer- finalized or construction is initiated.
7. All owners should ensure that the equipment to be installed meets all applicable
regulatory requirements before - Correct Answer- Being installed.
8. To avoid damage tanks must not be - Correct Answer- dropped, dragged, or handled
with sharp objects.
9. Tanks must not be dropped, dragged, or handled with sharp objects to avoid -
Correct Answer- Damage to the tank
10. The only time tanks really should be moved is when - Correct Answer- for
inspections and testing.
11. If a tanks is damaged at all throughout the moving process it must be - Correct
Answer- Repaired in accordance with the manufacture's instructions.
12. The proper way to move a tank is by lifting it, using the - Correct Answer- Lift lugs
that are installed by the manufacturer.
13. Tanks should be carefully lifted and lowered using - Correct Answer- Cables or
chains of adequate length.
,14. When two lifting lugs are being used, the angle between the lifting cable and vertical
should be no more than - Correct Answer- 30 degrees.
15. Stockpile piping materials and equipment in a _____________ _________ on the
job site - Correct Answer- Secure area
16. Confirm adherence to specifications by reporting to the owner about any - Correct
Answer- detected damage that could result in leakage or premature corrosion.
17. Pressure test single-walled tanks with _____ to _______ psig air pressure, soaping
all surfaces, seams and fittings while inspecting for bubbles. - Correct Answer- 3 to 5
18. Air testing with over ___ psig (3 Psig for 12-Ft. Diameter FRP tanks) is hazardous
and may damage the tank - Correct Answer- 5 psig
19. Do not air test a tank that has previously contained - Correct Answer- flammable or
combustible liquids
20. Place ______ barricades at the ends of tanks being tested. - Correct Answer-
Warning
21. Avoid tank ends, man-ways, and fittings while the tank is under - Correct Answer-
Pressure
22. Release pressure in the tank before disconnecting any - Correct Answer- gauges or
test fittings.
23. Be aware some manufactures do not tighten fittings to allow for _____________
_____________ during shipping and storage. - Correct Answer- Temperature changes
24. True or False: Air tests are inconclusive without soaping and careful inspection for
bubbles? - Correct Answer- True
25. Tanks gauges must have a scale that will permit detection of small changes in
__________ that might go undetected on gauges with a ___________ _________. -
Correct Answer- Pressure, broader range.
26. Since the best accuracy of gauges is at mid-range, and test pressures must not
exeed 5 psig, use a gauge with a maximum limit of ____ or ______ - Correct Answer-
10 or 15 psig
27. Check the gauges __________ and _________ before use - Correct Answer-
operation and accuracy
28. Underground storage systems may include vapor-recovery - Correct Answer- Piping
and equipment
, 29. What can cause premature storage-system failures _________ - Correct Answer-
Debris and other foreign materials
30. Tank installers should have gone through training programs to improve their skills
and insure the install is __________ - Correct Answer- Successful
31. __________ kinds of plans are required to obtain permits, solicit bids, and provide
precise guidance for installers - Correct Answer- written
32. ___________________ should insure that the equipment to be installed meets all
applicable regulatory requirements before beginning an installation - Correct Answer-
Owners
33. Tanks should be ___________ inspected before installation - Correct Answer-
Visually
34. 2 Gauges should be used to reduce ___________ ____________ - Correct Answer-
gauge failure
35. A pressure-relief device should e used to prevent _______________ ____________
- Correct Answer- Over pressurization
36. True of False: Over pressurization could be a result of temperature changes -
Correct Answer- True
37. To avoid damaging the interstitial space between tank walls from over-
pressurization, avoid pressurizing the inner tank to a maximum of______ psig - Correct
Answer- 5 psig
38. Double wall tanks pressure should be monitored for _____ hour - Correct Answer- 1
39. If a compartment has single walled bulkheads, test the compartments on
___________ ___________ of the same bulkhead at different times. - Correct Answer-
A. Opposite sides
B. Different sides
C. Adjacent sides
D. Congruent sides
Answer B
40. If the compartmented tank has double-walled bulkheads, compartments may be
tested at the _____________ __________ - Correct Answer- A. First time
B. Second time
C. Same time
D. Last time
Answer C
Questions And Answers 2025
1. One of the significant causes of leaks in underground liquid storage systems is
____________ ________________ - Correct Answer- Improper Installation
2. Written Plans are required to - Correct Answer- obtain permits, solicit bids, and
provide precise guidance for installers.
3. The plans should - Correct 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 -
Correct Answer- Federal, state or local agencies.
5. All owners should ensure that the equipment to be installed meets - Correct Answer-
applicable regulatory requirements before being installed
6. Consult the local authorities who have jurisdiction in the area before storage-system
plans are - Correct Answer- finalized or construction is initiated.
7. All owners should ensure that the equipment to be installed meets all applicable
regulatory requirements before - Correct Answer- Being installed.
8. To avoid damage tanks must not be - Correct Answer- dropped, dragged, or handled
with sharp objects.
9. Tanks must not be dropped, dragged, or handled with sharp objects to avoid -
Correct Answer- Damage to the tank
10. The only time tanks really should be moved is when - Correct Answer- for
inspections and testing.
11. If a tanks is damaged at all throughout the moving process it must be - Correct
Answer- Repaired in accordance with the manufacture's instructions.
12. The proper way to move a tank is by lifting it, using the - Correct Answer- Lift lugs
that are installed by the manufacturer.
13. Tanks should be carefully lifted and lowered using - Correct Answer- Cables or
chains of adequate length.
,14. When two lifting lugs are being used, the angle between the lifting cable and vertical
should be no more than - Correct Answer- 30 degrees.
15. Stockpile piping materials and equipment in a _____________ _________ on the
job site - Correct Answer- Secure area
16. Confirm adherence to specifications by reporting to the owner about any - Correct
Answer- detected damage that could result in leakage or premature corrosion.
17. Pressure test single-walled tanks with _____ to _______ psig air pressure, soaping
all surfaces, seams and fittings while inspecting for bubbles. - Correct Answer- 3 to 5
18. Air testing with over ___ psig (3 Psig for 12-Ft. Diameter FRP tanks) is hazardous
and may damage the tank - Correct Answer- 5 psig
19. Do not air test a tank that has previously contained - Correct Answer- flammable or
combustible liquids
20. Place ______ barricades at the ends of tanks being tested. - Correct Answer-
Warning
21. Avoid tank ends, man-ways, and fittings while the tank is under - Correct Answer-
Pressure
22. Release pressure in the tank before disconnecting any - Correct Answer- gauges or
test fittings.
23. Be aware some manufactures do not tighten fittings to allow for _____________
_____________ during shipping and storage. - Correct Answer- Temperature changes
24. True or False: Air tests are inconclusive without soaping and careful inspection for
bubbles? - Correct Answer- True
25. Tanks gauges must have a scale that will permit detection of small changes in
__________ that might go undetected on gauges with a ___________ _________. -
Correct Answer- Pressure, broader range.
26. Since the best accuracy of gauges is at mid-range, and test pressures must not
exeed 5 psig, use a gauge with a maximum limit of ____ or ______ - Correct Answer-
10 or 15 psig
27. Check the gauges __________ and _________ before use - Correct Answer-
operation and accuracy
28. Underground storage systems may include vapor-recovery - Correct Answer- Piping
and equipment
, 29. What can cause premature storage-system failures _________ - Correct Answer-
Debris and other foreign materials
30. Tank installers should have gone through training programs to improve their skills
and insure the install is __________ - Correct Answer- Successful
31. __________ kinds of plans are required to obtain permits, solicit bids, and provide
precise guidance for installers - Correct Answer- written
32. ___________________ should insure that the equipment to be installed meets all
applicable regulatory requirements before beginning an installation - Correct Answer-
Owners
33. Tanks should be ___________ inspected before installation - Correct Answer-
Visually
34. 2 Gauges should be used to reduce ___________ ____________ - Correct Answer-
gauge failure
35. A pressure-relief device should e used to prevent _______________ ____________
- Correct Answer- Over pressurization
36. True of False: Over pressurization could be a result of temperature changes -
Correct Answer- True
37. To avoid damaging the interstitial space between tank walls from over-
pressurization, avoid pressurizing the inner tank to a maximum of______ psig - Correct
Answer- 5 psig
38. Double wall tanks pressure should be monitored for _____ hour - Correct Answer- 1
39. If a compartment has single walled bulkheads, test the compartments on
___________ ___________ of the same bulkhead at different times. - Correct Answer-
A. Opposite sides
B. Different sides
C. Adjacent sides
D. Congruent sides
Answer B
40. If the compartmented tank has double-walled bulkheads, compartments may be
tested at the _____________ __________ - Correct Answer- A. First time
B. Second time
C. Same time
D. Last time
Answer C
