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U1 UST Installation/Retrofitting Exam Questions With Verified Answers
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U1 UST Installation/Retrofitting ExamQuestions With Verified Answers 2024-2025
1. One of the major causes of leakage in subterranean liquid storage systems is
____________ ________________ - ANSWER Improper installation
2. Written plans are essential to acquire permits, solicit bids, and offer specific
instructions to installers.
3. The plans should ANSWER. Describe the property, specify the size and position
of the tanks, list the liquids to be stored, and describe the placement of the
dispensers and piping.
4. The storage systems addressed in this recommended practice are often regulated
by federal, state, or municipal bodies.
5. All owners should confirm that the equipment to be installed meets the necessary
regulatory criteria before it is installed.
6. Consult local authorities with jurisdiction in the area before finalizing
storage-system plans or beginning construction.
7. Before installing any equipment, all owners should check that it complies all
applicable regulatory requirements. Being placed.
8. To prevent damage, tanks should not be dropped, dragged, or handled with sharp
items.
,9. Tanks should not be dropped, dragged, or handled with sharp items to avoid -
damage to the tank.
10. Tanks should only be moved when they are inspected and tested.
11. If a tank is damaged during the transporting procedure, it must be repaired
according to the manufacturer's recommendations.
12. The proper technique to transfer a tank is to lift it using the
manufacturer-installed - ANSWER Lift lugs.
13. Tanks should be properly hoisted and lowered using adequate-length cables or
chains.
14. When two lifting lugs are utilized, the angle between the lifting cable and the
vertical shall not exceed - ANSWER 30°.
15. Stockpile piping materials and equipment in a secure area on the job site -
ANSWER
16. Confirm conformity to specifications by informing the owner of any observed
damage that could cause leakage or early deterioration.
17. Test single-walled tanks at _____ to _______ psig air pressure, soaping all
surfaces, seams, and fittings and examining for bubbles. - ANSWER 3 to 5.
18. Air testing with more than ___ psig (3 psig for 12-foot diameter FRP tanks) is
risky and may destroy the tank - ANSWER 5 psig
19. Do not air-test a tank that previously held flammable or combustible liquids.
, 20. Place barricades at the ends of the tanks being tested. - ANSWER Warning:
21. Avoid tank ends, manways, and fittings when the tank is under pressure.
22. Release tank pressure before detaching any ANSWER gauges or test fittings.
23. Be mindful that some manufacturers may not tighten fittings enough to allow
for _____________ _____________ during transportation and storage. - ANSWER
Temperature changes.
24. Is it true or false that air tests are inconclusive without soaping and meticulous
bubble inspection? - The answer is true.
25. Tank gauges must have a scale that allows for the identification of minor
changes in __________ that would otherwise be undetected on gauges with a
_________ _________. - ANSWER Pressure, a wider range.
26. Because the highest accuracy of gauges is at mid-range, and test pressures must
not exceed 5 psig, select a gauge with a maximum limit of ____ or ______.
ANSWER 10 or 15 psig.
27. Before using the gauges __________ and _________, make sure they are
operational and accurate.
28. Underground storage systems may feature vapor recovery. - ANSWER Piping
and Equipment
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