Exam (elaborations)
U1 UST Installation Retrofitting
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U1 UST Installation Retrofitting
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U1 UST Installation/Retrofitting1. One of the significant causes of leaks in underground liquid storage systems is
____________ ________________ - ANS-Improper Installation
2. Written Plans are required to - ANS-obtain permits, solicit bids, and provide precise
guidance for installers.
3. The plans should - ANS-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 -
ANS-Federal, state or local agencies.
5. All owners should ensure that the equipment to be installed meets - ANS-applicable
regulatory requirements before being installed
6. Consult the local authorities who have jurisdiction in the area before storage-system
plans are - ANS-finalized or construction is initiated.
7. All owners should ensure that the equipment to be installed meets all applicable
regulatory requirements before - ANS-Being installed.
8. To avoid damage tanks must not be - ANS-dropped, dragged, or handled with sharp
objects.
9. Tanks must not be dropped, dragged, or handled with sharp objects to avoid -
ANS-Damage to the tank
10. The only time tanks really should be moved is when - ANS-for inspections and
testing.
11. If a tanks is damaged at all throughout the moving process it must be -
ANS-Repaired in accordance with the manufacture's instructions.
12. The proper way to move a tank is by lifting it, using the - ANS-Lift lugs that are
installed by the manufacturer.
,13. Tanks should be carefully lifted and lowered using - ANS-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 - ANS-30 degrees.
15. Stockpile piping materials and equipment in a _____________ _________ on the
job site - ANS-Secure area
16. Confirm adherence to specifications by reporting to the owner about any -
ANS-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. - ANS-3 to 5
18. Air testing with over ___ psig (3 Psig for 12-Ft. Diameter FRP tanks) is hazardous
and may damage the tank - ANS-5 psig
19. Do not air test a tank that has previously contained - ANS-flammable or combustible
liquids
20. Place ______ barricades at the ends of tanks being tested. - ANS-Warning
21. Avoid tank ends, man-ways, and fittings while the tank is under - ANS-Pressure
22. Release pressure in the tank before disconnecting any - ANS-gauges or test fittings.
23. Be aware some manufactures do not tighten fittings to allow for _____________
_____________ during shipping and storage. - ANS-Temperature changes
24. True or False: Air tests are inconclusive without soaping and careful inspection for
bubbles? - ANS-True
25. Tanks gauges must have a scale that will permit detection of small changes in
__________ that might go undetected on gauges with a ___________ _________. -
ANS-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 ______ - ANS-10 or 15 psig
, 27. Check the gauges __________ and _________ before use - ANS-operation and
accuracy
28. Underground storage systems may include vapor-recovery - ANS-Piping and
equipment
29. What can cause premature storage-system failures _________ - ANS-Debris and
other foreign materials
30. Tank installers should have gone through training programs to improve their skills
and insure the install is __________ - ANS-Successful
31. __________ kinds of plans are required to obtain permits, solicit bids, and provide
precise guidance for installers - ANS-written
32. ___________________ should insure that the equipment to be installed meets all
applicable regulatory requirements before beginning an installation - ANS-Owners
33. Tanks should be ___________ inspected before installation - ANS-Visually
34. 2 Gauges should be used to reduce ___________ ____________ - ANS-gauge
failure
35. A pressure-relief device should e used to prevent _______________ ____________
- ANS-Over pressurization
36. True of False: Over pressurization could be a result of temperature changes -
ANS-True
37. To avoid damaging the interstitial space between tank walls from
over-pressurization, avoid pressurizing the inner tank to a maximum of______ psig -
ANS-5 psig
38. Double wall tanks pressure should be monitored for _____ hour - ANS-1
39. If a compartment has single walled bulkheads, test the compartments on
___________ ___________ of the same bulkhead at different times. - ANS-A. Opposite
sides
B. Different sides
C. Adjacent sides
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