U1 UST Installation/Retrofitting Exam 2025 | Complete Questions and Correct Answers, Exams of Industrial Engineering

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U1 UST Installation/Retrofitting Exam 2025 | Complete

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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.

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

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

41. Carefully inspect _______________ and __________________ surfaces of a tank shipped with a liquid-filled interstice for signs of leakage ---------CORRECT ANSWER-----------------Interior, exterior
42. A double-walled tank shipped with a _____________ on the interstice need not be subjected to an air/soap test. ---------CORRECT ANSWER-----------------A. Ballard B. Gauge C. Skid D. Vacuum Answer D
43. To avoid undermining foundations of existing structures excavation must be done ---------CORRECT ANSWER-----------------A. Carefully B. Tentatively C. Quickly D. Efficiently Answer A

47. To provide a firm foundation for the tank, set the tank on a bed of ___________ material one foot thick that extends one foot beyond the ends and sides of the tank. ---------CORRECT ANSWER-----------------backfill

48. ___ feet of backfill must be placed between adjacent tanks and between tanks and excavation walls. ---------CORRECT ANSWER-----------------A. 1 B. 2 C. 3 D. 4 Answer B

49. In areas subject to vehicle traffic, cover may consist of at least _________ inches of compacted backfill and ________ inches of asphaltic concrete, or___________ inches of reinforced concrete ---------CORRECT ANSWER-------------- ---30, 6, 18

50. Maximum burial depth, measured from the top of the tank, are established by tank __________ and ________________ ---------CORRECT ANSWER----------------- A. Manufacturers and the installers B. Independent testing laboratories C. Installers and independent testing labs D. Installers and the tank owner

E. Manufacturers F. Both B and E Answer F

51. For fiberglass tanks ______ feet is the standard max depth for the tank --------- CORRECT ANSWER----------------- 7
52. ________ feet is the typical burial depth for steel tanks ---------CORRECT ANSWER----------------- 5
53. Excavated materials that cannot be immediately removed from the site should be safely stockpiled at least _______ feet away from the edge of the tank excavation ---------CORRECT ANSWER----------------- 2
54. Common deficiencies that adversely affect the structural integrity and coating of tanks include ---------CORRECT ANSWER-----------------A. use of incorrect backfill material B. Inadequate or improper placement or compaction of backfill materials C. rocks of debris left in the excavation D. Voids under the lower quadrant of the tank E. Failure to prevent migration of backfill materials F. All of the above

59. What are the standard back fill materials for a fiberglass tank. ---------CORRECT ANSWER-----------------A. pea gravel and crushed rock B. pea gravel and dirt C. pea gravel and water D. sawdust and pea gravel Answer A
60. When dealing with a fiberglass tank the bottom of the excavation or hold- down pad must be covered with a minimum of ______ foot/ feet of suitably graded and compacted back fill material. ---------CORRECT ANSWER-----------------A. 10 B. 3 C. 1 D. 2 Answer C
61. Place sand and back fill into the excavation in twelve to eighteen inch lifts and compact after each lift. Repeat this process up to at least _________ % of the tank. ---------CORRECT ANSWER-----------------A. 60 B. 65 C. 55 D. 70 Answer A

62. During construction the tank should not be used to support ---------CORRECT ANSWER-----------------A. Cribbing B. Bracing C. Blocking D. All of the above Answer D
63. A ______________ should be used where installation are located in areas subject to high water tables of flooding. ---------CORRECT ANSWER----------------- Anchoring
64. During installation, tank vents and other openings that are not liquid-tight should be extended above the ____________ flood-stage water level until piping is complete. ---------CORRECT ANSWER-----------------Maximum
65. A primary method of restraining tanks in areas subject to flooding is to ___________ the burial depth ---------CORRECT ANSWER-----------------A. level B. Increase C. Decrease D. Diminish Anser b

D. Be inferior of Answer B

71. When adding ballast to an excavation what is the only type of equipment that should be used _____________. ---------CORRECT ANSWER-----------------Lifting
72. All methods of anchoring tanks used the weight of the back-fill and paving on top of the tank to offset ____________ forces. ---------CORRECT ANSWER------------ -----buoyancy
73. Weight can be added to the top of a buried tank to offset ____________ ------- --CORRECT ANSWER-----------------Buoyancy
74. A bottom hold-down pad usually consists of ___inches of reinforced concrete that extends at least ____inches beyond the tank sides and one foot beyond each end. ---------CORRECT ANSWER-----------------8,
75. Straps for steel tanks should be either nonmetallic or _________ ________. --- ------CORRECT ANSWER-----------------flat steel

76. In all cases, the set-points for overfill "alerts, " such as alarms or vent- restricting devices, should not exceed 90% of capacity and the set-points for product delivery shutdown through flapper-valve-type devices should not exceed ____%. ---------CORRECT ANSWER-----------------95%
77. Secure the straps to anchor points with ---------CORRECT ANSWER----------------- A. Anchor bolts B. Turnbuckles C. Wire cables D. All of the above Answer D
78. Slope concrete away from spill-containment man holes to prevent ______________ from entering. ---------CORRECT ANSWER-----------------Water
79. The manhole should provide flexibility between the fill pipe and the manhole assembly to ___________ ****** ---------CORRECT ANSWER-----------------A. Be able to bend if pressure is exerted during filling. B. Prevent the transfer of stress to the UST C. Create room is the manhole where to ever move or shift slightly D. All of the above

83. Vent Restrictions Devices are installed inside the UST just below the --------- CORRECT ANSWER-----------------A. Vent opening B. Fill pipe C. Submersible pump D. Coagulator pipe Answer A
84. Vent restriction devices must not be installed in storage systems that are equipped with_____________ pumps and air eliminators. ---------CORRECT ANSWER-----------------suction
85. Vent restriction devices will not work as ______________ ______________ measures when coaxial Stage I Vapor recovery is used. ---------CORRECT ANSWER-- ---------------A. Backup safety B. Overfill-prevention C. Spill containment D. None of the above Answer B
86. When installing an overfill-prevention device, refer to the _____________ chart provided by the tank manufacturer to determine the correct distance below the tank top for that device. ---------CORRECT ANSWER-----------------A. Measuring B. Units

C. Placement D. Gauging check this one

87. In all cases, the set-points for overfill "alerts, " such as alarms or vent- restricting devices, should not exceed ______%of capacity and the set-points for product delivery shutdown through flapper-valve-type devices should not exceed 95%. ---------CORRECT ANSWER-----------------90%
88. The installation should facilitate the detection of leakage by inspection or ______________________ ---------CORRECT ANSWER-----------------A. Continuous monitoring B. Leak detection C. Oil sensors D. All of the above answer D
89. Tank-Top sumps are containers designed to contain leaks or spills that involve tank-top fittings and equipment, and to isolate____________ pipefittings from the corrosive underground environment. ---------CORRECT ANSWER-----------------A. Steel B. Climatic C. Intrusive