1|Page
U1 UST Installation/Retrofitting Newest 2026/2027 Complete
Questions And Correct Answers ||Verified Exam!!||(Verified
Answers) |Already Graded A+||Newest Exam!!!
59. What are the standard back fill materials for a fiberglass
tank. - 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. - 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. - ANSWER-A. 60
,2|Page
B. 65
C. 55
D. 70
Answer A
62. During construction the tank should not be used to support
- 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. -
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. - ANSWER-
Maximum
,3|Page
65. A primary method of restraining tanks in areas subject to
flooding is to ___________ the burial depth - ANSWER-A. level
B. Increase
C. Decrease
D. Diminish
Answer b
66. The ________________ and _______________ of the tank
are the most significant factors that determine the buoyancy of
the tank. - ANSWER-Diameter, Capacity
67. A tank shipped with a liquid filled __________ or with an
interstice on which a vacuum is drawn, need not be subjected
to the instillation air/soap test - ANSWER-interstice
68. Filter fabrics are ______________ designed to prevent
movement of back fill materials, while permitting water to pass
through - ANSWER-Geotextiles
69. If dissimilar back fill material, such as sand and pea gravel,
are used in the same excavation, separate them with a
________ _____________ - ANSWER-Fabric filter
, 4|Page
70. If water ballast is used to sink a tank in a wet hole, the level
of ballast in the tank should not _____________ the level of
water in the hole. - ANSWER-A. Meet
B. Exceed
C. Fall short of
D. Be inferior of
Answer B
71. When adding ballast to an excavation what is the only type
of equipment that should be used _____________. - 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.
- ANSWER-buoyancy
73. Weight can be added to the top of a buried tank to offset
____________ - 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. - ANSWER-8,18
U1 UST Installation/Retrofitting Newest 2026/2027 Complete
Questions And Correct Answers ||Verified Exam!!||(Verified
Answers) |Already Graded A+||Newest Exam!!!
59. What are the standard back fill materials for a fiberglass
tank. - 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. - 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. - ANSWER-A. 60
,2|Page
B. 65
C. 55
D. 70
Answer A
62. During construction the tank should not be used to support
- 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. -
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. - ANSWER-
Maximum
,3|Page
65. A primary method of restraining tanks in areas subject to
flooding is to ___________ the burial depth - ANSWER-A. level
B. Increase
C. Decrease
D. Diminish
Answer b
66. The ________________ and _______________ of the tank
are the most significant factors that determine the buoyancy of
the tank. - ANSWER-Diameter, Capacity
67. A tank shipped with a liquid filled __________ or with an
interstice on which a vacuum is drawn, need not be subjected
to the instillation air/soap test - ANSWER-interstice
68. Filter fabrics are ______________ designed to prevent
movement of back fill materials, while permitting water to pass
through - ANSWER-Geotextiles
69. If dissimilar back fill material, such as sand and pea gravel,
are used in the same excavation, separate them with a
________ _____________ - ANSWER-Fabric filter
, 4|Page
70. If water ballast is used to sink a tank in a wet hole, the level
of ballast in the tank should not _____________ the level of
water in the hole. - ANSWER-A. Meet
B. Exceed
C. Fall short of
D. Be inferior of
Answer B
71. When adding ballast to an excavation what is the only type
of equipment that should be used _____________. - 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.
- ANSWER-buoyancy
73. Weight can be added to the top of a buried tank to offset
____________ - 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. - ANSWER-8,18
