U1 UST INSTALLATION/RETROFITTING EXAM- COMPLETE
QUESTIONS AND DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR JUST RELEASED
Question 1: 59. What are the standard back fill materials for a
fiberglass tank.
A. pea gravel and crushed rock
B. pea gravel and dirt
C. pea gravel and water
D. sawdust and pea gravel
Answer:
A. pea gravel and crushed rock
Question 2: 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.
A. 10
B. 3
C. 1
D. 2
Answer:
C. 1
Question 3: 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.
A. 60
B. 65
, C. 55
D. 70
Answer:
A. 60
Question 4: 62. During construction the tank should not be used to
support
A. Cribbing
B. Bracing
C. Blocking
D. All of the above
Answer:
D. All of the above
Question 5: 63. A ______________ should be used where
installation are located in areas subject to high water tables of
flooding.
Answer:
Anchoring
Question 6: 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
Question 7: 65. A primary method of restraining tanks in areas
subject to flooding is to ___________ the burial depth
, A. level
B. Increase
C. Decrease
D. Diminish
Answer:
B. Increase
Question 8: 66. The ________________ and _______________ of the
tank are the most significant factors that determine the buoyancy
of the tank.
Answer:
Diameter, Capacity
Question 9: 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
Question 10: 68. Filter fabrics are ______________ designed to
prevent movement of back fill materials, while permitting water to
pass through
Answer:
Geotextiles
Question 11: 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
Question 12: 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.
A. Meet
B. Exceed
C. Fall short of
D. Be inferior of
Answer:
B. Exceed
Question 13: 71. When adding ballast to an excavation what is the
only type of equipment that should be used _____________.
Answer:
Lifting
Question 14: 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
Question 15: 73. Weight can be added to the top of a buried tank to
offset ____________
Answer:
QUESTIONS AND DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR JUST RELEASED
Question 1: 59. What are the standard back fill materials for a
fiberglass tank.
A. pea gravel and crushed rock
B. pea gravel and dirt
C. pea gravel and water
D. sawdust and pea gravel
Answer:
A. pea gravel and crushed rock
Question 2: 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.
A. 10
B. 3
C. 1
D. 2
Answer:
C. 1
Question 3: 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.
A. 60
B. 65
, C. 55
D. 70
Answer:
A. 60
Question 4: 62. During construction the tank should not be used to
support
A. Cribbing
B. Bracing
C. Blocking
D. All of the above
Answer:
D. All of the above
Question 5: 63. A ______________ should be used where
installation are located in areas subject to high water tables of
flooding.
Answer:
Anchoring
Question 6: 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
Question 7: 65. A primary method of restraining tanks in areas
subject to flooding is to ___________ the burial depth
, A. level
B. Increase
C. Decrease
D. Diminish
Answer:
B. Increase
Question 8: 66. The ________________ and _______________ of the
tank are the most significant factors that determine the buoyancy
of the tank.
Answer:
Diameter, Capacity
Question 9: 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
Question 10: 68. Filter fabrics are ______________ designed to
prevent movement of back fill materials, while permitting water to
pass through
Answer:
Geotextiles
Question 11: 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
Question 12: 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.
A. Meet
B. Exceed
C. Fall short of
D. Be inferior of
Answer:
B. Exceed
Question 13: 71. When adding ballast to an excavation what is the
only type of equipment that should be used _____________.
Answer:
Lifting
Question 14: 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
Question 15: 73. Weight can be added to the top of a buried tank to
offset ____________
Answer:
