WV Underground Install and Repair
Comprehensive Exam with Correct Answers
1. What is the proper way to move a tank? - Correct Answer Lifting Lugs
2. When two lifting lugs are used, the angle between the lifting cable and vertical
should be no more than_____? - Correct Answer 30 degrees
3. Before any attempt to move tanks is made, establish that ________ has
sufficient capacity and reach to life and lower the tanks? - Correct Answer
Hoisting
4. When performing pre-installing tank testing what should be performed? - Correct
Answer Soap Test
5. When performing a pre-installation air test what should be done to prevent over-
pressurization? - Correct Answer Use two gauges, use a pressure relief device
6. What is the maxium test pressure for tanks less than 12 ft. diameter? - Correct
Answer 5 psi
7. What is the space between the inner and outer tank wall called? - Correct
Answer Interstice
8. A double wall tank is delivered to the site with a vacuum on the interstice. The
vacuum gauge indicates a level below the minimum level set by the manufacturer
Who should be contacted? - Correct Answer Tank Manufacturer
9. Which of the following factors aggravate excavation problems? - Correct
Answer ground water and surface water, unstable soil, adjacent back filled
areas, frost, presence of released product, and vibration.
10. Which of the following factors should be considered when determining the slope
to be used for the excavation walls? - Correct Answer soil conditions, depth of
the excavation, shoring requirements, safety considerations
11. PEI/ RP100 recommends that tanks be set on back fill material at least ------
thick? - Correct Answer 1 foot
12. PEI/PR100 recommends that at least how much backfill material should be
between the tanks? - Correct Answer 2 feet
,13. PEI/RP 100 recommends that at least how much backfill material should be
between the tanks and the excavation walls? - Correct Answer 2 feet
14. Under what conditions are placing a tank directly on a hold-down pad permitted?
- Correct Answer No conditions
15. Paving over tanks in traffic areas should extend how far beyond the perimeter of
the tank excavation? - Correct Answer 1 foot
16. PEI/RP100 recommends in areas where fully loaded product transport vehicles
are likely to pass over the tank area. that the reinforced concrete over the tank be
at least much thick? - Correct Answer 8 inches
17. According to the PEI/RP 100-11 how is the maximum burial depth of a tank
measured? - Correct Answer from the top of the tank
18. According to PEI/Rp100-11 what is the standard maximum burial depth for
fiberglass tank? - Correct Answer 7 feet
19. According to PEI/RP100-11 what is the maximum burial depth for steel tanks? -
Correct Answer 5 feet
20. How far from the edge of the tank excavation should excavated material that
cannot be immediately removed be stockpiled? - Correct Answer 2 feet
21. What are common deficiencies that adversely affect the structural integrity and
coatings of tanks? - Correct Answer incorrect backfill, improper placement,
rocks or debris, voids under the lower quadrant of tank failure to prevent
migration of backfill materials.
22. What does PEI/Rp100-11 state are the "standard" backfill materials for fiberglass
tanks? - Correct Answer pea gravel and crushed rock
23. When installing fiberglass tanks, the bottom of the excavation should be covered
by a minimum of ______ of suitable graded and compacted back fill materials? -
Correct Answer 1 foot
24. According to the PEI/RP100-11 when sand is used as a backfill, what is the
recommended compaction specification? - Correct Answer lifts, compact each
one
25. Why is measuring the deflection of fiberglass tanks important - Correct Answer
Amanda is hot (you didn't answer this one) ;)
26. What is the purpose of filter fabric in a tank excavation? - Correct Answer
designed to let water pass through without letting backfill materials to move
, 27. For the purposes of calculating tank burial depth, 1 inch of reinforced concrete
over the tank is equivalent to how many inches of compacted back fill? - Correct
Answer 1.5
28. Where must "deadman" anchors be placed to be effective? - Correct Answer
Outside diameter of the tank
29. What are the minimum dimenstions for a bottom hold down anchorage pad? -
Correct Answer 8 inch concrete extended 18 inches beyond tank, and 1 foot
beyond each end
30. When installing a bottom hold down pad what factors must be calculated for each
installation? - Correct Answer thickness of the pad, aount of concrete
reinforcement, and the number and size of anchor points
31. When should vent restriction devices, often referred to as "ball and float valves"
NOT be installed on a UST system? - Correct Answer Amanda is the best future
wife for me (you didn't answer this one)
32. What components should a monitoring well contain? - Correct Answer Jerome
has a booty (didn't answer this one)
33. When sensors are used for elak detection in disenser sumps, where should the
sensors be installed? - Correct Answer Bottom of the sump
34. Galvanized product piping is allowed on piping containing which product -
Correct Answer Gas
35. What is the minimum distance between product pipes in a trench - Correct
Answer 4 inches
36. what is the minimum distance between the piping and the trench excavation
walls? - Correct Answer 6 inches
37. what is the minimum distance in a piping trench between a conduit and the piping
in the trench? - Correct Answer 6 inches
38. Shear Valves are used on which type of sytem? - Correct Answer pressurized
product
39. When should new product piping and storage sytems be tested? - Correct
Answer before back filling, during construction, before placing a system into
operation
Comprehensive Exam with Correct Answers
1. What is the proper way to move a tank? - Correct Answer Lifting Lugs
2. When two lifting lugs are used, the angle between the lifting cable and vertical
should be no more than_____? - Correct Answer 30 degrees
3. Before any attempt to move tanks is made, establish that ________ has
sufficient capacity and reach to life and lower the tanks? - Correct Answer
Hoisting
4. When performing pre-installing tank testing what should be performed? - Correct
Answer Soap Test
5. When performing a pre-installation air test what should be done to prevent over-
pressurization? - Correct Answer Use two gauges, use a pressure relief device
6. What is the maxium test pressure for tanks less than 12 ft. diameter? - Correct
Answer 5 psi
7. What is the space between the inner and outer tank wall called? - Correct
Answer Interstice
8. A double wall tank is delivered to the site with a vacuum on the interstice. The
vacuum gauge indicates a level below the minimum level set by the manufacturer
Who should be contacted? - Correct Answer Tank Manufacturer
9. Which of the following factors aggravate excavation problems? - Correct
Answer ground water and surface water, unstable soil, adjacent back filled
areas, frost, presence of released product, and vibration.
10. Which of the following factors should be considered when determining the slope
to be used for the excavation walls? - Correct Answer soil conditions, depth of
the excavation, shoring requirements, safety considerations
11. PEI/ RP100 recommends that tanks be set on back fill material at least ------
thick? - Correct Answer 1 foot
12. PEI/PR100 recommends that at least how much backfill material should be
between the tanks? - Correct Answer 2 feet
,13. PEI/RP 100 recommends that at least how much backfill material should be
between the tanks and the excavation walls? - Correct Answer 2 feet
14. Under what conditions are placing a tank directly on a hold-down pad permitted?
- Correct Answer No conditions
15. Paving over tanks in traffic areas should extend how far beyond the perimeter of
the tank excavation? - Correct Answer 1 foot
16. PEI/RP100 recommends in areas where fully loaded product transport vehicles
are likely to pass over the tank area. that the reinforced concrete over the tank be
at least much thick? - Correct Answer 8 inches
17. According to the PEI/RP 100-11 how is the maximum burial depth of a tank
measured? - Correct Answer from the top of the tank
18. According to PEI/Rp100-11 what is the standard maximum burial depth for
fiberglass tank? - Correct Answer 7 feet
19. According to PEI/RP100-11 what is the maximum burial depth for steel tanks? -
Correct Answer 5 feet
20. How far from the edge of the tank excavation should excavated material that
cannot be immediately removed be stockpiled? - Correct Answer 2 feet
21. What are common deficiencies that adversely affect the structural integrity and
coatings of tanks? - Correct Answer incorrect backfill, improper placement,
rocks or debris, voids under the lower quadrant of tank failure to prevent
migration of backfill materials.
22. What does PEI/Rp100-11 state are the "standard" backfill materials for fiberglass
tanks? - Correct Answer pea gravel and crushed rock
23. When installing fiberglass tanks, the bottom of the excavation should be covered
by a minimum of ______ of suitable graded and compacted back fill materials? -
Correct Answer 1 foot
24. According to the PEI/RP100-11 when sand is used as a backfill, what is the
recommended compaction specification? - Correct Answer lifts, compact each
one
25. Why is measuring the deflection of fiberglass tanks important - Correct Answer
Amanda is hot (you didn't answer this one) ;)
26. What is the purpose of filter fabric in a tank excavation? - Correct Answer
designed to let water pass through without letting backfill materials to move
, 27. For the purposes of calculating tank burial depth, 1 inch of reinforced concrete
over the tank is equivalent to how many inches of compacted back fill? - Correct
Answer 1.5
28. Where must "deadman" anchors be placed to be effective? - Correct Answer
Outside diameter of the tank
29. What are the minimum dimenstions for a bottom hold down anchorage pad? -
Correct Answer 8 inch concrete extended 18 inches beyond tank, and 1 foot
beyond each end
30. When installing a bottom hold down pad what factors must be calculated for each
installation? - Correct Answer thickness of the pad, aount of concrete
reinforcement, and the number and size of anchor points
31. When should vent restriction devices, often referred to as "ball and float valves"
NOT be installed on a UST system? - Correct Answer Amanda is the best future
wife for me (you didn't answer this one)
32. What components should a monitoring well contain? - Correct Answer Jerome
has a booty (didn't answer this one)
33. When sensors are used for elak detection in disenser sumps, where should the
sensors be installed? - Correct Answer Bottom of the sump
34. Galvanized product piping is allowed on piping containing which product -
Correct Answer Gas
35. What is the minimum distance between product pipes in a trench - Correct
Answer 4 inches
36. what is the minimum distance between the piping and the trench excavation
walls? - Correct Answer 6 inches
37. what is the minimum distance in a piping trench between a conduit and the piping
in the trench? - Correct Answer 6 inches
38. Shear Valves are used on which type of sytem? - Correct Answer pressurized
product
39. When should new product piping and storage sytems be tested? - Correct
Answer before back filling, during construction, before placing a system into
operation
