U3 ICC Tank Tightness Testing (60)
Questions and Answers
.1 gallon is added to a 4" fill pipe. How much did the level rise? - ANSWER-1.8"
A 10,000 gallon tank changes 4 degrees. How much of a volume change is that? -
ANSWER-28 gallons
A fueling system is considered to be underground if ____% or more is below ground. -
ANSWER-10%
A monitoring well lid is marked with a:
a. Black lid with a white equilateral triangle
b. White lid with a black equilateral triangle - ANSWER-b. White lid with a black
equilateral triangle
A tank is dented several inches during installation, but is still installed. The best way to
test it in the future is:
a. Cannot be tested, shouldn't be installed
b. Overfill volumetric
c. Underfill volumetric
d. Non volumetric - ANSWER-d. Non volumetric
A tank shipped with an interstice on which a vacuum is drawn:
a. Must still have a soap water test of the entire exterior surface to check for potential
leaks before it is installed
b. Need not be subjected to the pre installation air/soap test provided the tank arrives
within limits designed by the manufacturer
c. Must be hydrostatically tested before installation
d. Must have the vacuum increased to 15 Hg of vacuum for a period no less than 1 hour
and not decay beyond manufacturers allowable pressure loss. - ANSWER-b. Need not
be subjected to the pre installation air/soap test provided the tank arrives within limits
designed by the manufacturer
A vapor collection tank (vapor pot) is located between the underground tanks and
dispensers. It is designed to:
a. collect and condense vapors so they can be measured and reported to the local air
authority.
b. allow collection of condensed vapors at a low point and a means to remove them.
c. remove condensed vapors from the UST system to be disposed of when the tank
reaches no more than 95% full. - ANSWER-b. allow collection of condensed vapors at a
low point and a means to remove them.
According to EPA guidelines, the acceptable leak threshold for a product line test is:
, a. .01 gph
b. .1 gph
c. .2 gph
d. 3 gph - ANSWER-b. .1 gph
According to PEI, the drop tube must extend down within _____ inches from the bottom
of the gasoline tank. - ANSWER-6"
According to the EPA, Tank tightness test data must be maintained for:
a. 18 months
b. 3 years
c. 5 years
d. Until the next test is performed - ANSWER-d. Until the next test is performed
According to the EPA, the drop tube should extend to within ___ inches of the bottom of
the tank. - ANSWER-12"
All are examples of acceptable release detection for tanks, except:
a. Impressed current cathodic protection
b. Automatic tank gauging
c. Statistical inventory reconciliation
d. Soil-vapor monitoring - ANSWER-a. Impressed current cathodic protection
All are examples of overfill protection, except:
a. Vent restricting device
b. Drop tube with an automatic shut off device
c. Audible and visual alarm
d. Expandable bladder in manway - ANSWER-d. Expandable bladder in manway
All factors affect a volumetric tank test except:
a. Height and temperature of groundwater
b. Waiting periods after deliveries
c. Tank geometry
d. Evaporation - ANSWER-a. Height and temperature of groundwater
All factors would cause inaccurate data collection during an overfill test on manifolded
tanks, EXCEPT?
a. different tank types; (steel / fiberglass)
b. associated vapor pockets
c. difference in temperature
d. difference in diameters of tanks - ANSWER-d. difference in diameters of tanks
All of the following are considered part of the secondary containment system EXCEPT:
a. Under dispenser containment
b. Monitoring well
c. Containment sensor
Questions and Answers
.1 gallon is added to a 4" fill pipe. How much did the level rise? - ANSWER-1.8"
A 10,000 gallon tank changes 4 degrees. How much of a volume change is that? -
ANSWER-28 gallons
A fueling system is considered to be underground if ____% or more is below ground. -
ANSWER-10%
A monitoring well lid is marked with a:
a. Black lid with a white equilateral triangle
b. White lid with a black equilateral triangle - ANSWER-b. White lid with a black
equilateral triangle
A tank is dented several inches during installation, but is still installed. The best way to
test it in the future is:
a. Cannot be tested, shouldn't be installed
b. Overfill volumetric
c. Underfill volumetric
d. Non volumetric - ANSWER-d. Non volumetric
A tank shipped with an interstice on which a vacuum is drawn:
a. Must still have a soap water test of the entire exterior surface to check for potential
leaks before it is installed
b. Need not be subjected to the pre installation air/soap test provided the tank arrives
within limits designed by the manufacturer
c. Must be hydrostatically tested before installation
d. Must have the vacuum increased to 15 Hg of vacuum for a period no less than 1 hour
and not decay beyond manufacturers allowable pressure loss. - ANSWER-b. Need not
be subjected to the pre installation air/soap test provided the tank arrives within limits
designed by the manufacturer
A vapor collection tank (vapor pot) is located between the underground tanks and
dispensers. It is designed to:
a. collect and condense vapors so they can be measured and reported to the local air
authority.
b. allow collection of condensed vapors at a low point and a means to remove them.
c. remove condensed vapors from the UST system to be disposed of when the tank
reaches no more than 95% full. - ANSWER-b. allow collection of condensed vapors at a
low point and a means to remove them.
According to EPA guidelines, the acceptable leak threshold for a product line test is:
, a. .01 gph
b. .1 gph
c. .2 gph
d. 3 gph - ANSWER-b. .1 gph
According to PEI, the drop tube must extend down within _____ inches from the bottom
of the gasoline tank. - ANSWER-6"
According to the EPA, Tank tightness test data must be maintained for:
a. 18 months
b. 3 years
c. 5 years
d. Until the next test is performed - ANSWER-d. Until the next test is performed
According to the EPA, the drop tube should extend to within ___ inches of the bottom of
the tank. - ANSWER-12"
All are examples of acceptable release detection for tanks, except:
a. Impressed current cathodic protection
b. Automatic tank gauging
c. Statistical inventory reconciliation
d. Soil-vapor monitoring - ANSWER-a. Impressed current cathodic protection
All are examples of overfill protection, except:
a. Vent restricting device
b. Drop tube with an automatic shut off device
c. Audible and visual alarm
d. Expandable bladder in manway - ANSWER-d. Expandable bladder in manway
All factors affect a volumetric tank test except:
a. Height and temperature of groundwater
b. Waiting periods after deliveries
c. Tank geometry
d. Evaporation - ANSWER-a. Height and temperature of groundwater
All factors would cause inaccurate data collection during an overfill test on manifolded
tanks, EXCEPT?
a. different tank types; (steel / fiberglass)
b. associated vapor pockets
c. difference in temperature
d. difference in diameters of tanks - ANSWER-d. difference in diameters of tanks
All of the following are considered part of the secondary containment system EXCEPT:
a. Under dispenser containment
b. Monitoring well
c. Containment sensor
