UST Inspector Sample Test Questions
(Questions pulled from the PPT files * =
Experimental question with uncertain
answers
*A UST that contains waste oil must comply with
overfill prevention unless it receives _____ gallons
per transfer.
a. 15
b. 25
c. 10
d. 50 Correct Answers b. 25
23 CCR 2635(c)(2)
*All of the following should be inspected and
documented on the Monitoring System Certification
form EXCEPT:
a. remote overfill alarms.
b. the emergency shut-off switch.
c. electronic line leak detectors.
d. entry and termination of in-tank gauging wires.
Correct Answers b. the emergency shut-off switch.
*For UST closures, soil samples must be taken
from:
,a. If UST is removed, beneath the removed portions
of the tank, 2 ft into native soil at each end of the
tank
b. If UST is removed, beneath the removed
portions of the tank, from the midpoint, 1 ft into
the native soil
c. If UST is not removed, beneath one side of the
tank, 3 ft into the native soil
d. If UST is not removed, 2 ft into native soil at
each end of the tank Correct Answers a. If UST is
removed, beneath the removed portions of the
tank, 2 ft into native soil at each end of the tank
23 CCR 2672(d)
*If a ball float is used as overfill prevention, it must
begin restricted flow at what capacity?
a. 96%
b. 85%
c. 90%
d. None of the above Correct Answers c. 90%
23 CCR 2635(c)(1)(A)
*Piping for USTs containing motor vehicle fuel must
be made of any of the following materials except:
a. Fiberglass-reinforced plastic
b. Cathodically protected steel
,c. PVC piping
d. None of the above Correct Answers c. PVC
piping
*The shear section of a shear valve in the UDC
must be located ______ inches above the top
surface of the dispenser.
a. 1
b. 1 1/2
c. 1/2
d. 1/4 Correct Answers c. 1/2
PEI 1200 10.2.6 (pg.35)
*Upon installation, all new primary piping and
secondary containment systems of USTs must be
tested for tightness hydrostatically at what design
operating pressure?
a. 100% operating pressure
b. 150% operating pressure
c. 110% operating pressure
d. None of the above Correct Answers b. 150%
operating pressure
23 CCR 2636(e)
*What is the purpose of site-specific variance?
, a. Allows an alternative method of construction or
monitoring
b. Distinguishes between different types of UST
systems
c. Distinguishes between different types of
monitoring panels
d. Allows for installation of multiple underground
storage tanks Correct Answers a. Allows an
alternative method of construction or monitoring
*Which is considered a "fueling incident"?
a. Customer reporting fuel is coming out of
dispenser too slow
b. Customer reporting fuel is not coming out of
dispenser in the correct amount
c. Customer spills a few drops of fuel after
separating from their fuel tank inlet.
d. A technician spills a few drops of fuel during leak
detection testing. Correct Answers a. Customer
reporting fuel is coming out of dispenser too slow
PEI 500 Section 9 (pg. 28)
*Which of the following is not a valid qualitative
release detection method?
a) Vadose Zone monitoring
b) Ground Water monitoring
c) Overfill monitoring
(Questions pulled from the PPT files * =
Experimental question with uncertain
answers
*A UST that contains waste oil must comply with
overfill prevention unless it receives _____ gallons
per transfer.
a. 15
b. 25
c. 10
d. 50 Correct Answers b. 25
23 CCR 2635(c)(2)
*All of the following should be inspected and
documented on the Monitoring System Certification
form EXCEPT:
a. remote overfill alarms.
b. the emergency shut-off switch.
c. electronic line leak detectors.
d. entry and termination of in-tank gauging wires.
Correct Answers b. the emergency shut-off switch.
*For UST closures, soil samples must be taken
from:
,a. If UST is removed, beneath the removed portions
of the tank, 2 ft into native soil at each end of the
tank
b. If UST is removed, beneath the removed
portions of the tank, from the midpoint, 1 ft into
the native soil
c. If UST is not removed, beneath one side of the
tank, 3 ft into the native soil
d. If UST is not removed, 2 ft into native soil at
each end of the tank Correct Answers a. If UST is
removed, beneath the removed portions of the
tank, 2 ft into native soil at each end of the tank
23 CCR 2672(d)
*If a ball float is used as overfill prevention, it must
begin restricted flow at what capacity?
a. 96%
b. 85%
c. 90%
d. None of the above Correct Answers c. 90%
23 CCR 2635(c)(1)(A)
*Piping for USTs containing motor vehicle fuel must
be made of any of the following materials except:
a. Fiberglass-reinforced plastic
b. Cathodically protected steel
,c. PVC piping
d. None of the above Correct Answers c. PVC
piping
*The shear section of a shear valve in the UDC
must be located ______ inches above the top
surface of the dispenser.
a. 1
b. 1 1/2
c. 1/2
d. 1/4 Correct Answers c. 1/2
PEI 1200 10.2.6 (pg.35)
*Upon installation, all new primary piping and
secondary containment systems of USTs must be
tested for tightness hydrostatically at what design
operating pressure?
a. 100% operating pressure
b. 150% operating pressure
c. 110% operating pressure
d. None of the above Correct Answers b. 150%
operating pressure
23 CCR 2636(e)
*What is the purpose of site-specific variance?
, a. Allows an alternative method of construction or
monitoring
b. Distinguishes between different types of UST
systems
c. Distinguishes between different types of
monitoring panels
d. Allows for installation of multiple underground
storage tanks Correct Answers a. Allows an
alternative method of construction or monitoring
*Which is considered a "fueling incident"?
a. Customer reporting fuel is coming out of
dispenser too slow
b. Customer reporting fuel is not coming out of
dispenser in the correct amount
c. Customer spills a few drops of fuel after
separating from their fuel tank inlet.
d. A technician spills a few drops of fuel during leak
detection testing. Correct Answers a. Customer
reporting fuel is coming out of dispenser too slow
PEI 500 Section 9 (pg. 28)
*Which of the following is not a valid qualitative
release detection method?
a) Vadose Zone monitoring
b) Ground Water monitoring
c) Overfill monitoring
