ICC CALIFORNIA UST SERVICE TECHNICIAN CERTIFICATION
EXAM PREPARATION ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (100%VERIFIED ANSWERS) |
A+ GRADE ASSURED
Question 1
According to California regulations, what is the primary purpose of secondary
containment for an underground storage tank (UST) system?
A) To provide structural integrity for the primary tank.
B) To prevent spills during fuel delivery.
C) To contain releases from the primary containment until they can be
detected and removed.
D) To allow for easier removal and replacement of the UST.
E) To reduce fuel evaporation losses.
Correct Answer: C) To contain releases from the primary
containment until they can be detected and removed.
Rationale: The fundamental purpose of secondary containment, as
per California regulations (e.g., CCR Title 23), is to act as a barrier
to prevent the escape of a release from the primary containment
(tank or piping) into the environment, thereby allowing for
detection and removal.
Question 2
A California UST Service Technician is performing a routine inspection. Which
of the following is a common method for detecting leaks in the interstitial
space of a double-walled tank?
A) Manual tank gauging (MTG).
B) Statistical Inventory Reconciliation (SIR).
C) Automatic Tank Gauging (ATG) inventory data.
D) Interstitial monitoring with sensors.
E) Visual inspection of the surrounding soil.
Correct Answer: D) Interstitial monitoring with sensors.
Rationale: Interstitial monitoring involves placing sensors or
monitoring the physical space between the primary and secondary
containment walls to detect the presence of fuel or water, indicating
a leak in either the primary or secondary wall. The other options are
external leak detection methods or methods for primary tank
integrity.
Question 3
What is the required frequency for conducting a successful annual
monitoring of the secondary containment of flexible underground piping in
,California?
A) Monthly.
B) Quarterly.
C) Annually.
D) Every three years.
E) Every five years.
Correct Answer: C) Annually.
Rationale: California regulations (CCR Title 23, § 2637) require
annual monitoring of the secondary containment for flexible
underground piping. This is often done by pressure decay testing or
other approved methods.
Question 4
Which of the following components is required to be tested for tightness at
least once every three years for UST systems with pressurized piping in
California?
A) Spill bucket.
B) Under-dispenser containment (UDC).
C) Piping secondary containment.
D) Line leak detector (LLD).
E) Pressurized product piping.
Correct Answer: E) Pressurized product piping.
Rationale: Pressurized product piping in California UST systems
must undergo a line tightness test at least once every three years,
in addition to continuous monitoring by an automatic line leak
detector (LLD).
Question 5
When performing an annual visual inspection of a spill prevention equipment
(spill bucket), what condition would typically require repair or replacement?
A) Presence of small amounts of rainwater.
B) Dry leaves or debris.
C) Hairline crack in the basin or drain fitting.
D) Mild discoloration of the interior surface.
E) Intact but slightly faded label.
Correct Answer: C) Hairline crack in the basin or drain fitting.
Rationale: A hairline crack indicates a breach in the integrity of the
spill bucket, which is designed to contain spills. Any damage
compromising its containment capability requires repair or
replacement. Rainwater or debris should be removed, and
discoloration or fading are not integrity issues.
, Question 6
What is the minimum alarm condition for an automatic tank gauging (ATG)
system used for continuous interstitial monitoring of a double-walled tank?
A) An increase in product temperature.
B) A decrease in tank volume by 5 gallons per hour.
C) The presence of more than 1 inch of liquid in the interstitial space.
D) A sustained change in groundwater level.
E) A power outage exceeding 24 hours.
Correct Answer: C) The presence of more than 1 inch of liquid in the
interstitial space.
Rationale: California regulations (CCR Title 23, § 2635(e)(2)) specify
that for continuous interstitial monitoring, an alarm must activate if
liquid accumulates to a depth of 1 inch or more in the interstitial
space. This threshold indicates a potential leak in either the primary
or secondary wall.
Question 7
A Service Technician is installing a new submersible turbine pump (STP) in a
UST system. What is the primary purpose of the shear valve located at the
base of the dispenser?
A) To regulate the flow rate of fuel to the nozzle.
B) To prevent overfilling of the vehicle fuel tank.
C) To automatically shut off fuel flow in the event of a dispenser collision or
fire.
D) To filter impurities from the fuel.
E) To allow manual shutdown of the pump for maintenance.
Correct Answer: C) To automatically shut off fuel flow in the event of
a dispenser collision or fire.
Rationale: Shear valves (or impact valves) are safety devices
designed to automatically close and stop fuel flow from the piping in
the event of a severe impact to the dispenser, such as a vehicle
collision, or in the case of a fire, to prevent large-scale fuel releases.
Question 8
Which of the following is considered an acceptable method for continuous
leak detection for single-walled underground piping in California?
A) No acceptable method exists for continuous leak detection for single-
walled piping.
B) Visual inspection of the piping trench.
C) Manual inventory reconciliation.
D) Monthly groundwater monitoring.
EXAM PREPARATION ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (100%VERIFIED ANSWERS) |
A+ GRADE ASSURED
Question 1
According to California regulations, what is the primary purpose of secondary
containment for an underground storage tank (UST) system?
A) To provide structural integrity for the primary tank.
B) To prevent spills during fuel delivery.
C) To contain releases from the primary containment until they can be
detected and removed.
D) To allow for easier removal and replacement of the UST.
E) To reduce fuel evaporation losses.
Correct Answer: C) To contain releases from the primary
containment until they can be detected and removed.
Rationale: The fundamental purpose of secondary containment, as
per California regulations (e.g., CCR Title 23), is to act as a barrier
to prevent the escape of a release from the primary containment
(tank or piping) into the environment, thereby allowing for
detection and removal.
Question 2
A California UST Service Technician is performing a routine inspection. Which
of the following is a common method for detecting leaks in the interstitial
space of a double-walled tank?
A) Manual tank gauging (MTG).
B) Statistical Inventory Reconciliation (SIR).
C) Automatic Tank Gauging (ATG) inventory data.
D) Interstitial monitoring with sensors.
E) Visual inspection of the surrounding soil.
Correct Answer: D) Interstitial monitoring with sensors.
Rationale: Interstitial monitoring involves placing sensors or
monitoring the physical space between the primary and secondary
containment walls to detect the presence of fuel or water, indicating
a leak in either the primary or secondary wall. The other options are
external leak detection methods or methods for primary tank
integrity.
Question 3
What is the required frequency for conducting a successful annual
monitoring of the secondary containment of flexible underground piping in
,California?
A) Monthly.
B) Quarterly.
C) Annually.
D) Every three years.
E) Every five years.
Correct Answer: C) Annually.
Rationale: California regulations (CCR Title 23, § 2637) require
annual monitoring of the secondary containment for flexible
underground piping. This is often done by pressure decay testing or
other approved methods.
Question 4
Which of the following components is required to be tested for tightness at
least once every three years for UST systems with pressurized piping in
California?
A) Spill bucket.
B) Under-dispenser containment (UDC).
C) Piping secondary containment.
D) Line leak detector (LLD).
E) Pressurized product piping.
Correct Answer: E) Pressurized product piping.
Rationale: Pressurized product piping in California UST systems
must undergo a line tightness test at least once every three years,
in addition to continuous monitoring by an automatic line leak
detector (LLD).
Question 5
When performing an annual visual inspection of a spill prevention equipment
(spill bucket), what condition would typically require repair or replacement?
A) Presence of small amounts of rainwater.
B) Dry leaves or debris.
C) Hairline crack in the basin or drain fitting.
D) Mild discoloration of the interior surface.
E) Intact but slightly faded label.
Correct Answer: C) Hairline crack in the basin or drain fitting.
Rationale: A hairline crack indicates a breach in the integrity of the
spill bucket, which is designed to contain spills. Any damage
compromising its containment capability requires repair or
replacement. Rainwater or debris should be removed, and
discoloration or fading are not integrity issues.
, Question 6
What is the minimum alarm condition for an automatic tank gauging (ATG)
system used for continuous interstitial monitoring of a double-walled tank?
A) An increase in product temperature.
B) A decrease in tank volume by 5 gallons per hour.
C) The presence of more than 1 inch of liquid in the interstitial space.
D) A sustained change in groundwater level.
E) A power outage exceeding 24 hours.
Correct Answer: C) The presence of more than 1 inch of liquid in the
interstitial space.
Rationale: California regulations (CCR Title 23, § 2635(e)(2)) specify
that for continuous interstitial monitoring, an alarm must activate if
liquid accumulates to a depth of 1 inch or more in the interstitial
space. This threshold indicates a potential leak in either the primary
or secondary wall.
Question 7
A Service Technician is installing a new submersible turbine pump (STP) in a
UST system. What is the primary purpose of the shear valve located at the
base of the dispenser?
A) To regulate the flow rate of fuel to the nozzle.
B) To prevent overfilling of the vehicle fuel tank.
C) To automatically shut off fuel flow in the event of a dispenser collision or
fire.
D) To filter impurities from the fuel.
E) To allow manual shutdown of the pump for maintenance.
Correct Answer: C) To automatically shut off fuel flow in the event of
a dispenser collision or fire.
Rationale: Shear valves (or impact valves) are safety devices
designed to automatically close and stop fuel flow from the piping in
the event of a severe impact to the dispenser, such as a vehicle
collision, or in the case of a fire, to prevent large-scale fuel releases.
Question 8
Which of the following is considered an acceptable method for continuous
leak detection for single-walled underground piping in California?
A) No acceptable method exists for continuous leak detection for single-
walled piping.
B) Visual inspection of the piping trench.
C) Manual inventory reconciliation.
D) Monthly groundwater monitoring.
