CLASS A/B OPERATOR UNDERGROUND STORAGE EXAM
2026 LATEST UPDATE QUESTIONS AND CORRECT VEIFIED
ANSWERS ALREADY GRADED A+
MUSTR requires what to happen with a UST before it is removed from the ground or
closed in place? - ANS-Is registered and all fees are paid
When using secondary containment with interstitial monitor must be checked at least
once every... - ANS-30 days
A manual tank gauge stick must be marked to the nearest: - ANS-1/8 inch
Records of tank and piping tightness testing should be maintained for: - ANS-5 years
Class C Operators should know: - ANS-How to respond to emergencies at the
facility
If LARA determines that a UST system is out of compliance with state and federal
regualtions, the __________ for that UST system must. be retrained. - ANS-Class A
Operator
Which UST operators are responsible for maintaining compliance with federal, state,
and local regulations? - ANS-Class A Operator
Which description best describes a Class B Operator? - ANS-Individuals focused on
day-to-day aspects of operating, maintaining, and record keeping at the locations
he or she is responsible for
Class A Operators must take and pass the ICC Class A Operator Exam every _______.
- ANS-5 years
How often must Class B Operators conduct a site inspection of the facility to determine
compliance? - ANS-Quarterly
In a pressurized pump system, where is the pump located? - ANS-In the tank
Stage I vapor recovery is a method of preventing vapors from escaping into the
enviornment by doing what? - ANS-During the fuel delivery process the fuel tanker
returns vapors back into the delivery truck
What does product compatibility meann? - ANS-The regulated substance stored will
not react negatively with the tank material
, What is secondary containment? - ANS-A method of containing a spill or leak if a
leak should accrue from the primary tank or line
What is an interstice? - ANS-The space between the two tanks of secondary
containment
If using inventory control, you should measure the product in your tank _______. - ANS-
Every day
Manual tank gauging cannot be used on tanks with a capacity over _______ gallons. -
ANS-2,000
Periodic ATG tests gather data ______. - ANS-When the facility is closed (If this choice
isn't given then you would choose the choice that says 'during the quiet intervals
between dispensing events')
Regulations require that UST systems be monitored for releases at least once every
__________. - ANS-30 days
SIR is an abbreviation for... - ANS-Statistical Inventory Reconciliation
Which method uses sensors that detect petroleum product in the soil? - ANS-Vapor
Monitoring
An overfill alarm is not capable of shutting off the flow of product during fuel delivery. -
ANS-True
A spill catchment basin or spill bucket is simply a bucket used to dispose of oil-
absorbent materials and clean up materials used after a spill has occurred. - ANS-False
What does overfill protection do? - ANS-It can stop and/or reduce product delivery flow
before the UST becomes completely full and begins releasing fuel into the environment
What is cathodic protection? - ANS-A system that is installed to prevent corrosion of
steel tanks and piping
An overfill alarm will alert operators and delivery personnel when a UST is _______ full
or within one minuts of being overfilled. - ANS-90%
As of 1998, spill buckets have been required for all UST/AST systems that recieve
deliveries of more than _________ gallons at a time. - ANS-25
What are sensitive receptors? - ANS-Storm drains, nearby bodies of water, drinking
water wells, or curb breaks where regulated substances could enter the environment.
2026 LATEST UPDATE QUESTIONS AND CORRECT VEIFIED
ANSWERS ALREADY GRADED A+
MUSTR requires what to happen with a UST before it is removed from the ground or
closed in place? - ANS-Is registered and all fees are paid
When using secondary containment with interstitial monitor must be checked at least
once every... - ANS-30 days
A manual tank gauge stick must be marked to the nearest: - ANS-1/8 inch
Records of tank and piping tightness testing should be maintained for: - ANS-5 years
Class C Operators should know: - ANS-How to respond to emergencies at the
facility
If LARA determines that a UST system is out of compliance with state and federal
regualtions, the __________ for that UST system must. be retrained. - ANS-Class A
Operator
Which UST operators are responsible for maintaining compliance with federal, state,
and local regulations? - ANS-Class A Operator
Which description best describes a Class B Operator? - ANS-Individuals focused on
day-to-day aspects of operating, maintaining, and record keeping at the locations
he or she is responsible for
Class A Operators must take and pass the ICC Class A Operator Exam every _______.
- ANS-5 years
How often must Class B Operators conduct a site inspection of the facility to determine
compliance? - ANS-Quarterly
In a pressurized pump system, where is the pump located? - ANS-In the tank
Stage I vapor recovery is a method of preventing vapors from escaping into the
enviornment by doing what? - ANS-During the fuel delivery process the fuel tanker
returns vapors back into the delivery truck
What does product compatibility meann? - ANS-The regulated substance stored will
not react negatively with the tank material
, What is secondary containment? - ANS-A method of containing a spill or leak if a
leak should accrue from the primary tank or line
What is an interstice? - ANS-The space between the two tanks of secondary
containment
If using inventory control, you should measure the product in your tank _______. - ANS-
Every day
Manual tank gauging cannot be used on tanks with a capacity over _______ gallons. -
ANS-2,000
Periodic ATG tests gather data ______. - ANS-When the facility is closed (If this choice
isn't given then you would choose the choice that says 'during the quiet intervals
between dispensing events')
Regulations require that UST systems be monitored for releases at least once every
__________. - ANS-30 days
SIR is an abbreviation for... - ANS-Statistical Inventory Reconciliation
Which method uses sensors that detect petroleum product in the soil? - ANS-Vapor
Monitoring
An overfill alarm is not capable of shutting off the flow of product during fuel delivery. -
ANS-True
A spill catchment basin or spill bucket is simply a bucket used to dispose of oil-
absorbent materials and clean up materials used after a spill has occurred. - ANS-False
What does overfill protection do? - ANS-It can stop and/or reduce product delivery flow
before the UST becomes completely full and begins releasing fuel into the environment
What is cathodic protection? - ANS-A system that is installed to prevent corrosion of
steel tanks and piping
An overfill alarm will alert operators and delivery personnel when a UST is _______ full
or within one minuts of being overfilled. - ANS-90%
As of 1998, spill buckets have been required for all UST/AST systems that recieve
deliveries of more than _________ gallons at a time. - ANS-25
What are sensitive receptors? - ANS-Storm drains, nearby bodies of water, drinking
water wells, or curb breaks where regulated substances could enter the environment.
