Class A/B Operator for Underground Storage Tank
2025 UPDATED Exam Study Questions and Answers
100% Solved
/. The Class A and Class B certification must be renewed every: - Answer-✅5 years
/.UST financial responsibility requirements apply to what? - Answer-✅600 gallon used
oil tank
/.Secondary Containment is required for what? - Answer-✅New UST Systems, Piping in
contact with the ground, and Replacement UST
/.A Class A operator shall maintain the records of UST site inspections for a *minimum*
of: - Answer-✅3 years
/.New owners of an existing UST system shall register the UST system with DEQ/LARA
within what period from date of ownership? - Answer-✅30 days
/.UST systems with cathodic protection should be inspected for proper operation by a
qualified cathodic protection tester on the following schedule: - Answer-✅Every three
years
/.UST systems with impressed current cathodic protection systems must be inspected at
a minimum: - Answer-✅Every 60 days
/.Within what period after a repair should a cathodically protected UST system be tested
to ensure it is working properly? - Answer-✅6 months
/.Pressurized underground piping that routinely contains regulated substances shall be
monitored for releases in a manner that meets what requirements? - Answer-✅Be
equipped with a line leak detector, and have an annual line tightness test
/.A suspected release must be confirmed to the DEQ/LARA within: - Answer-✅7 days
/.What actions are required in MUSTR when there is a spill or overfil of petroleum or
hazardouz substances that result in a release into groundwater, surface water, or
, substance soils? - Answer-✅Notify DEQ/LARA of a confirmed release, Immediately
clean up the spill or overfill, and Contain the spill
/.To permanently close a tank, an owner and operator shall: - Answer-✅Remove the
tank from the ground, Fill with an inert solid if removal jeopardizes the building structure
integrity, and Empty and clean the tank by removing all liquids and accumulated sludge
and purge it of all vapors
/.If you have 100 or fewer tanks, financial responsibility is required in the aggregate the
amount of: - Answer-✅$1 Million
/.Petroleum marketers are required to have finanical responsibility to cover X dollars per
occurence. X is.... - Answer-✅$1 Million
/.Can an owner use pollution liability insurance as a means of financial responsibility? -
Answer-✅Yes
/.An automatic tank gauge must be able to detect a leak of X gallons per hour. X is: -
Answer-✅0.2 gallons per hour
/.Statistical Inventory reconciliation (SIR) analyzes the following as a means of leak
detection: - Answer-✅Inventory, Delivery and Dispensing
/.Manual tank gauging can be used as the 'sole' means of a leak detection for tanks that
are X gallons or less in capacity. X is: - Answer-✅550 gallons
/.Check if the following statement is true or false: "A third party evaluation of a statistical
inventory reconciliation is good for any type of tank and product." - Answer-✅False
/.Automatic line leak detectors must be able to detect a leak of at least X gallons per
hour at a line pressure of 10 psi witin one hour. X is: - Answer-✅3 gallons per hour
/.Line testing of piping shall be capable of detecting X gallons per hour leak rate at 1
and a half times the operating pressure. X is: - Answer-✅0.1 gallons per hour
/.What actions are not appropriate when when the owner/operator becomes aware of a
spill or overfill? - Answer-✅Drain the spill to the storm sewer or nearby ditch
/.Upon confirmation of a release to the soil/groundwater/surface water the operator
shall: - Answer-✅Report the release to the DEQ within 24 hours, by fax or phone
/.A Class B operator shall not be responsible for more than the following facilities: -
Answer-✅45 facilities
2025 UPDATED Exam Study Questions and Answers
100% Solved
/. The Class A and Class B certification must be renewed every: - Answer-✅5 years
/.UST financial responsibility requirements apply to what? - Answer-✅600 gallon used
oil tank
/.Secondary Containment is required for what? - Answer-✅New UST Systems, Piping in
contact with the ground, and Replacement UST
/.A Class A operator shall maintain the records of UST site inspections for a *minimum*
of: - Answer-✅3 years
/.New owners of an existing UST system shall register the UST system with DEQ/LARA
within what period from date of ownership? - Answer-✅30 days
/.UST systems with cathodic protection should be inspected for proper operation by a
qualified cathodic protection tester on the following schedule: - Answer-✅Every three
years
/.UST systems with impressed current cathodic protection systems must be inspected at
a minimum: - Answer-✅Every 60 days
/.Within what period after a repair should a cathodically protected UST system be tested
to ensure it is working properly? - Answer-✅6 months
/.Pressurized underground piping that routinely contains regulated substances shall be
monitored for releases in a manner that meets what requirements? - Answer-✅Be
equipped with a line leak detector, and have an annual line tightness test
/.A suspected release must be confirmed to the DEQ/LARA within: - Answer-✅7 days
/.What actions are required in MUSTR when there is a spill or overfil of petroleum or
hazardouz substances that result in a release into groundwater, surface water, or
, substance soils? - Answer-✅Notify DEQ/LARA of a confirmed release, Immediately
clean up the spill or overfill, and Contain the spill
/.To permanently close a tank, an owner and operator shall: - Answer-✅Remove the
tank from the ground, Fill with an inert solid if removal jeopardizes the building structure
integrity, and Empty and clean the tank by removing all liquids and accumulated sludge
and purge it of all vapors
/.If you have 100 or fewer tanks, financial responsibility is required in the aggregate the
amount of: - Answer-✅$1 Million
/.Petroleum marketers are required to have finanical responsibility to cover X dollars per
occurence. X is.... - Answer-✅$1 Million
/.Can an owner use pollution liability insurance as a means of financial responsibility? -
Answer-✅Yes
/.An automatic tank gauge must be able to detect a leak of X gallons per hour. X is: -
Answer-✅0.2 gallons per hour
/.Statistical Inventory reconciliation (SIR) analyzes the following as a means of leak
detection: - Answer-✅Inventory, Delivery and Dispensing
/.Manual tank gauging can be used as the 'sole' means of a leak detection for tanks that
are X gallons or less in capacity. X is: - Answer-✅550 gallons
/.Check if the following statement is true or false: "A third party evaluation of a statistical
inventory reconciliation is good for any type of tank and product." - Answer-✅False
/.Automatic line leak detectors must be able to detect a leak of at least X gallons per
hour at a line pressure of 10 psi witin one hour. X is: - Answer-✅3 gallons per hour
/.Line testing of piping shall be capable of detecting X gallons per hour leak rate at 1
and a half times the operating pressure. X is: - Answer-✅0.1 gallons per hour
/.What actions are not appropriate when when the owner/operator becomes aware of a
spill or overfill? - Answer-✅Drain the spill to the storm sewer or nearby ditch
/.Upon confirmation of a release to the soil/groundwater/surface water the operator
shall: - Answer-✅Report the release to the DEQ within 24 hours, by fax or phone
/.A Class B operator shall not be responsible for more than the following facilities: -
Answer-✅45 facilities
