CLASS A/B OPERATOR FOR
UNDERGROUND STORAGE TANK
EXAM 2025 QUESTIONS AND ANSWERS
The Class A and Class B certification must be renewed every: - ANS 5 years
UST financial responsibility requirements apply to what? - ANS 600 gallon used oil tank
Secondary Containment is required for what? - ANS 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: -
ANS 3 years
New owners of an existing UST system shall register the UST system with DEQ/LARA within
what period from date of ownership? - ANS 30 days
UST systems with cathodic protection should be inspected for proper operation by a qualified
cathodic protection tester on the following schedule: - ANS Every three years
UST systems with impressed current cathodic protection systems must be inspected at a
minimum: - ANS Every 60 days
Within what period after a repair should a cathodically protected UST system be tested to
ensure it is working properly? - ANS 6 months
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, Pressurized underground piping that routinely contains regulated substances shall be
monitored for releases in a manner that meets what requirements? - ANS 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: - ANS 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? -
ANS 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: - ANS 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: - ANS $1 Million
Petroleum marketers are required to have finanical responsibility to cover X dollars per
occurence. X is.... - ANS $1 Million
Can an owner use pollution liability insurance as a means of financial responsibility? -
ANS Yes
An automatic tank gauge must be able to detect a leak of X gallons per hour. X is: - ANS 0.2
gallons per hour
Statistical Inventory reconciliation (SIR) analyzes the following as a means of leak detection: -
ANS Inventory, Delivery and Dispensing
2 Copyright ©2025 BRAINBARTER ALL RIGHTS RESERVED
UNDERGROUND STORAGE TANK
EXAM 2025 QUESTIONS AND ANSWERS
The Class A and Class B certification must be renewed every: - ANS 5 years
UST financial responsibility requirements apply to what? - ANS 600 gallon used oil tank
Secondary Containment is required for what? - ANS 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: -
ANS 3 years
New owners of an existing UST system shall register the UST system with DEQ/LARA within
what period from date of ownership? - ANS 30 days
UST systems with cathodic protection should be inspected for proper operation by a qualified
cathodic protection tester on the following schedule: - ANS Every three years
UST systems with impressed current cathodic protection systems must be inspected at a
minimum: - ANS Every 60 days
Within what period after a repair should a cathodically protected UST system be tested to
ensure it is working properly? - ANS 6 months
1 Copyright ©2025 BRAINBARTER ALL RIGHTS RESERVED
, Pressurized underground piping that routinely contains regulated substances shall be
monitored for releases in a manner that meets what requirements? - ANS 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: - ANS 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? -
ANS 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: - ANS 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: - ANS $1 Million
Petroleum marketers are required to have finanical responsibility to cover X dollars per
occurence. X is.... - ANS $1 Million
Can an owner use pollution liability insurance as a means of financial responsibility? -
ANS Yes
An automatic tank gauge must be able to detect a leak of X gallons per hour. X is: - ANS 0.2
gallons per hour
Statistical Inventory reconciliation (SIR) analyzes the following as a means of leak detection: -
ANS Inventory, Delivery and Dispensing
2 Copyright ©2025 BRAINBARTER ALL RIGHTS RESERVED
