Class A/B Operator for Underground Storage Tank
Exam 2026/2027 Questions And Correct Answers
Graded A+
UST systems with impressed current cathodic protection systems must be
inspected at a minimum:
Every 60 days
Within what period after a repair should a cathodically protected UST system be
tested to ensure it is working properly?
6 months
Pressurized underground piping that routinely contains regulated substances shall
be monitored for releases in a manner that meets what requirements?
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:
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?
,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:
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:
$1 Million
Petroleum marketers are required to have finanical responsibility to cover X dollars
per occurence. X is....
$1 Million
Can an owner use pollution liability insurance as a means of financial
responsibility?
Yes
An automatic tank gauge must be able to detect a leak of X gallons per hour. X is:
0.2 gallons per hour
, Statistical Inventory reconciliation (SIR) analyzes the following as a means of leak
detection:
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:
550 gallons
The Class A and Class B certification must be renewed every:
5 years
UST financial responsibility requirements apply to what?
600 gallon used oil tank
Secondary Containment is required for what?
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:
Exam 2026/2027 Questions And Correct Answers
Graded A+
UST systems with impressed current cathodic protection systems must be
inspected at a minimum:
Every 60 days
Within what period after a repair should a cathodically protected UST system be
tested to ensure it is working properly?
6 months
Pressurized underground piping that routinely contains regulated substances shall
be monitored for releases in a manner that meets what requirements?
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:
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?
,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:
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:
$1 Million
Petroleum marketers are required to have finanical responsibility to cover X dollars
per occurence. X is....
$1 Million
Can an owner use pollution liability insurance as a means of financial
responsibility?
Yes
An automatic tank gauge must be able to detect a leak of X gallons per hour. X is:
0.2 gallons per hour
, Statistical Inventory reconciliation (SIR) analyzes the following as a means of leak
detection:
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:
550 gallons
The Class A and Class B certification must be renewed every:
5 years
UST financial responsibility requirements apply to what?
600 gallon used oil tank
Secondary Containment is required for what?
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:
