Class A Operator UST Exam 2026/2027 –
Practice Questions & Complete Review
Is this statement true or false? Fiberglass and flexible plastic piping do not need to
have cathodic protection. - correct answer-False.
Cathodic protection - correct answer-a technique used to control the corrosion of
a metal surface by making it the cathode of an electrochemical cell. A simple
method of protection connects the metal to be protected to a more easily
corroded "sacrificial metal" to act as the anode.
Fill in the blank to make the statement correct. Owners and Operators must keep
the most recent ___ records of cathodic protection testing. - correct answer-2
How long do owners and operators have to report a release to the implementing
agency? - correct answer-24 Hours
Fill in the blank if the tank was installed on or before April 11, 2016 manual tank
gauging ALONE can be used on tanks containing ________ gallons and meeting
certain diameter requirements? - correct answer-1000 gallons or less.
True or False?
, Tanks from 1001 gallons to 2000 gallons and tanks from 551 and 1000 gallons that
do not meet the specified diameters can temporarily use manual tank gauging
when it is combined with tank tightness testing. - correct answer-True
True or False?
Under UST regulation combining manual tank testing and tank tightness testing
can only be used for 10 years after the tank was installed and may not be used for
any tanks installed after April 11 2016. - correct answer-True
True or False?
Manual tank gauging can be used to meet the release detection monitoring
requirements for any size of tank. - correct answer-False
True or False?
Owners and operators may cancel a financial responsibility mechanism at any
time. - correct answer-False
When can an owner or operator cancel a financial responsibility mechanism? Only
when they have obtained an alternative mechanism; the tank has been
permanently closed or undergoes a change in service; or if corrective action is
required and completed. - correct answer-Only when they have obtained an
alternative mechanism; the tank has been permanently closed or undergoes a
change in service; or if corrective action is required and completed.
True or False?
Owners and operators do not need to maintain financial responsibility once the
UST has been permanently closed. - correct answer-True
Practice Questions & Complete Review
Is this statement true or false? Fiberglass and flexible plastic piping do not need to
have cathodic protection. - correct answer-False.
Cathodic protection - correct answer-a technique used to control the corrosion of
a metal surface by making it the cathode of an electrochemical cell. A simple
method of protection connects the metal to be protected to a more easily
corroded "sacrificial metal" to act as the anode.
Fill in the blank to make the statement correct. Owners and Operators must keep
the most recent ___ records of cathodic protection testing. - correct answer-2
How long do owners and operators have to report a release to the implementing
agency? - correct answer-24 Hours
Fill in the blank if the tank was installed on or before April 11, 2016 manual tank
gauging ALONE can be used on tanks containing ________ gallons and meeting
certain diameter requirements? - correct answer-1000 gallons or less.
True or False?
, Tanks from 1001 gallons to 2000 gallons and tanks from 551 and 1000 gallons that
do not meet the specified diameters can temporarily use manual tank gauging
when it is combined with tank tightness testing. - correct answer-True
True or False?
Under UST regulation combining manual tank testing and tank tightness testing
can only be used for 10 years after the tank was installed and may not be used for
any tanks installed after April 11 2016. - correct answer-True
True or False?
Manual tank gauging can be used to meet the release detection monitoring
requirements for any size of tank. - correct answer-False
True or False?
Owners and operators may cancel a financial responsibility mechanism at any
time. - correct answer-False
When can an owner or operator cancel a financial responsibility mechanism? Only
when they have obtained an alternative mechanism; the tank has been
permanently closed or undergoes a change in service; or if corrective action is
required and completed. - correct answer-Only when they have obtained an
alternative mechanism; the tank has been permanently closed or undergoes a
change in service; or if corrective action is required and completed.
True or False?
Owners and operators do not need to maintain financial responsibility once the
UST has been permanently closed. - correct answer-True
