Class A Operator UST Exam
Questions and Answers 100% Pass
Is this statement true or false? Fiberglass and flexible plastic piping do not need to have cathodic
protection. - ✔✔False.
Cathodic protection - ✔✔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. - ✔✔2
How long do owners and operators have to report a release to the implementing agency? - ✔✔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? - ✔✔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. - ✔✔True
True or False?
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, 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. -
✔✔True
True or False?
Manual tank gauging can be used to meet the release detection monitoring requirements for any size of
tank. - ✔✔False
True or False?
Owners and operators may cancel a financial responsibility mechanism at any time. - ✔✔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. - ✔✔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. - ✔✔True
True or false?
Septic tanks are regulated by the 40 CFR part 280. - ✔✔False
Owners and operators who switch from E10 to E15 have 30 days AFTER switching to notify the
implementing agency. - ✔✔False
They have 30 days BEFORE
Which of the following substances if stored in an
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Questions and Answers 100% Pass
Is this statement true or false? Fiberglass and flexible plastic piping do not need to have cathodic
protection. - ✔✔False.
Cathodic protection - ✔✔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. - ✔✔2
How long do owners and operators have to report a release to the implementing agency? - ✔✔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? - ✔✔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. - ✔✔True
True or False?
EMILY CHARLENE © 2025, ALL RIGHTS RESERVED 1
, 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. -
✔✔True
True or False?
Manual tank gauging can be used to meet the release detection monitoring requirements for any size of
tank. - ✔✔False
True or False?
Owners and operators may cancel a financial responsibility mechanism at any time. - ✔✔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. - ✔✔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. - ✔✔True
True or false?
Septic tanks are regulated by the 40 CFR part 280. - ✔✔False
Owners and operators who switch from E10 to E15 have 30 days AFTER switching to notify the
implementing agency. - ✔✔False
They have 30 days BEFORE
Which of the following substances if stored in an
EMILY CHARLENE © 2025, ALL RIGHTS RESERVED 2
