Class A Operator UST Test Questions With All
Correct Answers
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?
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
UST would cause the UST to be regulated under 40 CFR part 280? Choose all that apply:
-Gasoline with 10% ethanol
-Propane
-Diesel
-Kerosene - gasoline with 10% ethanol, diesel, and kerosene.
How long do owners and operators keep records demonstrating compatibility with
gasoline containing 15% ethanol? - As long as the UST system stores 15% ethanol
True or false?
Only tanks need to be compatible with the regulated substances stored. - False
True or false? Under-dispenser containment used for piping interstitial monitoring does
not have to be tested for tightness once every three years. - False
True or false?
Double walled spill buckets where the space between the walls of the spill bucket is no
longer monitored at least every 30 days must be tested for liquid tightness within -1 year
after monitoring ceases-. - False. within 30 days
How often must overfill prevention equipment be inspected for operability? - Every 3 years
True or false?
Owners and operators must measure for water in the in their tank once a month when
using inventory control combined with tank tightness testing. - True
True or false?
Groundwater and vapor monitoring wells used to meet the release detection requirements
do not have to be secured. - False
True or false?
Groundwater and vapor monitoring may be used on tanks and piping installed on or before
April 11, 2016. - True
Correct Answers
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?
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
UST would cause the UST to be regulated under 40 CFR part 280? Choose all that apply:
-Gasoline with 10% ethanol
-Propane
-Diesel
-Kerosene - gasoline with 10% ethanol, diesel, and kerosene.
How long do owners and operators keep records demonstrating compatibility with
gasoline containing 15% ethanol? - As long as the UST system stores 15% ethanol
True or false?
Only tanks need to be compatible with the regulated substances stored. - False
True or false? Under-dispenser containment used for piping interstitial monitoring does
not have to be tested for tightness once every three years. - False
True or false?
Double walled spill buckets where the space between the walls of the spill bucket is no
longer monitored at least every 30 days must be tested for liquid tightness within -1 year
after monitoring ceases-. - False. within 30 days
How often must overfill prevention equipment be inspected for operability? - Every 3 years
True or false?
Owners and operators must measure for water in the in their tank once a month when
using inventory control combined with tank tightness testing. - True
True or false?
Groundwater and vapor monitoring wells used to meet the release detection requirements
do not have to be secured. - False
True or false?
Groundwater and vapor monitoring may be used on tanks and piping installed on or before
April 11, 2016. - True
