CLASS A/B OPERATOR FOR UNDERGROUND STORAGE TANK EXAM WITH COMPLETE ANSWERS| 2025
A Class A operator shall maintain the records of UST site inspections for a *minimum*
of: - ✔✔3 years
A Class B operator shall not be responsible for more than the following facilities: - ✔✔45
facilities
A leak should be suspected in 1,560 gallon tank if the variation between the beginning
and ending manual tank gauging liquid level measurements exceeds the weekly
standard of X gallons. X is: - ✔✔26 gallons
A manual tank gauge stick must be marked to the nearest: - ✔✔1/8 inch
A spill catchment basin or spill bucket is simply a bucket used to dispose of oil-
absorbent materials and clean up materials used after a spill has occurred. - ✔✔False
A suspected release must be confirmed to the DEQ/LARA within: - ✔✔7 days
All spills and overfills must be cleaned up.... - ✔✔Immediately
An automatic tank gauge must be able to detect a leak of X gallons per hour. X is: -
✔✔0.2 gallons per hour
An overfill alarm is not capable of shutting off the flow of product during fuel delivery. -
✔✔True
An overfill alarm will alert operators and delivery personnel when a UST is _______ full
or within one minuts of being overfilled. - ✔✔90%
An owner/operator must leave vent lines open and functioning if a UST remains in
temporary clsure for _______ months or more. - ✔✔3
As of 1998, spill buckets have been required for all UST/AST systems that recieve
deliveries of more than _________ gallons at a time. - ✔✔25
Automatic line leak detector may be used only if the method detects X gallons per hour
at 10 pounds per square inch line pressure within one hour. X is: - ✔✔3 gallons per
hour
, Automatic line leak detectors must be able to detect a leak of at least X gallons per hour
at a line pressure of 10 psi witin one hour. X is: - ✔✔3 gallons per hour
Can an owner use pollution liability insurance as a means of financial responsibility? -
✔✔Yes
Check if the following statement is true or false: "A third party evaluation of a statistical
inventory reconciliation is good for any type of tank and product." - ✔✔False
Class A Operators must take and pass the ICC Class A Operator Exam every _______.
- ✔✔5 years
Class C Operators should know: - ✔✔How to respond to emergencies at the facility
Confirmed releases must be reported to LARA...... - ✔✔Within 24 hours of discovery
Federal regulations require owners of all USTs to notify the state UST program office
within ________- days if bringing that UST into use. - ✔✔30 days
How often must Class B Operators conduct a site inspection of the facility to determine
compliance? - ✔✔Quarterly
How often must tank linings be inspected? - ✔✔Every 5 years
How should you dispose of used clean up materias? - ✔✔Place them in a sealable
bucket, then call your emergency response contractor to dispose of them
If a facility has been determined by the DEQ inspector to be out of compliance with the
significant operational compliance requirements, the DEQ shall retrain: - ✔✔The class A
operator of the facility
If an owner/operator identifies a reportable release from a storage tank, he or she must
do what? - ✔✔Submit proof of financial responsibility to t he state UST program office
within 30 days
If LARA determines that a UST system is out of compliance with state and federal
regualtions, the __________ for that UST system must. be retrained. - ✔✔Class A
Operator
If using inventory control, you should measure the product in your tank _______. -
✔✔Every day
If you have 100 or fewer tanks, financial responsibility is required in the aggregate the
amount of: - ✔✔$1 Million
A Class A operator shall maintain the records of UST site inspections for a *minimum*
of: - ✔✔3 years
A Class B operator shall not be responsible for more than the following facilities: - ✔✔45
facilities
A leak should be suspected in 1,560 gallon tank if the variation between the beginning
and ending manual tank gauging liquid level measurements exceeds the weekly
standard of X gallons. X is: - ✔✔26 gallons
A manual tank gauge stick must be marked to the nearest: - ✔✔1/8 inch
A spill catchment basin or spill bucket is simply a bucket used to dispose of oil-
absorbent materials and clean up materials used after a spill has occurred. - ✔✔False
A suspected release must be confirmed to the DEQ/LARA within: - ✔✔7 days
All spills and overfills must be cleaned up.... - ✔✔Immediately
An automatic tank gauge must be able to detect a leak of X gallons per hour. X is: -
✔✔0.2 gallons per hour
An overfill alarm is not capable of shutting off the flow of product during fuel delivery. -
✔✔True
An overfill alarm will alert operators and delivery personnel when a UST is _______ full
or within one minuts of being overfilled. - ✔✔90%
An owner/operator must leave vent lines open and functioning if a UST remains in
temporary clsure for _______ months or more. - ✔✔3
As of 1998, spill buckets have been required for all UST/AST systems that recieve
deliveries of more than _________ gallons at a time. - ✔✔25
Automatic line leak detector may be used only if the method detects X gallons per hour
at 10 pounds per square inch line pressure within one hour. X is: - ✔✔3 gallons per
hour
, Automatic line leak detectors must be able to detect a leak of at least X gallons per hour
at a line pressure of 10 psi witin one hour. X is: - ✔✔3 gallons per hour
Can an owner use pollution liability insurance as a means of financial responsibility? -
✔✔Yes
Check if the following statement is true or false: "A third party evaluation of a statistical
inventory reconciliation is good for any type of tank and product." - ✔✔False
Class A Operators must take and pass the ICC Class A Operator Exam every _______.
- ✔✔5 years
Class C Operators should know: - ✔✔How to respond to emergencies at the facility
Confirmed releases must be reported to LARA...... - ✔✔Within 24 hours of discovery
Federal regulations require owners of all USTs to notify the state UST program office
within ________- days if bringing that UST into use. - ✔✔30 days
How often must Class B Operators conduct a site inspection of the facility to determine
compliance? - ✔✔Quarterly
How often must tank linings be inspected? - ✔✔Every 5 years
How should you dispose of used clean up materias? - ✔✔Place them in a sealable
bucket, then call your emergency response contractor to dispose of them
If a facility has been determined by the DEQ inspector to be out of compliance with the
significant operational compliance requirements, the DEQ shall retrain: - ✔✔The class A
operator of the facility
If an owner/operator identifies a reportable release from a storage tank, he or she must
do what? - ✔✔Submit proof of financial responsibility to t he state UST program office
within 30 days
If LARA determines that a UST system is out of compliance with state and federal
regualtions, the __________ for that UST system must. be retrained. - ✔✔Class A
Operator
If using inventory control, you should measure the product in your tank _______. -
✔✔Every day
If you have 100 or fewer tanks, financial responsibility is required in the aggregate the
amount of: - ✔✔$1 Million
