Arizona Underground Storage Tank Operator Exam (Class A) COMPLETE
PRACTICE EXAM – 200 QUESTIONS & VERIFIED SOLUTIONS WITH RATIONALE
Latest Update 2026 | Based on ADEQ Regulations & EPA 40 CFR Part 280
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QUESTION 1
According to Arizona regulations, the Class A and Class B operator certification
must be renewed every:
A. 2 years
B. 3 years
C. 5 years
D. 10 years
Correct Answer: B
Rationale: In Arizona, UST operator training is valid for up to 3 years unless
retraining is required earlier by ADEQ in response to non-compliance . While some
states like Michigan require 5-year renewal, Arizona mandates a 3-year renewal
cycle per Arizona State Legislature Title 49, Chapter 6, Article 5 .
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QUESTION 2
,What is the minimum passing score required for the Arizona Class A/B UST
Operator final exam?
A. 70%
B. 75%
C. 80%
D. 85%
Correct Answer: C
Rationale: The Arizona Class A/B UST Operator training final exam requires a
minimum passing score of 80% . Students must answer correctly at least 80 of 100
questions to successfully complete the certification .
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QUESTION 3
A Class A operator shall maintain the records of UST site inspections for a
minimum of:
A. 1 year
B. 2 years
C. 3 years
D. 5 years
,Correct Answer: C
Rationale: Class A operators are required to maintain UST site inspection records
for a minimum of 3 years . This recordkeeping requirement ensures
documentation is available for compliance verification during ADEQ inspections.
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QUESTION 4
New owners of an existing UST system shall register the UST system with ADEQ
within what period from the date of ownership?
A. 15 days
B. 30 days
C. 45 days
D. 60 days
Correct Answer: B
Rationale: New owners of existing UST systems must register the system with
ADEQ within 30 days from the date of acquiring ownership . This ensures accurate
recordkeeping and proper regulatory oversight of all UST facilities.
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, QUESTION 5
UST systems with cathodic protection should be inspected for proper operation by
a qualified cathodic protection tester on what schedule?
A. Every 6 months
B. Annually
C. Every 3 years
D. Every 5 years
Correct Answer: C
Rationale: UST systems with cathodic protection require inspection by a qualified
cathodic protection tester every 3 years . This regular testing ensures corrosion
protection systems remain functional and effective.
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QUESTION 6
UST systems with impressed current cathodic protection systems must be
inspected at a minimum of:
A. Every 30 days
B. Every 60 days
PRACTICE EXAM – 200 QUESTIONS & VERIFIED SOLUTIONS WITH RATIONALE
Latest Update 2026 | Based on ADEQ Regulations & EPA 40 CFR Part 280
---
QUESTION 1
According to Arizona regulations, the Class A and Class B operator certification
must be renewed every:
A. 2 years
B. 3 years
C. 5 years
D. 10 years
Correct Answer: B
Rationale: In Arizona, UST operator training is valid for up to 3 years unless
retraining is required earlier by ADEQ in response to non-compliance . While some
states like Michigan require 5-year renewal, Arizona mandates a 3-year renewal
cycle per Arizona State Legislature Title 49, Chapter 6, Article 5 .
---
QUESTION 2
,What is the minimum passing score required for the Arizona Class A/B UST
Operator final exam?
A. 70%
B. 75%
C. 80%
D. 85%
Correct Answer: C
Rationale: The Arizona Class A/B UST Operator training final exam requires a
minimum passing score of 80% . Students must answer correctly at least 80 of 100
questions to successfully complete the certification .
---
QUESTION 3
A Class A operator shall maintain the records of UST site inspections for a
minimum of:
A. 1 year
B. 2 years
C. 3 years
D. 5 years
,Correct Answer: C
Rationale: Class A operators are required to maintain UST site inspection records
for a minimum of 3 years . This recordkeeping requirement ensures
documentation is available for compliance verification during ADEQ inspections.
---
QUESTION 4
New owners of an existing UST system shall register the UST system with ADEQ
within what period from the date of ownership?
A. 15 days
B. 30 days
C. 45 days
D. 60 days
Correct Answer: B
Rationale: New owners of existing UST systems must register the system with
ADEQ within 30 days from the date of acquiring ownership . This ensures accurate
recordkeeping and proper regulatory oversight of all UST facilities.
---
, QUESTION 5
UST systems with cathodic protection should be inspected for proper operation by
a qualified cathodic protection tester on what schedule?
A. Every 6 months
B. Annually
C. Every 3 years
D. Every 5 years
Correct Answer: C
Rationale: UST systems with cathodic protection require inspection by a qualified
cathodic protection tester every 3 years . This regular testing ensures corrosion
protection systems remain functional and effective.
---
QUESTION 6
UST systems with impressed current cathodic protection systems must be
inspected at a minimum of:
A. Every 30 days
B. Every 60 days
