Maine ME Plant Operator Authority License Exam Prep: Facility Operation
Practice Questions & Answers
This specialized technical preparation guide delivers comprehensive practice questions
and verified answers tailored specifically to the Maine Plant Operator Authority licensing
exam. It provides exhaustive coverage of stationary engineering principles, high-
pressure boiler operations, industrial fluid mechanics, safety piping systems, and state-
specific environmental compliance standards. Maintenance technicians, facility
engineers, and plant operators will master critical thermodynamic calculations,
automated control tracking, and state safety regulations to confidently pass their
proctored municipal or state validation assessment.
Question 1
Which Maine agency oversees the wastewater operator certification program?
A. Maine Department of Labor
B. Maine Department of Environmental Protection
C. Maine Department of Transportation
D. Maine Revenue Services
Correct Answer: B. Maine Department of Environmental Protection.
Rationale: Maine DEP oversees the Wastewater Operator Certification Program.
Question 2
Which organization handles day-to-day administration of Maine's wastewater operator
certification program in partnership with DEP?
A. NEIWPCC
B. EPA Region 1 only
C. Maine Turnpike Authority
D. Maine Emergency Management Agency
Correct Answer: A. NEIWPCC.
,Rationale: NEIWPCC administers the program through its South Portland office in partnership
with Maine DEP.
Question 3
Which Maine wastewater certification classification represents biological treatment at the entry
level?
A. B-1
B. B-5
C. P/C-5
D. SITS-5
Correct Answer: A. B-1.
Rationale: Maine's biological wastewater classifications range from Biological Grade 1 through
Biological Grade 5.
Question 4
Which classification is associated with physical/chemical wastewater treatment in Maine?
A. P/C
B. B/D
C. S/W
D. WTP
Correct Answer: A. P/C.
Rationale: Maine recognizes Physical/Chemical Grades 1 and 2.
Question 5
What does ORC stand for in Maine wastewater operations?
A. Official Regulatory Coordinator
B. Operator in Responsible Charge
C. Operations Review Committee
D. Operator Records Coordinator
Correct Answer: B. Operator in Responsible Charge.
Rationale: The ORC has direct responsibility for successfully managing and supervising
operation of the facility.
,Question 6
For a Maine wastewater plant requiring an ORC, the ORC certification generally must be:
A. Lower than the plant classification
B. Equal to or greater than the plant classification
C. Unrelated to plant classification
D. Based only on age
Correct Answer: B. Equal to or greater than the plant classification.
Rationale: Maine requires the designated ORC to hold certification equal to or greater than the
assigned plant classification, subject to the applicable rules.
Question 7
Which professional may serve as a Maine wastewater ORC without additional operator
certification when the applicable requirements are met?
A. Any laboratory assistant
B. A licensed professional engineer in good standing
C. Any plant visitor
D. Any maintenance employee
Correct Answer: B. A licensed professional engineer in good standing.
Rationale: Maine's program provides an exception for a professional engineer in good standing.
Question 8
Maine wastewater operator examinations currently contain how many questions?
A. 50
B. 75
C. 100
D. 150
Correct Answer: C. 100.
Rationale: Maine DEP states that its wastewater operator exams contain 100 questions.
Question 9
What minimum score is required to pass the Maine wastewater operator examination?
, A. 50%
B. 60%
C. 70%
D. 90%
Correct Answer: C. 70%.
Rationale: Maine requires a minimum passing score of 70%.
Question 10
What is the maximum stated examination time for the Maine wastewater operator CBT?
A. 1 hour
B. 2 hours
C. 3 hours
D. 5 hours
Correct Answer: C. 3 hours.
Rationale: Maine DEP states that wastewater examinations may allow up to three hours.
Question 11
Which educational credential is required for Maine biological wastewater certification grades?
A. High school diploma or GED
B. Doctorate
C. Bachelor's degree only
D. No education requirement
Correct Answer: A. High school diploma or GED.
Rationale: Maine's biological certification requirements state that all grades require a high
school diploma or equivalent.
Question 12
How often must Maine wastewater operator certification generally be renewed?
A. Every year
B. Every two years
C. Every five years
D. Never
Correct Answer: B. Every two years.
Practice Questions & Answers
This specialized technical preparation guide delivers comprehensive practice questions
and verified answers tailored specifically to the Maine Plant Operator Authority licensing
exam. It provides exhaustive coverage of stationary engineering principles, high-
pressure boiler operations, industrial fluid mechanics, safety piping systems, and state-
specific environmental compliance standards. Maintenance technicians, facility
engineers, and plant operators will master critical thermodynamic calculations,
automated control tracking, and state safety regulations to confidently pass their
proctored municipal or state validation assessment.
Question 1
Which Maine agency oversees the wastewater operator certification program?
A. Maine Department of Labor
B. Maine Department of Environmental Protection
C. Maine Department of Transportation
D. Maine Revenue Services
Correct Answer: B. Maine Department of Environmental Protection.
Rationale: Maine DEP oversees the Wastewater Operator Certification Program.
Question 2
Which organization handles day-to-day administration of Maine's wastewater operator
certification program in partnership with DEP?
A. NEIWPCC
B. EPA Region 1 only
C. Maine Turnpike Authority
D. Maine Emergency Management Agency
Correct Answer: A. NEIWPCC.
,Rationale: NEIWPCC administers the program through its South Portland office in partnership
with Maine DEP.
Question 3
Which Maine wastewater certification classification represents biological treatment at the entry
level?
A. B-1
B. B-5
C. P/C-5
D. SITS-5
Correct Answer: A. B-1.
Rationale: Maine's biological wastewater classifications range from Biological Grade 1 through
Biological Grade 5.
Question 4
Which classification is associated with physical/chemical wastewater treatment in Maine?
A. P/C
B. B/D
C. S/W
D. WTP
Correct Answer: A. P/C.
Rationale: Maine recognizes Physical/Chemical Grades 1 and 2.
Question 5
What does ORC stand for in Maine wastewater operations?
A. Official Regulatory Coordinator
B. Operator in Responsible Charge
C. Operations Review Committee
D. Operator Records Coordinator
Correct Answer: B. Operator in Responsible Charge.
Rationale: The ORC has direct responsibility for successfully managing and supervising
operation of the facility.
,Question 6
For a Maine wastewater plant requiring an ORC, the ORC certification generally must be:
A. Lower than the plant classification
B. Equal to or greater than the plant classification
C. Unrelated to plant classification
D. Based only on age
Correct Answer: B. Equal to or greater than the plant classification.
Rationale: Maine requires the designated ORC to hold certification equal to or greater than the
assigned plant classification, subject to the applicable rules.
Question 7
Which professional may serve as a Maine wastewater ORC without additional operator
certification when the applicable requirements are met?
A. Any laboratory assistant
B. A licensed professional engineer in good standing
C. Any plant visitor
D. Any maintenance employee
Correct Answer: B. A licensed professional engineer in good standing.
Rationale: Maine's program provides an exception for a professional engineer in good standing.
Question 8
Maine wastewater operator examinations currently contain how many questions?
A. 50
B. 75
C. 100
D. 150
Correct Answer: C. 100.
Rationale: Maine DEP states that its wastewater operator exams contain 100 questions.
Question 9
What minimum score is required to pass the Maine wastewater operator examination?
, A. 50%
B. 60%
C. 70%
D. 90%
Correct Answer: C. 70%.
Rationale: Maine requires a minimum passing score of 70%.
Question 10
What is the maximum stated examination time for the Maine wastewater operator CBT?
A. 1 hour
B. 2 hours
C. 3 hours
D. 5 hours
Correct Answer: C. 3 hours.
Rationale: Maine DEP states that wastewater examinations may allow up to three hours.
Question 11
Which educational credential is required for Maine biological wastewater certification grades?
A. High school diploma or GED
B. Doctorate
C. Bachelor's degree only
D. No education requirement
Correct Answer: A. High school diploma or GED.
Rationale: Maine's biological certification requirements state that all grades require a high
school diploma or equivalent.
Question 12
How often must Maine wastewater operator certification generally be renewed?
A. Every year
B. Every two years
C. Every five years
D. Never
Correct Answer: B. Every two years.
