NAVY 3-M · WORKCENTER SUPERVISOR · PQS 303
3M 303 WORKCENTER SUPERVISOR
A+
STUDY GUIDE
2026/2027
Official-style practice examination aligned to NAVSEAINST 4790.8 series and NAVEDTRA 43241 PQS
Watchstation 303
A+ 5 100%
QUESTIONS VERIFIED EXAM DOMAINS COVERED RATIONALES INCLUDED
CATEGORIES
■ 1. Organization, Roles & Responsibilities
■ 2. Planned Maintenance System (PMS), MRC, MIP, LOEP & Periodicity
■ 3. SKED Scheduling, Accountability & Inactive Equipment Maintenance
■ 4. Maintenance Data System (MDS), CSMP, OMMS-NG & Documentation
■ 5. Tag-Out Procedures, Safety, Feedback Reports & HAZMAT
Passing Score: 80% · 1 mark per question · Application/Analysis level
STUVIAACTUALEXAM
, SECTION 1 — Organization, Roles & Responsibilities
Q1. A newly assigned Work Center Supervisor reviews the command 3-M organization chart. The individual who holds
overall responsibility for ensuring maintenance is accomplished in accordance with the 3-M system is the:
A. Executive Officer acting as 3-M System Manager
B. 3-M System Coordinator
C. Commanding Officer
D. Department Head
Correct Answer: C
Rationale: Per NAVSEAINST 4790.8 series, the Commanding Officer retains overall responsibility for the ship’s 3-M system. The XO
is the 3-M System Manager and the 3MC is the functional manager, but ultimate accountability rests with the CO.
Q2. During a departmental training session the Division Officer asks who is responsible to the Division Officer via the
LCPO/LPO for the effective operation of the 3-M system within the work center. The correct answer is the:
A. Work Center Supervisor
B. Maintenance Person who is senior
C. Repair Parts Petty Officer
D. Departmental 3-M Assistant
Correct Answer: A
Rationale: The Work Center Supervisor is specifically charged with responsibility to the Division Officer (via LCPO/LPO) for effective
3-M operation inside that work center. This responsibility cannot be delegated.
Q3. The 3-M System Coordinator must be assigned in writing as a primary duty. Which secondary NEC is associated
with this billet?
A. 9502
B. 9517
C. 9580
D. 9600
Correct Answer: B
Rationale: NAVSEAINST 4790.8 identifies NEC 9517 as the secondary NEC for the 3-M System Coordinator. The billet is a primary
duty assignment for an officer, CPO, or PO1 holding that NEC.
Q4. A Division LCPO is reviewing qualification requirements. The Division LCPO/LPO must be 3-M PQS qualified to
which level?
A. Division Officer
B. Work Center Supervisor
C. Maintenance Person only
D. Department Head
Correct Answer: A
Rationale: Policy requires the Division LCPO/LPO to be qualified through the Division Officer level of the 3-M PQS. This ensures
they can properly supervise the WCS and review schedules.
Q5. The Department Head is preparing to finalize the quarterly 3-M schedule. Who holds final approval authority for
that schedule?
A. Department Head
B. Executive Officer
C. 3-M System Coordinator
D. Division Officer
Correct Answer: A
Rationale: The Department Head is responsible for final approval of the departmental quarterly schedule after review by the LCPO,
Division Officer, and 3MC as required by the instruction.
STUVIAACTUALEXAM | Page 2
, Q6. A Sailor discovers that a maintenance requirement on an MRC is unclear and may create a hazardous condition if
performed as written. Who must promptly submit a PMS Feedback Report?
A. The Maintenance Person who first noticed the issue
B. The 3-M System Coordinator
C. The Division Officer
D. The Work Center Supervisor
Correct Answer: D
Rationale: The Work Center Supervisor is required to review MRCs and submit a PMS FBR whenever requirements are not fully
understood, errors exist, or performance would create a hazardous condition.
Q7. The command’s 3-M System Manager is the individual who oversees policy implementation across all
departments. Which officer fills this role?
A. Commanding Officer
B. 3-M System Coordinator
C. Operations Officer
D. Executive Officer
Correct Answer: D
Rationale: The Executive Officer is designated the ship’s 3-M System Manager and is directly responsible to the CO for overall
system effectiveness.
Q8. Departmental 3-M Assistants must be PQS qualified to which watchstation level?
A. Work Center Supervisor (303)
B. 3-M Coordinator (307)
C. Division Officer (304)
D. Departmental 3-M Assistant (305)
Correct Answer: D
Rationale: The Departmental 3-M Assistant is required to complete PQS watchstation 305. This qualification enables them to assist
the Department Head in 3-M administration.
Q9. A new Work Center Supervisor has just been designated in writing. Which of the following is a non-delegable
responsibility of that WCS?
A. Signing every individual MRC completion entry personally
B. Performing every spot-check required by the TYCOM
C. Effective operation of the 3-M system within the work center
D. Authorizing all tag-outs for the department
Correct Answer: C
Rationale: The responsibility for effective 3-M operation inside the work center rests solely with the WCS and cannot be delegated to
subordinate maintenance personnel.
Q10. The Division Officer ensures that all work-center weekly schedules are updated at what minimum frequency?
A. Weekly after the 13-week close-out
B. Only when a force revision is received
C. Daily
D. Bi-weekly prior to the Department Head review
Correct Answer: C
Rationale: Instruction requires the Division Officer to ensure weekly schedules are updated daily so that status remains current and
accurate for supervisory review.
STUVIAACTUALEXAM | Page 3
3M 303 WORKCENTER SUPERVISOR
A+
STUDY GUIDE
2026/2027
Official-style practice examination aligned to NAVSEAINST 4790.8 series and NAVEDTRA 43241 PQS
Watchstation 303
A+ 5 100%
QUESTIONS VERIFIED EXAM DOMAINS COVERED RATIONALES INCLUDED
CATEGORIES
■ 1. Organization, Roles & Responsibilities
■ 2. Planned Maintenance System (PMS), MRC, MIP, LOEP & Periodicity
■ 3. SKED Scheduling, Accountability & Inactive Equipment Maintenance
■ 4. Maintenance Data System (MDS), CSMP, OMMS-NG & Documentation
■ 5. Tag-Out Procedures, Safety, Feedback Reports & HAZMAT
Passing Score: 80% · 1 mark per question · Application/Analysis level
STUVIAACTUALEXAM
, SECTION 1 — Organization, Roles & Responsibilities
Q1. A newly assigned Work Center Supervisor reviews the command 3-M organization chart. The individual who holds
overall responsibility for ensuring maintenance is accomplished in accordance with the 3-M system is the:
A. Executive Officer acting as 3-M System Manager
B. 3-M System Coordinator
C. Commanding Officer
D. Department Head
Correct Answer: C
Rationale: Per NAVSEAINST 4790.8 series, the Commanding Officer retains overall responsibility for the ship’s 3-M system. The XO
is the 3-M System Manager and the 3MC is the functional manager, but ultimate accountability rests with the CO.
Q2. During a departmental training session the Division Officer asks who is responsible to the Division Officer via the
LCPO/LPO for the effective operation of the 3-M system within the work center. The correct answer is the:
A. Work Center Supervisor
B. Maintenance Person who is senior
C. Repair Parts Petty Officer
D. Departmental 3-M Assistant
Correct Answer: A
Rationale: The Work Center Supervisor is specifically charged with responsibility to the Division Officer (via LCPO/LPO) for effective
3-M operation inside that work center. This responsibility cannot be delegated.
Q3. The 3-M System Coordinator must be assigned in writing as a primary duty. Which secondary NEC is associated
with this billet?
A. 9502
B. 9517
C. 9580
D. 9600
Correct Answer: B
Rationale: NAVSEAINST 4790.8 identifies NEC 9517 as the secondary NEC for the 3-M System Coordinator. The billet is a primary
duty assignment for an officer, CPO, or PO1 holding that NEC.
Q4. A Division LCPO is reviewing qualification requirements. The Division LCPO/LPO must be 3-M PQS qualified to
which level?
A. Division Officer
B. Work Center Supervisor
C. Maintenance Person only
D. Department Head
Correct Answer: A
Rationale: Policy requires the Division LCPO/LPO to be qualified through the Division Officer level of the 3-M PQS. This ensures
they can properly supervise the WCS and review schedules.
Q5. The Department Head is preparing to finalize the quarterly 3-M schedule. Who holds final approval authority for
that schedule?
A. Department Head
B. Executive Officer
C. 3-M System Coordinator
D. Division Officer
Correct Answer: A
Rationale: The Department Head is responsible for final approval of the departmental quarterly schedule after review by the LCPO,
Division Officer, and 3MC as required by the instruction.
STUVIAACTUALEXAM | Page 2
, Q6. A Sailor discovers that a maintenance requirement on an MRC is unclear and may create a hazardous condition if
performed as written. Who must promptly submit a PMS Feedback Report?
A. The Maintenance Person who first noticed the issue
B. The 3-M System Coordinator
C. The Division Officer
D. The Work Center Supervisor
Correct Answer: D
Rationale: The Work Center Supervisor is required to review MRCs and submit a PMS FBR whenever requirements are not fully
understood, errors exist, or performance would create a hazardous condition.
Q7. The command’s 3-M System Manager is the individual who oversees policy implementation across all
departments. Which officer fills this role?
A. Commanding Officer
B. 3-M System Coordinator
C. Operations Officer
D. Executive Officer
Correct Answer: D
Rationale: The Executive Officer is designated the ship’s 3-M System Manager and is directly responsible to the CO for overall
system effectiveness.
Q8. Departmental 3-M Assistants must be PQS qualified to which watchstation level?
A. Work Center Supervisor (303)
B. 3-M Coordinator (307)
C. Division Officer (304)
D. Departmental 3-M Assistant (305)
Correct Answer: D
Rationale: The Departmental 3-M Assistant is required to complete PQS watchstation 305. This qualification enables them to assist
the Department Head in 3-M administration.
Q9. A new Work Center Supervisor has just been designated in writing. Which of the following is a non-delegable
responsibility of that WCS?
A. Signing every individual MRC completion entry personally
B. Performing every spot-check required by the TYCOM
C. Effective operation of the 3-M system within the work center
D. Authorizing all tag-outs for the department
Correct Answer: C
Rationale: The responsibility for effective 3-M operation inside the work center rests solely with the WCS and cannot be delegated to
subordinate maintenance personnel.
Q10. The Division Officer ensures that all work-center weekly schedules are updated at what minimum frequency?
A. Weekly after the 13-week close-out
B. Only when a force revision is received
C. Daily
D. Bi-weekly prior to the Department Head review
Correct Answer: C
Rationale: Instruction requires the Division Officer to ensure weekly schedules are updated daily so that status remains current and
accurate for supervisory review.
STUVIAACTUALEXAM | Page 3
