, STUVIA EXAM LIBRARY
EXAMINATION DOCUMENT 2026/2027
Maine Master Plumber Exam - Hydraulics,
Isometrics, Business Law &
Troubleshooting
ME-MP Exam 5 - Hydraulics, Isometrics, Business Law & Troubleshooting
A+ VERIFIED | Expert Verified | Latest Update 2026/2027 | Just Released
, TABLE OF CONTENTS - Exam 5:
Hydraulics, Isometrics, Business Law &
Troubleshooting
Section A: Hydraulics & Isometrics (Q1-Q42)
Section B: Business Law & Estimating (Q43-Q84)
Section C: OSHA & Jobsite Safety (Q85-Q126)
Section D: Troubleshooting & Repair (Q127-Q168)
Section E: Advanced Master Scenarios (Q169-Q210)
, 1. [ME-MP-E5-Q1] Kennebec Plumbing LLC at 88 Harlow St, Bangor, ME 04401 (2024) - Project
with 2 fixtures, 178 GPM demand. Regarding Freeze protection, what is required per Maine
Plumbing Code?
A. Air gap not required for cross-connection - required by code.
B. Correct per Freeze protection: requires proper sizing/installation per Maine amended IPC - 178 units
requires 2-inch minimum with master verification.
C. Use unlisted material to save cost for 178 FTU - violates listing requirements.
D. Size based on old Maine 2009 code only - must use 2021 IPC with amendments.
Rationale: Correct B. In Hydraulics, Isometrics, Business Law & Troubleshooting, Freeze protection governs
installation. Maine 2021 IPC requires listed materials, correct 2/178 sizing, backflow protection, venting. Master
must verify. Example: Kennebec Plumbing LLC scenario shows 178 demand needs calculation per Appendix.
Why wrong: other options violate permit, inspection, material listing, or scope rules. Maine amendments prohibit
AAV in some municipalities, require licensed master for gas testing, and mandate T&P; discharge. This
matches 2026/2027 exam focus.
2. [ME-MP-E5-Q2] Maine Flow Systems at 22 Water St, Augusta, ME 04330 (2024) - Project with
7 fixtures, 167 GPM demand. Regarding Pump curve and head, what is required per Maine
Plumbing Code?
A. Use unlisted material to save cost for 167 FTU - violates listing requirements.
B. Correct per Pump curve and head: requires proper sizing/installation per Maine amended IPC - 167 units
requires 7-inch minimum with master verification.
C. Omit inspection for 7 fixtures - not allowed.
D. Size based on old Maine 2009 code only - must use 2021 IPC with amendments.
Rationale: Correct B. In Hydraulics, Isometrics, Business Law & Troubleshooting, Pump curve and head
governs installation. Maine 2021 IPC requires listed materials, correct 7/167 sizing, backflow protection,
venting. Master must verify. Example: Maine Flow Systems scenario shows 167 demand needs calculation per
Appendix. Why wrong: other options violate permit, inspection, material listing, or scope rules. Maine
amendments prohibit AAV in some municipalities, require licensed master for gas testing, and mandate T&P;
discharge. This matches 2026/2027 exam focus.
3. [ME-MP-E5-Q3] Northern Water Works at 7 Main St, Bar Harbor, ME 04609 (2025) - Project
with 3 fixtures, 96 GPM demand. Regarding Troubleshooting low pressure, what is required
per Maine Plumbing Code?
A. Omit inspection for 3 fixtures - not allowed.
B. Air gap not required for cross-connection - required by code.
C. Correct per Troubleshooting low pressure: requires proper sizing/installation per Maine amended IPC - 96
units requires 3-inch minimum with master verification.
D. Size based on old Maine 2009 code only - must use 2021 IPC with amendments.
Rationale: Correct C. In Hydraulics, Isometrics, Business Law & Troubleshooting, Troubleshooting low
pressure governs installation. Maine 2021 IPC requires listed materials, correct 3/96 sizing, backflow protection,
venting. Master must verify. Example: Northern Water Works scenario shows 96 demand needs calculation per
Appendix. Why wrong: other options violate permit, inspection, material listing, or scope rules. Maine
amendments prohibit AAV in some municipalities, require licensed master for gas testing, and mandate T&P;
discharge. This matches 2026/2027 exam focus.
EXAMINATION DOCUMENT 2026/2027
Maine Master Plumber Exam - Hydraulics,
Isometrics, Business Law &
Troubleshooting
ME-MP Exam 5 - Hydraulics, Isometrics, Business Law & Troubleshooting
A+ VERIFIED | Expert Verified | Latest Update 2026/2027 | Just Released
, TABLE OF CONTENTS - Exam 5:
Hydraulics, Isometrics, Business Law &
Troubleshooting
Section A: Hydraulics & Isometrics (Q1-Q42)
Section B: Business Law & Estimating (Q43-Q84)
Section C: OSHA & Jobsite Safety (Q85-Q126)
Section D: Troubleshooting & Repair (Q127-Q168)
Section E: Advanced Master Scenarios (Q169-Q210)
, 1. [ME-MP-E5-Q1] Kennebec Plumbing LLC at 88 Harlow St, Bangor, ME 04401 (2024) - Project
with 2 fixtures, 178 GPM demand. Regarding Freeze protection, what is required per Maine
Plumbing Code?
A. Air gap not required for cross-connection - required by code.
B. Correct per Freeze protection: requires proper sizing/installation per Maine amended IPC - 178 units
requires 2-inch minimum with master verification.
C. Use unlisted material to save cost for 178 FTU - violates listing requirements.
D. Size based on old Maine 2009 code only - must use 2021 IPC with amendments.
Rationale: Correct B. In Hydraulics, Isometrics, Business Law & Troubleshooting, Freeze protection governs
installation. Maine 2021 IPC requires listed materials, correct 2/178 sizing, backflow protection, venting. Master
must verify. Example: Kennebec Plumbing LLC scenario shows 178 demand needs calculation per Appendix.
Why wrong: other options violate permit, inspection, material listing, or scope rules. Maine amendments prohibit
AAV in some municipalities, require licensed master for gas testing, and mandate T&P; discharge. This
matches 2026/2027 exam focus.
2. [ME-MP-E5-Q2] Maine Flow Systems at 22 Water St, Augusta, ME 04330 (2024) - Project with
7 fixtures, 167 GPM demand. Regarding Pump curve and head, what is required per Maine
Plumbing Code?
A. Use unlisted material to save cost for 167 FTU - violates listing requirements.
B. Correct per Pump curve and head: requires proper sizing/installation per Maine amended IPC - 167 units
requires 7-inch minimum with master verification.
C. Omit inspection for 7 fixtures - not allowed.
D. Size based on old Maine 2009 code only - must use 2021 IPC with amendments.
Rationale: Correct B. In Hydraulics, Isometrics, Business Law & Troubleshooting, Pump curve and head
governs installation. Maine 2021 IPC requires listed materials, correct 7/167 sizing, backflow protection,
venting. Master must verify. Example: Maine Flow Systems scenario shows 167 demand needs calculation per
Appendix. Why wrong: other options violate permit, inspection, material listing, or scope rules. Maine
amendments prohibit AAV in some municipalities, require licensed master for gas testing, and mandate T&P;
discharge. This matches 2026/2027 exam focus.
3. [ME-MP-E5-Q3] Northern Water Works at 7 Main St, Bar Harbor, ME 04609 (2025) - Project
with 3 fixtures, 96 GPM demand. Regarding Troubleshooting low pressure, what is required
per Maine Plumbing Code?
A. Omit inspection for 3 fixtures - not allowed.
B. Air gap not required for cross-connection - required by code.
C. Correct per Troubleshooting low pressure: requires proper sizing/installation per Maine amended IPC - 96
units requires 3-inch minimum with master verification.
D. Size based on old Maine 2009 code only - must use 2021 IPC with amendments.
Rationale: Correct C. In Hydraulics, Isometrics, Business Law & Troubleshooting, Troubleshooting low
pressure governs installation. Maine 2021 IPC requires listed materials, correct 3/96 sizing, backflow protection,
venting. Master must verify. Example: Northern Water Works scenario shows 96 demand needs calculation per
Appendix. Why wrong: other options violate permit, inspection, material listing, or scope rules. Maine
amendments prohibit AAV in some municipalities, require licensed master for gas testing, and mandate T&P;
discharge. This matches 2026/2027 exam focus.
