[GMPLC] Georgia Master Plumber License
Class I and II IFGC and IPCs Certification
Exam Preparation
**Question 1.** Which of the following best defines the primary distinction between a Georgia
Master Plumber Class I and Class II license?
A) Class I permits only residential work, Class II permits commercial work
B) Class I allows installation of water‑supply and sanitary systems, Class II is limited to repair and
maintenance
C) Class I requires a qualifying agent, Class II does not
D) Class I permits work on fuel‑gas piping, Class II does not
**Answer:** B
**Explanation:** Class I licensees may design, install, alter, and repair water‑supply, sanitary,
and storm drainage systems, whereas Class II licensees are restricted to repair, maintenance,
and limited installation work.
**Question 2.** Under Georgia’s Underground Facility Protection Act (GUFPA), a plumber must
obtain a call‑before‑you‑dig notice from which organization before excavating?
A) EPA
B) Georgia 811
C) OSHA
D) Georgia State Board of Plumbing
**Answer:** B
**Explanation:** Georgia 811 is the statewide “call‑before‑you‑dig” service that coordinates
with utility owners to locate underground facilities before excavation.
**Question 3.** Which Georgia amendment modifies the default pipe‑size tables of the 2021
IPC for residential water distribution?
A) Georgia Residential Water Amendment (GRWA)
B) Georgia Water Supply Modification (GWSM)
, [GMPLC] Georgia Master Plumber License
Class I and II IFGC and IPCs Certification
Exam Preparation
C) Georgia State Plumbing Amendment (GSPA)
D) Georgia Fixture Unit Adjustment (GFUA)
**Answer:** C
**Explanation:** The Georgia State Plumbing Amendment (GSPA) revises the IPC pipe‑size
tables to reflect local water‑pressure and fixture‑unit calculations.
**Question 4.** The ADA requires a minimum clear floor space of what dimension for a
water‑closet (toilet) in a public restroom?
A) 30 in × 48 in
B) 36 in × 48 in
C) 32 in × 60 in
D) 48 in × 60 in
**Answer:** B
**Explanation:** ADA standards specify a 36‑inch by 48‑inch clear floor space to allow
wheelchair maneuverability.
**Question 5.** Which of the following is NOT a required element in a plumbing contract under
Georgia law?
A) Scope of work description
B) Contractor’s liability insurance certificate
C) Estimated project start and completion dates
D) Contractor’s personal Social Security number
**Answer:** D
**Explanation:** Personal SSNs are not required; the contract must contain scope, insurance,
and schedule information.
, [GMPLC] Georgia Master Plumber License
Class I and II IFGC and IPCs Certification
Exam Preparation
**Question 6.** A Georgia plumber must file a mechanics lien within how many days after the
last furnishing of labor or materials?
A) 30 days
B) 45 days
C) 60 days
D) 90 days
**Answer:** B
**Explanation:** Georgia Code § 13‑6‑7 requires filing a lien within 45 days of the last
furnishing of labor or materials.
**Question 7.** OSHA 29 CFR 1926.652 addresses which of the following construction safety
topics?
A) Electrical wiring standards
B) Trenching and excavation safety
C) Fall protection from heights
D) Hazard communication
**Answer:** B
**Explanation:** 1926.652 specifically covers safety requirements for trenching, excavation,
and shielding.
**Question 8.** According to the 2026 Georgia low‑flow mandate, the maximum flow rate for a
residential lavatory faucet is:
A) 1.5 gpm
B) 1.2 gpm
, [GMPLC] Georgia Master Plumber License
Class I and II IFGC and IPCs Certification
Exam Preparation
C) 2.0 gpm
D) 2.5 gpm
**Answer:** B
**Explanation:** The 2026 mandate limits residential lavatory faucets to 1.2 gallons per minute
to conserve water.
**Question 9.** When sizing a grease interceptor for a commercial kitchen, which factor is the
primary determinant?
A) Number of sinks
B) Total annual food waste volume
C) Flow rate of the largest fixture in the system
D) Daily grease‑laden flow (gallons per minute) from the dish‑washing equipment
**Answer:** D
**Explanation:** Grease interceptors are sized based on the peak grease‑laden flow from
dish‑washing equipment, expressed in GPM.
**Question 10.** Which material is prohibited for the pressure‑rated portion of a fuel‑gas
distribution system in Georgia?
A) Black steel
B) Corrugated stainless steel tubing (CSST)
C) Copper Type M
D) Polypropylene (PP)
**Answer:** D
**Explanation:** Polypropylene is not approved for fuel‑gas pressure‑rated piping; only steel,
CSST, and copper Type M are allowed.
Class I and II IFGC and IPCs Certification
Exam Preparation
**Question 1.** Which of the following best defines the primary distinction between a Georgia
Master Plumber Class I and Class II license?
A) Class I permits only residential work, Class II permits commercial work
B) Class I allows installation of water‑supply and sanitary systems, Class II is limited to repair and
maintenance
C) Class I requires a qualifying agent, Class II does not
D) Class I permits work on fuel‑gas piping, Class II does not
**Answer:** B
**Explanation:** Class I licensees may design, install, alter, and repair water‑supply, sanitary,
and storm drainage systems, whereas Class II licensees are restricted to repair, maintenance,
and limited installation work.
**Question 2.** Under Georgia’s Underground Facility Protection Act (GUFPA), a plumber must
obtain a call‑before‑you‑dig notice from which organization before excavating?
A) EPA
B) Georgia 811
C) OSHA
D) Georgia State Board of Plumbing
**Answer:** B
**Explanation:** Georgia 811 is the statewide “call‑before‑you‑dig” service that coordinates
with utility owners to locate underground facilities before excavation.
**Question 3.** Which Georgia amendment modifies the default pipe‑size tables of the 2021
IPC for residential water distribution?
A) Georgia Residential Water Amendment (GRWA)
B) Georgia Water Supply Modification (GWSM)
, [GMPLC] Georgia Master Plumber License
Class I and II IFGC and IPCs Certification
Exam Preparation
C) Georgia State Plumbing Amendment (GSPA)
D) Georgia Fixture Unit Adjustment (GFUA)
**Answer:** C
**Explanation:** The Georgia State Plumbing Amendment (GSPA) revises the IPC pipe‑size
tables to reflect local water‑pressure and fixture‑unit calculations.
**Question 4.** The ADA requires a minimum clear floor space of what dimension for a
water‑closet (toilet) in a public restroom?
A) 30 in × 48 in
B) 36 in × 48 in
C) 32 in × 60 in
D) 48 in × 60 in
**Answer:** B
**Explanation:** ADA standards specify a 36‑inch by 48‑inch clear floor space to allow
wheelchair maneuverability.
**Question 5.** Which of the following is NOT a required element in a plumbing contract under
Georgia law?
A) Scope of work description
B) Contractor’s liability insurance certificate
C) Estimated project start and completion dates
D) Contractor’s personal Social Security number
**Answer:** D
**Explanation:** Personal SSNs are not required; the contract must contain scope, insurance,
and schedule information.
, [GMPLC] Georgia Master Plumber License
Class I and II IFGC and IPCs Certification
Exam Preparation
**Question 6.** A Georgia plumber must file a mechanics lien within how many days after the
last furnishing of labor or materials?
A) 30 days
B) 45 days
C) 60 days
D) 90 days
**Answer:** B
**Explanation:** Georgia Code § 13‑6‑7 requires filing a lien within 45 days of the last
furnishing of labor or materials.
**Question 7.** OSHA 29 CFR 1926.652 addresses which of the following construction safety
topics?
A) Electrical wiring standards
B) Trenching and excavation safety
C) Fall protection from heights
D) Hazard communication
**Answer:** B
**Explanation:** 1926.652 specifically covers safety requirements for trenching, excavation,
and shielding.
**Question 8.** According to the 2026 Georgia low‑flow mandate, the maximum flow rate for a
residential lavatory faucet is:
A) 1.5 gpm
B) 1.2 gpm
, [GMPLC] Georgia Master Plumber License
Class I and II IFGC and IPCs Certification
Exam Preparation
C) 2.0 gpm
D) 2.5 gpm
**Answer:** B
**Explanation:** The 2026 mandate limits residential lavatory faucets to 1.2 gallons per minute
to conserve water.
**Question 9.** When sizing a grease interceptor for a commercial kitchen, which factor is the
primary determinant?
A) Number of sinks
B) Total annual food waste volume
C) Flow rate of the largest fixture in the system
D) Daily grease‑laden flow (gallons per minute) from the dish‑washing equipment
**Answer:** D
**Explanation:** Grease interceptors are sized based on the peak grease‑laden flow from
dish‑washing equipment, expressed in GPM.
**Question 10.** Which material is prohibited for the pressure‑rated portion of a fuel‑gas
distribution system in Georgia?
A) Black steel
B) Corrugated stainless steel tubing (CSST)
C) Copper Type M
D) Polypropylene (PP)
**Answer:** D
**Explanation:** Polypropylene is not approved for fuel‑gas pressure‑rated piping; only steel,
CSST, and copper Type M are allowed.
