Maine Journeyman Plumbing Q2 {Gas Piping
& Fuel Gas Code (Gasfitting)} 2026-2027
Comprehensive Frequently Tested Questions
With Verified Multiple Choice and Conceptual
Actual 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
1. Non-metallic gas piping installed underground outdoors must transition
below grade to a:
A. Steel coupling
B. Dielectric fitting
C. Anodeless riser
D. Flexible connector
Correct Answer: C
2. Under MGL Chapter 142, propane is referred to as:
A. Liquefied natural gas
B. Compressed petroleum gas
C. Undiluted liquefied petroleum
D. Commercial fuel gas
Correct Answer: C
,3. Gas piping systems extending from the service meter outlet to appliance
shutoff valves must withstand a pressure test of not less than:
A. 3 inches of mercury
B. 6 inches of mercury or 3 PSIG for 10 minutes
C. 10 PSIG for 5 minutes
D. 15 PSIG for 30 minutes
Correct Answer: B
4. Test pressure for gas piping must be measured with a device calibrated in
increments of no more than:
A. 1.0 PSIG
B. 0.5 PSIG
C. 0.25 PSIG
D. 0.1 PSIG
Correct Answer: D
5. Unless an emergency exists, gas piping systems shall not be placed into
service until they are tested in the presence of the inspector and:
A. The gas supplier
B. The building owner
C. Approved
D. The fire department
Correct Answer: C
6. A 2-inch gas pipe run horizontally for 142.5 feet would require a total pitch of
approximately:
,A. 1¾ inches
B. 2 inches
C. 2⅜ inches
D. 3 inches
Correct Answer: C
7. The required duration of the gas piping pressure test is a minimum of:
A. 5 minutes
B. 8 minutes
C. 10 minutes
D. 15 minutes
Correct Answer: C
8. Which test medium is prohibited when testing gas piping systems?
A. Nitrogen
B. Air
C. Carbon dioxide
D. Oxygen
Correct Answer: D
9. During the process of turning gas into a new system, the entire system shall
be:
A. Purged only
B. Pressurized only
C. Inspected
D. Painted
Correct Answer: C
, 10. Prior to cutting into a gas main, what must be done?
A. Shut off downstream appliances
B. Pressure purge the contents of the main to an outside location
C. Increase test pressure
D. Install a bypass valve
Correct Answer: B
11. The approximate weight of a 2-inch steel pipe is:
A. 2 lbs per foot
B. 3 lbs per foot
C. 3½ lbs per foot
D. 5 lbs per foot
Correct Answer: C
12. The approximate gallon capacity of the interceptor shown is:
A. 800–900 gallons
B. 1000–1100 gallons
C. 1214–1216 gallons
D. 1500 gallons
Correct Answer: C
13. The approximate circumference of a Schedule 40 black steel gas pipe with a
3.5-inch OD is:
A. 9 inches
B. 10 inches
& Fuel Gas Code (Gasfitting)} 2026-2027
Comprehensive Frequently Tested Questions
With Verified Multiple Choice and Conceptual
Actual 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
1. Non-metallic gas piping installed underground outdoors must transition
below grade to a:
A. Steel coupling
B. Dielectric fitting
C. Anodeless riser
D. Flexible connector
Correct Answer: C
2. Under MGL Chapter 142, propane is referred to as:
A. Liquefied natural gas
B. Compressed petroleum gas
C. Undiluted liquefied petroleum
D. Commercial fuel gas
Correct Answer: C
,3. Gas piping systems extending from the service meter outlet to appliance
shutoff valves must withstand a pressure test of not less than:
A. 3 inches of mercury
B. 6 inches of mercury or 3 PSIG for 10 minutes
C. 10 PSIG for 5 minutes
D. 15 PSIG for 30 minutes
Correct Answer: B
4. Test pressure for gas piping must be measured with a device calibrated in
increments of no more than:
A. 1.0 PSIG
B. 0.5 PSIG
C. 0.25 PSIG
D. 0.1 PSIG
Correct Answer: D
5. Unless an emergency exists, gas piping systems shall not be placed into
service until they are tested in the presence of the inspector and:
A. The gas supplier
B. The building owner
C. Approved
D. The fire department
Correct Answer: C
6. A 2-inch gas pipe run horizontally for 142.5 feet would require a total pitch of
approximately:
,A. 1¾ inches
B. 2 inches
C. 2⅜ inches
D. 3 inches
Correct Answer: C
7. The required duration of the gas piping pressure test is a minimum of:
A. 5 minutes
B. 8 minutes
C. 10 minutes
D. 15 minutes
Correct Answer: C
8. Which test medium is prohibited when testing gas piping systems?
A. Nitrogen
B. Air
C. Carbon dioxide
D. Oxygen
Correct Answer: D
9. During the process of turning gas into a new system, the entire system shall
be:
A. Purged only
B. Pressurized only
C. Inspected
D. Painted
Correct Answer: C
, 10. Prior to cutting into a gas main, what must be done?
A. Shut off downstream appliances
B. Pressure purge the contents of the main to an outside location
C. Increase test pressure
D. Install a bypass valve
Correct Answer: B
11. The approximate weight of a 2-inch steel pipe is:
A. 2 lbs per foot
B. 3 lbs per foot
C. 3½ lbs per foot
D. 5 lbs per foot
Correct Answer: C
12. The approximate gallon capacity of the interceptor shown is:
A. 800–900 gallons
B. 1000–1100 gallons
C. 1214–1216 gallons
D. 1500 gallons
Correct Answer: C
13. The approximate circumference of a Schedule 40 black steel gas pipe with a
3.5-inch OD is:
A. 9 inches
B. 10 inches
