Gas Technician G2 Exam (New 2024/ 2025)
Questions and Verified Answers| 100%
Correct| A Grade
Q: Posts protecting piping and tubing entering a building from vehicular damage shall be?
a. clearly marked and identified with yellow paint
b. Be spaced not more than 48" apart
c. Buried not less than 36" below grade
d. Made from 6x6 pressure treated wood
Answer:
Buried not less than 36" below grade
(6.16.15)
Q: The equivalent length of a 2 1/2 NPS forged tee is?
a. 9.25'
b. 12.4'
c. 15.3'
d. 10.3'
Answer:
9.25' (Table A 16)
Q: What is the maximum horizontal spacing of supports for N.P.S. 1 1/4 inch gas pipe?
a. 8'
b. 15'
c. 6'
d. 10'
Answer:
10' (3m) (Table 6.2)
Q: When gas piping enters a building, it must?
a. Enter above grade
,b. Be taped, painted, and sleeved
c. Have a tracer wire
d. Enter below grade
Answer:
Enter above grade (6.15.8)
Q: When sizing a branch line, what is the minimum size of job fabricated welding fittings that
can be used on a NPS 6 gas supply header?
a. 2" NPS
b. 3/4" NPS
c. 3" NPS
d. 1/2" NPS
Answer:
3/4" NPS (6.8.8)
Q: A dirt pockets shall be installed at the bottom of any piping or tubing, on the final drop
serving an appliance other than a(n)
a. Unit Heater
b. Furnace
c. Clothes dryer
d. Boiler
Answer:
Clothes dryer (6.13.1)
Q: Direct-vent wall furnace shall use what maximum length of corrugated metal gas connector?
a. 6 ft.
b. 4 ft.
c. 8 ft.
d. 2 ft.
Answer:
2 ft. (6.21.3(c))
,Q: Every gas hose and gas fitting shall have a minimum working pressure of what.
XV XV XV XV XV XV XV XV XV XV XV XV XV XV
a. 275 PSIG minimum or the setting of the hydrostatic relief valves.
XV XV XV XV XV XV XV XV XV XV
b. 350 PSIG for piping and tubing operating at a container.
XV XV XV XV XV XV XV XV XV
c. 350 PSIG XV
d. 250 PSIG when connected to the outlet of a pump or compressor.
XV XV XV XV XV XV XV XV XV XV XV
Answer:
350 PSIG (6.2.9)
XV XV
Q: What are the requirements for back filling underground piping or tubing?
XV XV XV XV XV XV XV XV XV XV XV
a. It shall not have stones larger than 38 mm
XV XV XV XV XV XV XV XV
b. The fill material shall contain no sharp objects.
XV XV XV XV XV XV XV
c. A trench must be dug 15 inches deep
XV XV XV XV XV XV XV
d. All of the choices
XV XV XV
Answer:
The fill material shall contain no sharp objects (6.15.6)
XV XV XV XV XV XV XV XV
Q: Question 17
XV XV
What is the approximate purging time for NPS 1 that is 40 feet in length?
XV XV XV XV XV XV XV XV XV XV XV XV XV XV
a. 7 Seconds
XV
b. 28 SecondsXV
c. 14 Seconds
XV
d. 43 Seconds
XV
Answer:
28 seconds (Annex H Table H.1)
XV XV XV XV XV
Q: What is the maximum distance a readily accessible manual shut-
XV XV XV XV XV XV XV XV XV XV
off valve may be installed from an appliance?
XV XV XV XV XV XV XV
a. 2 ft. and identified
XV XV XV
b. 10 ft. and identified
XV XV XV
c. 25 ft. and identified
XV XV XV
d. 50 ft. and identified
XV XV XV
Answer:
50 ft. and identified (6.18.2(d))
XV XV XV XV
, Q: What is the minimum unthreaded portion of a piping outlet required when installing a gas
XV XV XV XV XV XV XV XV XV XV XV XV XV XV XV
piping through a floor for a range?
XV XV XV XV XV XV XV
a. 2 Inches XV
b. 6 Inches XV
c. 3 Inches
XV
d. 12 Inches XV
Answer:
2 inches (6.12.2)
XV XV
Q: When a high pressure test is required on a gas piping system, what type of medium wo
XV XV XV XV XV XV XV XV XV XV XV XV XV XV XV XV XV
uld you use to perform this test.
XV XV XV XV XV XV
a. High Pressure gas XV XV
b. Static pressure using gas XV XV XV
c. Low pressure gas XV XV
d. Air or an inert gas
XV XV XV XV
Answer:
Air or an inert gas
XV XV XV XV
Q: Nesting of bushings is permitted Tr
XV XV XV XV XV XV
ue
False
Answer:
False (6.14.2) XV
Q: Underground piping shall be joined or connected by welding, approved mechanical compr
XV XV XV XV XV XV XV XV XV XV XV XV
ession, or press-connect fittings.
XV XV XV
True XV
False
Answer:
True (6.15.2) XV
Questions and Verified Answers| 100%
Correct| A Grade
Q: Posts protecting piping and tubing entering a building from vehicular damage shall be?
a. clearly marked and identified with yellow paint
b. Be spaced not more than 48" apart
c. Buried not less than 36" below grade
d. Made from 6x6 pressure treated wood
Answer:
Buried not less than 36" below grade
(6.16.15)
Q: The equivalent length of a 2 1/2 NPS forged tee is?
a. 9.25'
b. 12.4'
c. 15.3'
d. 10.3'
Answer:
9.25' (Table A 16)
Q: What is the maximum horizontal spacing of supports for N.P.S. 1 1/4 inch gas pipe?
a. 8'
b. 15'
c. 6'
d. 10'
Answer:
10' (3m) (Table 6.2)
Q: When gas piping enters a building, it must?
a. Enter above grade
,b. Be taped, painted, and sleeved
c. Have a tracer wire
d. Enter below grade
Answer:
Enter above grade (6.15.8)
Q: When sizing a branch line, what is the minimum size of job fabricated welding fittings that
can be used on a NPS 6 gas supply header?
a. 2" NPS
b. 3/4" NPS
c. 3" NPS
d. 1/2" NPS
Answer:
3/4" NPS (6.8.8)
Q: A dirt pockets shall be installed at the bottom of any piping or tubing, on the final drop
serving an appliance other than a(n)
a. Unit Heater
b. Furnace
c. Clothes dryer
d. Boiler
Answer:
Clothes dryer (6.13.1)
Q: Direct-vent wall furnace shall use what maximum length of corrugated metal gas connector?
a. 6 ft.
b. 4 ft.
c. 8 ft.
d. 2 ft.
Answer:
2 ft. (6.21.3(c))
,Q: Every gas hose and gas fitting shall have a minimum working pressure of what.
XV XV XV XV XV XV XV XV XV XV XV XV XV XV
a. 275 PSIG minimum or the setting of the hydrostatic relief valves.
XV XV XV XV XV XV XV XV XV XV
b. 350 PSIG for piping and tubing operating at a container.
XV XV XV XV XV XV XV XV XV
c. 350 PSIG XV
d. 250 PSIG when connected to the outlet of a pump or compressor.
XV XV XV XV XV XV XV XV XV XV XV
Answer:
350 PSIG (6.2.9)
XV XV
Q: What are the requirements for back filling underground piping or tubing?
XV XV XV XV XV XV XV XV XV XV XV
a. It shall not have stones larger than 38 mm
XV XV XV XV XV XV XV XV
b. The fill material shall contain no sharp objects.
XV XV XV XV XV XV XV
c. A trench must be dug 15 inches deep
XV XV XV XV XV XV XV
d. All of the choices
XV XV XV
Answer:
The fill material shall contain no sharp objects (6.15.6)
XV XV XV XV XV XV XV XV
Q: Question 17
XV XV
What is the approximate purging time for NPS 1 that is 40 feet in length?
XV XV XV XV XV XV XV XV XV XV XV XV XV XV
a. 7 Seconds
XV
b. 28 SecondsXV
c. 14 Seconds
XV
d. 43 Seconds
XV
Answer:
28 seconds (Annex H Table H.1)
XV XV XV XV XV
Q: What is the maximum distance a readily accessible manual shut-
XV XV XV XV XV XV XV XV XV XV
off valve may be installed from an appliance?
XV XV XV XV XV XV XV
a. 2 ft. and identified
XV XV XV
b. 10 ft. and identified
XV XV XV
c. 25 ft. and identified
XV XV XV
d. 50 ft. and identified
XV XV XV
Answer:
50 ft. and identified (6.18.2(d))
XV XV XV XV
, Q: What is the minimum unthreaded portion of a piping outlet required when installing a gas
XV XV XV XV XV XV XV XV XV XV XV XV XV XV XV
piping through a floor for a range?
XV XV XV XV XV XV XV
a. 2 Inches XV
b. 6 Inches XV
c. 3 Inches
XV
d. 12 Inches XV
Answer:
2 inches (6.12.2)
XV XV
Q: When a high pressure test is required on a gas piping system, what type of medium wo
XV XV XV XV XV XV XV XV XV XV XV XV XV XV XV XV XV
uld you use to perform this test.
XV XV XV XV XV XV
a. High Pressure gas XV XV
b. Static pressure using gas XV XV XV
c. Low pressure gas XV XV
d. Air or an inert gas
XV XV XV XV
Answer:
Air or an inert gas
XV XV XV XV
Q: Nesting of bushings is permitted Tr
XV XV XV XV XV XV
ue
False
Answer:
False (6.14.2) XV
Q: Underground piping shall be joined or connected by welding, approved mechanical compr
XV XV XV XV XV XV XV XV XV XV XV XV
ession, or press-connect fittings.
XV XV XV
True XV
False
Answer:
True (6.15.2) XV
