G2 Exam Prep 2026 Questions and
Answers
The best tool for adjusting and setting the pressure on an appliance regulator:
a.
Manometer
b.
Velometer
c.
Psychrometer
d.
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,An analyzer - Correct answer-Manometer
3/8 NPS black iron pipe shall?
a. Not be used for propane
b. Not be used in a concealed location
c. Not be used for natural gas
d. Not be used for indoors - Correct answer-Not be used in a concealed location
(6.3.9)
A corrugated metal gas connector connected to a range must not exceed?
a. 6'
b. 5'
c. 3'
d. 4' - Correct answer-6' (6.21.3)
A manual shut-off valve shall be installed?
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,a. only on natural gas appliances
b. in either drop of riser of a residential appliance
c. downstream of the union
d. at the drip pocket - Correct answer-In either drop of riser of a residential
appliance (6.18.2)
Black iron pipe 2 1/2 NPS at 150' long shall be pressure tested to?
a. The greater of 50psig or 1.5 times the maximum operation pressure for 180
minutes
b. 50 psig for 180 minutes
c. 1.5 times the maximum operation pressure for 180 minutes
d. 50 psig for 60 minutes - Correct answer-50 psig for 60 minutes (Table 6.3)
Buried piping or tubing shall be?
a. only copper type L coated, type G coated, type K uncoated
b. only copper type K, L or type G
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, c. schedule 50 ASTM A-53
d. only copper type L or G coated - Correct answer-Only copper type L coated,
type G coated, type K uncoated (6.2.7)
What is pressure drop?
a. The difference in the static pressure at the meter, and the working pressure at the
appliance regulator
b. The difference between the U tube manometer is the end that is open to the
atmosphere and the pressurized side when the appliance regulator is working
c. The difference between supply pressure and appliance manifold pressure when
the appliance calls for heat
d. The difference in the working pressure at the gas meter, and the working
pressure at the appliance regulator - Correct answer-The difference in the working
pressure at the gas meter, and the working pressure at the appliance regulator
Fittings used for steel piping may be made from?
a. brass or iron
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Answers
The best tool for adjusting and setting the pressure on an appliance regulator:
a.
Manometer
b.
Velometer
c.
Psychrometer
d.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,An analyzer - Correct answer-Manometer
3/8 NPS black iron pipe shall?
a. Not be used for propane
b. Not be used in a concealed location
c. Not be used for natural gas
d. Not be used for indoors - Correct answer-Not be used in a concealed location
(6.3.9)
A corrugated metal gas connector connected to a range must not exceed?
a. 6'
b. 5'
c. 3'
d. 4' - Correct answer-6' (6.21.3)
A manual shut-off valve shall be installed?
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,a. only on natural gas appliances
b. in either drop of riser of a residential appliance
c. downstream of the union
d. at the drip pocket - Correct answer-In either drop of riser of a residential
appliance (6.18.2)
Black iron pipe 2 1/2 NPS at 150' long shall be pressure tested to?
a. The greater of 50psig or 1.5 times the maximum operation pressure for 180
minutes
b. 50 psig for 180 minutes
c. 1.5 times the maximum operation pressure for 180 minutes
d. 50 psig for 60 minutes - Correct answer-50 psig for 60 minutes (Table 6.3)
Buried piping or tubing shall be?
a. only copper type L coated, type G coated, type K uncoated
b. only copper type K, L or type G
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, c. schedule 50 ASTM A-53
d. only copper type L or G coated - Correct answer-Only copper type L coated,
type G coated, type K uncoated (6.2.7)
What is pressure drop?
a. The difference in the static pressure at the meter, and the working pressure at the
appliance regulator
b. The difference between the U tube manometer is the end that is open to the
atmosphere and the pressurized side when the appliance regulator is working
c. The difference between supply pressure and appliance manifold pressure when
the appliance calls for heat
d. The difference in the working pressure at the gas meter, and the working
pressure at the appliance regulator - Correct answer-The difference in the working
pressure at the gas meter, and the working pressure at the appliance regulator
Fittings used for steel piping may be made from?
a. brass or iron
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