NATIONAL FUEL GAS CODE EXAM NEWEST 2025
ACTUAL EXAM COMPLETE 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
Where a minimum of 12" of cover cannot be provided, the pipe shall be
installed in a ______ or be "bridged" (shielded). - ANSWER--conduit
Gas piping in contact with earth or other corroding material, the piping
shall be protected against _________ in an approved manner -
ANSWER--corrosion
where dissimilar metals are joined underground, an ______ ________ or
_____ shall be used. - ANSWER--insulating coupling or fitting
Piping shall not be laid in contact with _______. - ANSWER--cinders
Uncoated thread or socket welded joints shall not be used in piping in
contact with ______ or where internal or external crevice corrosion is
known to occur. - ANSWER--soil
Where the formation hydrates or ice is known to occur, piping shall be
protected against ______. - ANSWER--freezing
underground piping, where installed through the outer foundation or
basement wall of a building, shall be __________ and the space between
, NATIONAL FUEL GAS CODE EXAM NEWEST 2025
ACTUAL EXAM COMPLETE 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
the gas piping and the building shall be sealed to prevent the entry of
_________. - ANSWER--encased in a protective pipe; gas or water.
piping underground, beneath buildings shall be ___________. -
ANSWER--encased in an approved conduit.
(installed in accordance with 7.1.6.1 or 7.1.6.2).
conduit installed underground, beneath buildings shall extend at least
____ inches outside the building; be _____ outdoors above grade, and be
installed so as to prevent the entrance of ______ and _____. -
ANSWER--4; vented; water and insects.
plastic pipe shall be installed ______ and ________ only. - ANSWER--
outdoors ; underground
plastic pipe shall be permitted to terminate above grade where an
________ is used. - ANSWER--anodeless riser
connections between metallica and plastic piping outdoors and
underground shall be made with fittings conforming to ________ or
___________. - ANSWER--ASTM D 2513; ASTM F 1973
, NATIONAL FUEL GAS CODE EXAM NEWEST 2025
ACTUAL EXAM COMPLETE 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
Tracer wire of _____ AWG or tape shall be buried with the plastic pipe
to facilitate locating. One end shall be brought aboveground at a
building wall or riser. - ANSWER--14
Gas piping to be sloped ___" for every ____' to prevent traps. -
ANSWER--1/4; 15
3/4" or 1" steel pipe shall be supported every ___'. - ANSWER--8
where gas piping is to be concealed, _____, tubing fittings, right and left
couplings, bushings, swing joints and compression couplings shall not
be used - ANSWER--unions
where copper tubing installed vertically and horizontally inside hollow
walls without protection, a steel striker barrier not less than ________ or
________ " thick or equivalent shall be installed between tubing and
finished wall. - ANSWER--1.3mm or .0508".
In industrial occupancies, gas pipe in solid floors such as concrete shall
be laid in _______ in the floor and covered to permit access to pipe with
minimum damage to the building structure. - ANSWER--channels
In other than indstrial occupancies where approved by the AHJ, gas pipe
embedded in concrete floor slabs made of portland cement shall be
, NATIONAL FUEL GAS CODE EXAM NEWEST 2025
ACTUAL EXAM COMPLETE 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
surrounded with a minimum of ____" of concrete, protected from
corrosion, and not embedded in concret made with quickset additives or
cinder aggregate. - ANSWER--1 1/2"
gas piping with fuel gas lighter than air, exceeding 5 psi, and installed in
vertical chases: shall be installed with a pressure regulator accessible for
service or repair and equipped with a vent limiting device and shall be
allowed to vent _______________ . - ANSWER--directly into the chase
gas piping with fuel gas lighter than air, exceeding 5psi and installed in
vertical chases, shall be installed with a pressure regulator accessible for
service or repair and vented __________; ______________. -
ANSWER--directly to the outdoors ; or to a point within the top 1' of the
chase.
Where fuel gas is heavier than air, exceeding 5psi and installed in
vertical chases, shall be installed with a pressure regulator accesible for
service or repair and vented _________. - ANSWER--only directly to
the outdoors.
chases used for gas regulator venting, shall be ventilated to the outdoors
and only at the top. The openings shall have a minimum free area in
square inches equal to the product of ______ of the maximum pressure
in the piping in psi times the largest nominal diameter of that piping in
inches, or cross sectional of the chase, whichever is smaller. Where
ACTUAL EXAM COMPLETE 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
Where a minimum of 12" of cover cannot be provided, the pipe shall be
installed in a ______ or be "bridged" (shielded). - ANSWER--conduit
Gas piping in contact with earth or other corroding material, the piping
shall be protected against _________ in an approved manner -
ANSWER--corrosion
where dissimilar metals are joined underground, an ______ ________ or
_____ shall be used. - ANSWER--insulating coupling or fitting
Piping shall not be laid in contact with _______. - ANSWER--cinders
Uncoated thread or socket welded joints shall not be used in piping in
contact with ______ or where internal or external crevice corrosion is
known to occur. - ANSWER--soil
Where the formation hydrates or ice is known to occur, piping shall be
protected against ______. - ANSWER--freezing
underground piping, where installed through the outer foundation or
basement wall of a building, shall be __________ and the space between
, NATIONAL FUEL GAS CODE EXAM NEWEST 2025
ACTUAL EXAM COMPLETE 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
the gas piping and the building shall be sealed to prevent the entry of
_________. - ANSWER--encased in a protective pipe; gas or water.
piping underground, beneath buildings shall be ___________. -
ANSWER--encased in an approved conduit.
(installed in accordance with 7.1.6.1 or 7.1.6.2).
conduit installed underground, beneath buildings shall extend at least
____ inches outside the building; be _____ outdoors above grade, and be
installed so as to prevent the entrance of ______ and _____. -
ANSWER--4; vented; water and insects.
plastic pipe shall be installed ______ and ________ only. - ANSWER--
outdoors ; underground
plastic pipe shall be permitted to terminate above grade where an
________ is used. - ANSWER--anodeless riser
connections between metallica and plastic piping outdoors and
underground shall be made with fittings conforming to ________ or
___________. - ANSWER--ASTM D 2513; ASTM F 1973
, NATIONAL FUEL GAS CODE EXAM NEWEST 2025
ACTUAL EXAM COMPLETE 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
Tracer wire of _____ AWG or tape shall be buried with the plastic pipe
to facilitate locating. One end shall be brought aboveground at a
building wall or riser. - ANSWER--14
Gas piping to be sloped ___" for every ____' to prevent traps. -
ANSWER--1/4; 15
3/4" or 1" steel pipe shall be supported every ___'. - ANSWER--8
where gas piping is to be concealed, _____, tubing fittings, right and left
couplings, bushings, swing joints and compression couplings shall not
be used - ANSWER--unions
where copper tubing installed vertically and horizontally inside hollow
walls without protection, a steel striker barrier not less than ________ or
________ " thick or equivalent shall be installed between tubing and
finished wall. - ANSWER--1.3mm or .0508".
In industrial occupancies, gas pipe in solid floors such as concrete shall
be laid in _______ in the floor and covered to permit access to pipe with
minimum damage to the building structure. - ANSWER--channels
In other than indstrial occupancies where approved by the AHJ, gas pipe
embedded in concrete floor slabs made of portland cement shall be
, NATIONAL FUEL GAS CODE EXAM NEWEST 2025
ACTUAL EXAM COMPLETE 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
surrounded with a minimum of ____" of concrete, protected from
corrosion, and not embedded in concret made with quickset additives or
cinder aggregate. - ANSWER--1 1/2"
gas piping with fuel gas lighter than air, exceeding 5 psi, and installed in
vertical chases: shall be installed with a pressure regulator accessible for
service or repair and equipped with a vent limiting device and shall be
allowed to vent _______________ . - ANSWER--directly into the chase
gas piping with fuel gas lighter than air, exceeding 5psi and installed in
vertical chases, shall be installed with a pressure regulator accessible for
service or repair and vented __________; ______________. -
ANSWER--directly to the outdoors ; or to a point within the top 1' of the
chase.
Where fuel gas is heavier than air, exceeding 5psi and installed in
vertical chases, shall be installed with a pressure regulator accesible for
service or repair and vented _________. - ANSWER--only directly to
the outdoors.
chases used for gas regulator venting, shall be ventilated to the outdoors
and only at the top. The openings shall have a minimum free area in
square inches equal to the product of ______ of the maximum pressure
in the piping in psi times the largest nominal diameter of that piping in
inches, or cross sectional of the chase, whichever is smaller. Where
