NYC FUEL GAS CODE EXAM NEWEST 2025
ACTUAL EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
Where is the union located for a gas appliance? - CORRECT ANS>>A union fitting shall be
provided for appliance connected by rigid metallic pipe. Such unions shall be accessible and
located within 6 feet of the appliance.
Where is gas piping permitted? - CORRECT ANS>>Gas piping may be installed in public
corridors in residential buildings that do not have floors below grade or in multi-use buildings
that have a residential occupancy in accordance with the following, Gas piping shall be
permitted to be installed within a public corridor at the lowest level of the building or the
lowest residential level of the building. All gas valves located within the public corridor shall
be accessible for maintenance and inspection. Gas pressure within the public corridor piping
shall not exceed 1/2 psi. The completed piping within the public corridor is to be tested and
proven tight at 10 psig for a minimum of 30 minutes. The public corridor shall be ventilated in
accordance with the New York City Mechanical Code. The pipe shall not be installed in a
return air plenum. Pipes must be welded.
How much must piping for other than dry gas conditions be sloped? - CORRECT ANS>>Not less
the 1/4 inch in 15 feet to prevent traps.
Hanger spacing for 3/4 inch and 1 inch gas pipe - CORRECT ANS>>8 feet
When is water permitted for testing? - CORRECT ANS>>Fresh water may be used the test
medium where the required test pressure exceeds 100 p.s.i.g.
, 2
When do need temporary restraints when testing? - CORRECT ANS>>Expansion joints shall be
provided with temporary restraints, if required, for the additional trust load under test.
What must each digital gauge used to measure pressure in the magnitude of 3 and higher
read? - CORRECT ANS>>The gauge shall have a minimum reading of 1/100 of a p.s.i.g.
Where pipe passes through an outside wall, this piping shall not be less than how many
inches outside of the buildings? - CORRECT ANS>>With conduit going through the wall, pipe
shall not be less than 4 inches outside the building and sleeve shall be at least 1 inch beyond
the inner side of the wall. Pipe shall be vented above grade to the outdoors and shall be
installed so as to prevent the entrance of water and insects.
Threaded pipe may be used up to 4 inches at pressure no greater than? - CORRECT ANS>>1/2
p.s.i.g.
Gas piping going through the foundation wall of a building, shall be protected by?
- CORRECT ANS>>Encasing it in a protective sleeve.
Gas piping in solid floor shall be installed in a conduit of schedule 40 pipe. This conduit shall
extend not less than how many inches above the floor? - CORRECT ANS>>2 inches.