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Journeymen Gas Fitter EXam Questions With Correct Answers
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Journeymen Gas Fitter EXam Questions With Correct Answers an appliance has a demand of 180,000 btu/h. It is communicating with the outdoors through horizontal openings. what is the minimum net free area of each opening. 2,000 btu per square inch. 90 sq inch is the answer . 304.6.1 what is th...

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  • May 17, 2024
  • 5
  • 2023/2024
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Journeymen Gas Fitter EXam Questions With
Correct Answers
an appliance has a demand of 180,000 btu/h. It is communicating with the outdoors through
horizontal openings. what is the minimum net free area of each opening.
2,000 btu per square inch. 90 sq inch is the answer . 304.6.1


what is the minimum required distance that a connector to a mason chimney flue should be above
the lowest portion of the interior chimney flue
12 inches. 501.9


minimum distance from combustible construction for medium heat equipment to single wall metal
pipe
36 inches. 503.10.5


gas piping shall not penetrate builidng foundation walls
at any point below grade. 404.6


Recirculating direct-fired industial air heaters are required to provide properly designed _______
relief openings. 612.7


what code regulates storage of liquefied petroleum gas
NFPA 58. 401.2


The radius of the inner curve of plastic piping bends shall not be less than ________ the inside
diameter of the pipe
25 times. 405.3


unvented room heaters should be equipped with an ________ depletion sensitive safety shutoff
system
oxygen. 621.6


A single category 1 appliance has a gas demand of 98,000 btu/h. What is the max horizontal run for
the double wall Type B vent if it has a vertical run of 30 feet?
30 feet. table 502.2(1)


A vent connector is passing through an unconditioned space. what shall the portion of the vent
connector be listed as?
B or L. 503.10.2.2


No portion of a venting system shall pass through any circulation air duct or________.
Furnace Plenum. 503.3.5


what is the minimum burial depth underground gas piping
12 inches. 404.12

, what is the minimum distance that a tee fitting shall be installed downstream of a medium pressure
regulator outlet
10 pipe diameters. 410.2


what is the minimum thickness for an 8 inch galvanized steel vent connector for a low-heat appliance.
0.023 inches. table 503.10.2.4


which of the following is not true regarding cast iron fittings for gas piping
bushings are permitted. 403.10.4


what is they minimum height of a cleanout on a masonry chimney flue
6 inches. 501.15.3


When gas piping is in solid floors and one end terminates outdoors, how far shall the casing extend
beyond the point where the pipe emerges from the floor?
2 inches. 404.8.1


an appliance has a demand of 80,000 btu/h. It is communicating directly with the outdoors. what is
the minimum net free area of each opening.
20 sq inch. 304.6.1


what is the approximate length of the threaded portion on 1 inch iron gas pipe.
7/8 inches. table 403.92


what is the minimum clearance at the back for a floor mounted type unit heater to combustible
materials.
6 inches. 620.4


For other than black steel pipe, exposed piping shall be identified by a yellow marked "gas" in black
letters. what is the maximum spacing of the marking.
5 feet. 401.5


Approximately how many threads are to be cut on 4 inch iron gas pipe
13. table 403.9.2


which of the following matallic pipes is not permitted to be used for gas piping
cast-iron. 403.4.1


for gas piping underground beneath buildings, how far shall the conduit for gas piping extend outside
of a building when one end terminates outdoors.
4 inches. 404.14.1


which of the following is true regarding thread compounds.
shall be resistant to the action of lp gas. 403.9.3

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