Chapter 4 Flashcards
When multiple meters are installed, who must identify each meters user with approved permanent ID?
The installer
401.7
Gas piping is permitted to be sized in accordance the sizing sizing tables supplied by _______.
The piping manufacturer
402.3 item 2
Using the longest length method , piping is measured from the ________ to the ________.
point of delivery to the most remote outlet
402.4.1
Gas pipe located in concealed location shall not have _____.
Unions
404.5
Gas piping shall not enter a building _______.
underground
404.6
What is the minimum bury depth for gas piping?
12 inches
404.12
What is the test pressure for a gas line?
1 1/2 times maximum working pressure
406.4.1
Underground nonmetallic gas piping requires what color and size tracer wire?
yellow & not less than 18AWG
404.17.3
The spacing for supports of 1” steel gas pipe shall be ______.
8’ apart
407.2, 415.1 & table 415.1
Where shall the sediment trap be located unless it is part of the appliance?
downstream of the appliance shut off
408.4
The gas shutoff valve shall be within ____ feet of the appliance.
6 feet
409.5.1
The appliance shutoff valve shall be located ______ of an unions
Upstream
409.5.1
Flexible metallic tubing used to connect gas appliance shall not be more _____ feet long.
6 feet
411.1 item 3
When a union is used to connect gas piping to an appliance , it shall be accessible & within ______.
6 feet
411.1.6
The vent pipe for pressure regulators shall be protected from the entry of _______.
insects
410.3
