Question

For welded gas piping systems of 200 feet or more with a working pressure of 10 psig, the minimum test pressure shall be:

a) 5 psig
b) 8 psig
c) 10 psig
d) 15 psig

Answer 1

The minimum test pressure for welded gas piping systems with a working pressure of 10 psig and a length of 200 feet or more is 1.5 psig.

Step-by-step explanation:

The minimum test pressure for welded gas piping systems of 200 feet or more with a working pressure of 10 psig is 1.5 psig (option d). The test pressure is calculated based on a formula provided by the American Society of Mechanical Engineers (ASME) code for pressure piping. The formula states that the test pressure should be 1.5 times the maximum allowable working pressure (MAWP), which in this case is 10 psig.