Question

Of this listed, the test medium for a gas piping pressure test shall be___________.

1) Water
2) Air
3) Oil
4) Natural gas

Answer 1

The correct answer is option 1) Water.The correct test medium for a gas piping pressure test is water. Water is preferred because it is safer and provides stable pressure readings, mitigating the risks associated with the testing process.

Step-by-step explanation:

For a gas piping pressure test, water is typically used as the test medium. Using water is considered safer compared to air, oil, or the gas itself due to its incompressible nature, which minimizes the risk of an explosion should a failure occur during testing. Additionally, water does not compress like a gas, meaning it provides a stable reading of pressure throughout the system. Performing a pressure test with water is a standard method in the plumbing and natural gas industries to ensure the integrity of the piping systems.

When conducting a gas piping pressure test, water is commonly used as the test medium. This is because water is easily available, cost-effective, and poses minimal risk compared to other options such as air, oil, or natural gas. Using water allows for leak detection and ensures the integrity of the gas piping system.