What is the water content characteristic of manufactured gas?

Manufactured gas, which is derived from the carbonization of organic materials or through processes such as gasification, typically contains a moderate amount of water vapor. This is due to the processes involved in its production, where steam or water may be used in the reactions, resulting in the incorporation of water into the gas stream.

The water content in manufactured gas can be affected by factors such as the temperature and pressure of the gasification process and the specific feedstock used. As a result, while the water content is not as high as in natural gas or some hydrocarbons, it is not negligible either. This moisture must be managed properly in applications to prevent corrosion or other issues in plumbing and gas systems.

This leads to the conclusion that the characteristic of manufactured gas regarding its water content is best described as moderate, making it the correct answer.