Minnesota Special Engineer Boiler License Practice Exam

What is the definition of condensate in boiler terminology?

1. Unburned fuel

2. Condensed steam

3. Liquid water only

4. Steam pressure

The correct answer is: Condensed steam

In boiler terminology, condensate refers specifically to the liquid that forms when steam cools and condenses back into water. This process happens in various parts of a steam system, such as condensate return lines or heat exchangers. The transformation occurs when steam loses heat, resulting in a phase change from vapor to liquid. Understanding this concept is essential for efficient boiler operation, as managing condensate can be crucial for maintaining system efficiency and preventing issues like water hammer or system corrosion. The other options do not accurately represent the concept of condensate. Unburned fuel pertains to unutilized fuel in the combustion process but does not relate to the phase change of steam. Liquid water only fails to encompass the specific context of steam condensation; it does not account for its origin or the significance of its phase change. Lastly, steam pressure is a measure of the force exerted by steam within the boiler or piping system and is unrelated to the definition of condensate itself.